An electrode support assembly (1) for releasable attachment of an electrode (2) for bioelectric signal collection comprising a housing (3) and an electrode connector (4) having on a first side (41) an attachment means (42) for releasably attaching the electrode (2) in line with an axial direction (A) of the housing (3), wherein the electrode connector (4) is moveably connected to the housing (3) to allow a movement of the electrode connector (4) in relation to the housing (3) in a lateral direction (L) perpendicular to the axial direction (A) of the housing (3), wherein the electrode support assembly (1) further comprises a bearing (5) allowing lateral movement of the electrode connector (4) and the bearing (5) comprises several balls preferably held in a bearing cage.
A soft and dry electrode (1) for measuring a bioelectric signal of an individual, the electrode (1) comprising an electrode body (2), a connector side (11) with attachment means (31) for attaching the electrode (1) to a support member, and a contact side (12) opposite the connector side (11) for contacting a region of interest of the individual when applying the electrode (1) to the individual; wherein the electrode body (2) comprises a contact portion (4) of electrically conductive elastomeric material forming the contact side (12) of the electrode (1) and a connector portion (3) of electrically non-conductive material forming the connector side (11) of the electrode (1); wherein the electrode (1) further comprises a signal processing circuitry (5) enclosed between the connector portion (3) and the contact portion (4) of the electrode body (2), wherein the signal processing circuitry (5) is electrically connected to the contact portion (4); and wherein the signal processing circuitry (5) is provided with an electric connector (51) penetrating the connector portion (3) on the connector side (11).
A tube seal (1) having a longitudinal axis (A) and a first open end (10a) and a second open end (10b) configured to fluidically connect and seal a first and a second tube (2a, 2b) said tube seal (1) comprising an outer rigid sleeve portion (3) defining an inner sleeve surface (30) between the first end (10a) and the second end (10b), and an inner tube-like sealing body (4) of elastomeric material attached to the inner sleeve surface (30) of the sleeve portion (3) and comprising a circumferential inner sealing bead (41a, 41b) at each end (10a, 10b) of the tube seal (1); wherein the outer rigid sleeve portion (3) comprises an inner circumferential rib (31) protruding from the inner sleeve surface (30), and wherein the inner sealing body (4) comprises a first section (42a) and a second section (42b) extending along the longitudinal axis (A) of the tube seal (1) on both sides of the inner circumferential rib (31) and covering the entire inner surface (30) of the sleeve portion (3), and wherein the inner circumferential rib (30) radially extends over an inner surface (40) of the sealing body (4).
The invention refers to a tactile sensor device (1) comprising a magnetic sensor element (3) capable of measuring a magnetic field, and a magnetized body (4) of elastomeric material comprising evenly dispersed permanently magnetized filler material (42) generating a permanent inner magnetic field (M); wherein the magnetized body (4) is arranged near the magnetic sensor element (3) such that the magnetic flux density of the inner magnetic field (M) is measurable by the magnetic sensor element (3); and wherein the tactile sensor device (1) further comprises a processing unit configured for detecting a change in the magnetic field upon an external interaction with the tactile sensor device, and wherein the tactile sensor device (1) further comprises a compression body (6) of elastomeric material, wherein the compression body (6) is arranged between the magnetized body (4) and the magnetic sensor element (3).
B25J 13/08 - Controls for manipulators by means of sensing devices, e.g. viewing or touching devices
G01B 7/24 - Measuring arrangements characterised by the use of electric or magnetic techniques for measuring the deformation in a solid, e.g. by resistance strain gauge using change in magnetic properties
G01L 5/22 - Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring the force applied to control members, e.g. control members of vehicles, triggers
G01L 1/12 - Measuring force or stress, in general by measuring variations in the magnetic properties of materials resulting from the application of stress
G01L 5/169 - Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring several components of force using magnetic means
5.
DEEP-DRAWING DEVICE TO PREVENT WRINKLING DEFECTS IN THE PRODUCTION OF THIN-WALLED DEEP-DRAWN PARTS
inspire AG für mechatronische Produktionssysteme und Fertigungstechnik (Switzerland)
Inventor
Hora, Pavel
Huwiler, Hansruedi
Abstract
A deep-drawing device for the production of a thin-walled deep-drawn part from a sheet-metal blank includes a drawing die with a drawing edge and a sheet-metal holder, which together form a flange feed zone of the deep-drawing device, and a deep-drawing punch. The deep-drawn part includes a wall inclined toward a working direction. The deep-drawing device has at least sectional controlled wrinkle-generation elements in the flange feed zone.
A method for determining feature characteristics (0) of a surface (1), where the method comprises the following steps: (a) equipping a mobile wheeled machine (2), preferably a vehicle, a hand-held device, or a robot, with (i) at least one measurement wheel (3), where the at least one measurement wheel (3) comprises at least one film-based sensor stripe (4) which is arranged in such a way that it circles the at least one measurement wheel (3) with respect to the axis of rotation of the at least one measurement wheel (3), and where the at least one film-based sensor stripe (4) is covered by a rubber layer (5) on a radially outer side of the at least one film-based sensor stripe (4), (ii) a movement sensing device (6), and (iii) means for data transmission (7) from the at least one film-based sensor stripe (4) and the movement sensing device (6); (b) driving the mobile wheeled machine (2) over the surface (1); (c) transmitting measurement data measured by the at least one film-based sensor stripe (4) and movement sensing data gathered by the movement sensing device (6) to a computer hardware (8) using the means for data transmission (7), where the computer hardware (8) is equipped with means for data reception (81); and (d) on the computer hardware (8): (i) receiving the transmitted measurement data and the transmitted movement sensing data using the means for data reception (81), and (ii) processing the received measurement data and the received movement sensing data by means of a sequence of one or more software modules (82) installed on the computer hardware (8), where at least one module of the sequence of one or more software modules (82) is configured to determine the feature characteristics (0) from its input. (Fig. 1)
G01C 7/04 - Tracing profiles of land surfaces involving a vehicle which moves along the profile to be traced
E01B 35/00 - Applications of measuring apparatus or devices for track-building purposes
E01C 23/01 - Devices or auxiliary means for setting-out or checking the configuration of new surfacing, e.g. templates, screed supportsApplications of apparatus for measuring, indicating, or recording the surface configuration of existing surfacing, e.g. profilographs
G01B 11/25 - Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures by projecting a pattern, e.g. moiré fringes, on the object
G01N 21/88 - Investigating the presence of flaws, defects or contamination
A flexible sheet-like sensor device (1) for temperature distribution measurements of a battery cell of a battery pack comprising a flexible, dielectric foil (2) with a first surface (21) and second surface (22) opposite the first surface (21); electrically conductive tracks (3) printed on the first surface (21) of the dielectric foil (2); a plurality of surface mount thermistors (4) arranged on the first surface (21) of the dielectric foil (2), the surface mount thermistors (4) being electrically connected via the electrically conductive tracks (3), wherein the plurality of surface-mounted thermistors (4) are distributed over the first surface (21) of the dielectric sheet (2) to be able to measure the temperature distribution over a surface of an individual battery cell of the battery pack.
G01K 1/14 - SupportsFastening devicesArrangements for mounting thermometers in particular locations
G01K 7/22 - Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat using resistive elements the element being a non-linear resistance, e.g. thermistor
H01M 10/48 - Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
A gasket (1) for sealing a space between two mating surfaces, the gasket (1) having a plurality of elongated longitudinal sections (2) of moulded elastomer forming at least part of a circumferential, continuous sealing profile (4) of the gasket (1), wherein the sealing profile (4) comprises a first sealing side (41) and a second sealing side (42) arranged opposite the first sealing side (41), wherein the first sealing side (41) and the second sealing side (42) each form part of a first and second continuous sealing surface for contacting the two mating surfaces; wherein the sealing profile (4) further comprises an inner side (43) and an outer side (44); wherein at least one of the elongated longitudinal sections (2) is provided with at least one tolerance compensation zone (5), wherein the tolerance compensation zone (5) is formed by a narrowed bridge portion (51, 51') spanning a width of the sealing profile (4) from the inner side (43) to the outer side (44) of the sealing profile (4) and forming part of the first and second continuous sealing surface, wherein the at least one elongated longitudinal section (2) is not stabilized by a rigid part.
A soft electrode (1) for measuring bioelectric signals of an individual, the electrode (1) is made of elastomeric material and has conductive properties and comprises a central connector portion (2) with attachment means for attaching the electrode (1) to a measuring apparatus and a plurality of flexible contact members (3); the electrode (1) has a connector side (11) on the side of the attachment means, and a contact side (12) opposite the connector side (11) and facing the individual when applying the electrode (1) to the individual; the connector portion (2) further defining a central axis (A) of the electrode (1) arranged centrally through the contact side (12) and the connector side (11) of the electrode (I); wherein the plurality of contact members (3) are arranged around the central axis (A) and connected with the connector portion (2), the plurality of contact members (3) further protrudes on the contact side (12) of the connector portion (2) for contacting an area of interest of the individual for measurement; wherein each contact member (3) of the plurality of contact members (3) comprises a flexible leg portion (31) and a foot portion (32) at a free end (33) of the flexible leg portion (31); wherein the flexible leg portion (31) has a longitudinal cavity (4) formed by an inner wall (34) curved around a longitudinal axis (L) of the contact member (3), wherein the longitudinal cavity remains open on the connector side (I I) and is closed on the contact side (12) by the foot portion (32); and wherein the foot portion (32) and the flexible leg portion (31) form a continuous radially inner contact surface (5).
EMPA EIDGENÖSSISCHE MATERIALPRÜFUNGS- UND FORSCHUNGSANSTALT (Switzerland)
Inventor
Liu, Ming
Lettieri, Luana
Lucchini, Mattia Alberto
Nyström, Gustav
Geiger, Thomas
Abstract
A method for producing hydrophobic dry surface-modified fibrillated cellulose to improve its dispersion in hydrophobic matrices comprising the steps of: a.) providing micro-fibrillated cellulose suspension of 5 to 30 wt% in water, preferably approx. 7 to 11 wt%; b.) adding a surfactant to the suspension with a mass ration of surfactant to micro-fibrillated cellulose suspension of 0.1 to 2.0 wt%, preferably 0.5 to 1.0 wt%, more preferably about 0.8 wt%; c.) adding a surface modifier to the suspension with a mass ratio of surface modifier to micro- fibrillated cellulose dry matter of 20 to 300 wt%, preferably 80 to 120 wt%, more preferably approx. 100 wt%, wherein the surface modifier is obtained through a chemical reaction of a silane compound with a phenolic compound to create covalent bonds between the silane compound and the phenolic compound; d.) covalently binding the surface modifier to the micro-fibrillated cellulose via (i) hydrolysis of the surface modifier to form reactive silanol groups (R-Si-OH) and (ii) condensation of the silanol groups of the surface modifier with the available OH-groups of the micro-fibrillated cellulose, e.) adding a plasticizer to the suspension of surface modified micro-fibrillated cellulose; f.) drying the suspension to remove water and obtain the dry powder of surface-modified micro-fibrillated cellulose.
An elastomeric sensor component includes a component body made of elastomer material and a sensor module embedded within the component body. The sensor module includes a sensor chip, a radiofrequency transponder chip electrically connected to the sensor chip, and a loop antenna electrically connected to the radiofrequency transponder chip. The elastomeric sensor component further includes a booster antenna having a booster antenna loop, with the booster antenna loop deposited on a surface of the component body in order to allow near field data communication and energy transfer with the loop antenna.
H01Q 1/22 - SupportsMounting means by structural association with other equipment or articles
H01Q 7/00 - Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop
B29C 43/18 - Compression moulding, i.e. applying external pressure to flow the moulding materialApparatus therefor of articles of definite length, i.e. discrete articles incorporating preformed parts or layers, e.g. compression moulding around inserts or for coating articles
B29K 21/00 - Use of unspecified rubbers as moulding material
B29L 31/34 - Electrical apparatus, e.g. sparking plugs or parts thereof
12.
METHOD FOR PRODUCING AN ELASTOMERIC COMPONENT COMPRISING A PRINTED STRUCTURE
A method for producing an elastomeric component, preferably an elastomeric sealing component, including an elastomer body and a printed structure, preferably a printed electronic structure or circuit, on a surface of the elastomer body. The method includes: a. providing a planar foil of thermoplastic material having a printable surface; b. printing a structure onto the printable surface to obtain the printed structure; c. providing an elastomer substrate for forming the elastomer body; d. placing the planar foil with the printed structure onto the elastomer substrate; and e. laminating the combined planar foil and elastomer substrate by applying heat and pressure. The elastomeric component is obtained in that the elastomer substrate is formed to the shape of the elastomer body before step d); the elastomer substrate is formed to the shape of the elastomer body during lamination; or the elastomer substrate is formed to the shape of the elastomer body after lamination.
H05K 3/12 - Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern using printing techniques to apply the conductive material
13.
FLUID MONITORING SYSTEM FOR MONITORING A PRESENCE OR A CONDITION OF A FLUID USING ITS PERMITTIVITY AND METHOD THEREFORE
A monitoring system monitors a presence or condition of a particular fluid in a device for storing or conducting the fluid using permittivity properties of the fluid. The system includes: the device for storing or conducting the fluid; a detector component being an integral part of the device and having a component body and a passive antenna deposited on a surface of the component body; and a reader device having a reader antenna. The reader device emits an electromagnetic output signal with a predefined output power and over a predefined frequency range via the reader antenna to the passive antenna and measures a reflected signal over the predefined frequency range, which is reflected from the passive antenna. The reader device also compares the reflected signal with at least one reference signal of at least one reference fluid to determine the presence or the condition of the particular fluid.
G01N 27/22 - Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating capacitance
G01V 3/08 - Electric or magnetic prospecting or detectingMeasuring magnetic field characteristics of the earth, e.g. declination or deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices
An electrode for measuring bioelectric signals of an individual includes a dome-like shape support body having a concave contact side facing the individual and an opposite convex connector side. The support body defines a central axis arranged centrally through the contact and connector sides. The electrode includes outer contact pins located on the contact side at a radially outer region of the support body for contacting an area of interest to be measured. The electrode is made of elastomeric material and has conductive properties. The support body is flexible such that after applying the electrode to the individual a force exerted centrally onto the connector side and parallel to the central axis leads to an upwards bending of the radially outer region. The upwards bending leads to tilting of the outer contact pins such that a tip of the outer contact pins moves radially outwards along the area of interest.
A61B 5/268 - Bioelectric electrodes therefor characterised by the electrode materials containing conductive polymers, e.g. PEDOT:PSS polymers
H01B 1/12 - Conductors or conductive bodies characterised by the conductive materialsSelection of materials as conductors mainly consisting of other non-metallic substances organic substances
A61B 5/273 - Connection of cords, cables or leads to electrodes
17 - Rubber and plastic; packing and insulating materials
Goods & Services
Unprocessed or semi-processed rubber; synthetic rubber;
electrically conductive rubber; dielectrics (insulators);
rubber solutions; moulded parts made of rubber
(semi-finished products).
17 - Rubber and plastic; packing and insulating materials
Goods & Services
(1) Gomme brute et mi-ouvrée; caoutchouc synthétique; caoutchouc conducteurs d'éléctricité sous forme extrudée servant à la fabrication ultérieure; matériaux et revêtements diélectriques isolants et protecteurs pour capteurs pour la collecte de données biométriques humaines; dissolutions de caoutchouc; produits moulés en caoutchouc mi-ouvré pour la fabrication de capteurs d'activité à porter sur soi et de capteurs pour la collecte de données biométriques humaines.
17 - Rubber and plastic; packing and insulating materials
Goods & Services
Unprocessed and semi-processed rubber being raw or semi-worked rubber; synthetic rubber; electrically conductive rubber in extruded form for use in further manufacture; dielectrics; rubber solutions; semi-worked rubber, namely, moulded parts of rubber for wearable sensors to be used in long-term bio-signal monitoring or stimulation
A soft electrode (1) for measuring bioelectric signals of an individual, the electrode (1) comprising a support body (2) having a contact side (21) facing the individual when applying the electrode (1) to the individual and a connector side (22) opposite the contact side (21), and the support body (2) further defining a central axis (A) arranged centrally through the contact side (21) and the connector side (22); the electrode (1) further comprising a plurality of outer contact pins (3) located at a radially outer region (23) of the support body (2) for contacting an area of interest to be measured, the plurality of outer contact pins (3) being supported and arranged on the contact side (21) of the support body (2); wherein the electrode (1) is made of elastomeric material and has conductive properties. The support body (2) has a dome-like shape having a concave side (21a) and a convex side (22b), wherein the concave side (21a) forms the contact side (21) of the support body (2), and the support body (2) is designed with a flexibility such that after applying the electrode to the individual a force exerted centrally onto the connector side (22) and parallel to the central axis (A) leads to an upwards bending of the radially outer region (23) of the support body (2) in direction of the connector side (22), wherein the upwards bending of the radially outer region (23) of the support body (2) leads to a tilting of the plurality of outer contact pins (3) relative to the central axis (A) such that a tip (31) of the outer contact pins (3) moves radially outwards along the area of interest of the individual.
Elastomeric sensor component (1) comprising a component body (2) made of elastomer material and a sensor module (3) embedded within the component body (2), the sensor module (3) comprising a sensor chip (4), a radiofrequency transponder chip (5) electrically connected to the sensor chip (4), and a loop antenna (6) electrically connected to the radiofrequency transponder chip (5); wherein the elastomeric sensor component (1) further comprises a booster antenna (7) comprising a booster antenna loop (71), wherein the booster antenna loop (71) is deposited on a surface of the component body (2) in order to allow near field data communication and energy transfer with the loop antenna (6).
G06K 19/077 - Constructional details, e.g. mounting of circuits in the carrier
G06K 19/07 - Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards with integrated circuit chips
20.
METHOD FOR PRODUCING AN ELASTOMERIC COMPONENT COMPRISING A PRINTED STRUCTURE
Method for producing an elastomeric component (1), preferably an elastomeric sealing component, comprising an elastomer body (4) and a printed structure (3), preferably a printed electronic structure or circuit, on a surface of the elastomer body (4), comprising the steps of: a. providing a planar foil (2) of thermoplastic material having a printable surface (21); b. printing a structure onto the printable surface (21) of the planar foil (2) to obtain the printed structure (3); c. providing an elastomer substrate for forming the elastomer body (4) of the elastomeric sealing component; d. placing the planar foil (2) with the printed structure (3) onto the elastomer substrate; and e. laminating the combined planar foil (2) and elastomer substrate by applying heat and pressure; wherein the elastomeric component (1) is obtained in that (i) the elastomer substrate of step c) is formed to the shape of the elastomer body (4) of the elastomeric component before step d); or (ii) the elastomer substrate of step c) is formed to the shape of the elastomer body (4) of the elastomeric component during the lamination step e); or (iii) the elastomer substrate of step c) is formed to the shape of the elastomer body (4) of the elastomeric component after the lamination step e).
H05K 1/09 - Use of materials for the metallic pattern
H05K 1/18 - Printed circuits structurally associated with non-printed electric components
H05K 3/12 - Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern using printing techniques to apply the conductive material
A fluid monitoring system for monitoring a presence or a condition of a particular fluid (9) in a device (10) for storing or conducting the fluid (9) using the permittivity properties of the fluid (9), said system comprising: the device (10) for storing or conducting the fluid (9); a detector component (1) being an integral part of the device and comprising a component body (2) and a passive antenna (3), preferably in the form of a split-ring resonator (30), which is deposited on a surface (4) of the component body (2); and a reader device (5) comprising a reader device antenna (6); wherein the reader device (5) is adapted to emit an electromagnetic output signal (7) with a predefined output power and over a predefined frequency range via the reader device antenna (6) to the passive antenna (3) of the detector component (2) and to measure a reflected signal (8) over the predefined frequency range, which is reflected from the passive antenna (2); and wherein the reader device (5) is further adapted to compare the measured reflected signal (8) with at least one reference signal of at least one known reference fluid to determine the presence or the condition of the particular fluid (9) in the device (10).
G01N 27/22 - Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating capacitance
G01N 22/00 - Investigating or analysing materials by the use of microwaves or radio waves, i.e. electromagnetic waves with a wavelength of one millimetre or more
22.
Method for manufacturing a beverage capsule with sealing ring
A method for manufacturing a beverage capsule with an outer sealing ring comprised of elastic material involves the following steps: (a) providing a capsule body with a peripheral, flange-like edge for attaching a sealing film; (b) providing a sealing ring comprised of elastic material and adjusted to the flange-like edge; (c) placing the sealing ring and the capsule body in a capsule mount of a sealing device for sealing the capsule body with the sealing film, with the sealing ring arranged between the capsule mount and the flange-like edge of the capsule body; (d) filling the capsule body with a beverage substrate; and sealing the capsule body with the sealing film and simultaneously fastening the sealing ring to the flange-like edge using the sealing device.
A pump diaphragm for a diaphragm pump for conveying a fluid includes a solid core with a connection device for a drive rod of the diaphragm pump, and a plate-shaped elastic diaphragm body made of rubber having a peripheral clamping edge. The solid core is embedded at least partially in the diaphragm body and the solid core is produced from a thermoplastic and forms covalent bonds with the elastic diaphragm body made of rubber without adhesive. For this purpose, the thermoplastic, for example polyamide 612 or polyphenylene ether, and the rubber, a periodically cross-linked rubber such as EPDM, are selected in such a way that they are covalently cross-linked with one another at the boundary layer. In this way, a bonding layer that is susceptible to weakening or destruction is not present between the core and the diaphragm body.
F04B 43/02 - Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms
F04B 15/02 - Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts the fluids being viscous or non-homogeneous
F04B 43/00 - Machines, pumps, or pumping installations having flexible working members
The invention relates to a method for forming a dimensionally stable three-dimensional shape into a sheet-like substrate (3) of thermoplastic material comprising the steps of: a.) providing a mould including a first die (1) with a first template surface (11) for contacting an upper surface (31) of the substrate (3) and a second die (2) with a second template surface (21) for contacting a lower surface (32) of the substrate (3) opposite the upper surface (31) of the substrate (3); each template surface (11, 21) having an inverse of a desired shape to be transformed to the upper and lower surfaces (31, 32) of the substrate (3); and at least one of the first die (1) and the second die (2) being transparent to electromagnetic waves of a predetermined wavelength; b.) providing at least one absorption layer (5, 5') being able to be heated by absorption of an electromagnetic irradiation (4, 4') of the predetermined wavelength and thereby heating the thermoplastic substrate (3) to or above its glass transition temperature; c.) placing the substrate (3) between the first and the second die (1, 2) of the mould and closing the mould; d.) irradiating the absorption layer (5, 5') with the electromagnetic irradiation (4, 4') in order to heat the thermoplastic substrate (3) to or above its glass transition temperature during a sufficient time to transform the thermoplastic substrate into the three- dimensional shape.
A control diaphragm for controlling fuel supply in a carburetor of an internal combustion engine includes a functional region enclosing a sensing region concentrically and a peripheral fastening border for fastening the control diaphragm in the diaphragm carburetor. The control diaphragm closes a control chamber of the diaphragm carburetor and is operatively connected via the central sensing region to a control lever in the control chamber and senses the axial deflection of the sensing region in a manner dependent on operation-induced pressure change in the control chamber. The control diaphragm consists in one piece of temperature-resistant and fuel-resistant, non-elastomeric plastic and the functional region is configured by way of a multiplicity of concentric corrugations. The outermost corrugation directly adjoins the fastening border, and the radius of the outermost corrugation corresponds substantially to the radius of the control chamber. The sensing region directly adjoins the innermost corrugation and the radius of the sensing region corresponds to from 5 to 25% of the outer radius of the functional region.
The invention relates to a pump diaphragm (1) for a diaphragm pump for conveying a fluid, comprising a solid core (3) with a connection device (4) for a drive rod of the diaphragm pump, and a plate-shaped elastic diaphragm body (2) made of rubber having a peripheral clamping edge (6). plaThe solid core (3) is embedded at least partially in the diaphragm body (2), and, according to the invention, the solid core (3) is produced from a thermoplastic and forms covalent bonds with the elastic diaphragm body (2) made of rubber without adhesive. For this purpose, the thermoplastic, for example polyamide 612 or polyphenylene ether, and the rubber, a periodically cross-linked rubber such as EPDM, are selected in such a way that they are covalently cross-linked with one another at the boundary layer. In this way, a bonding layer that is susceptible to weakening or destruction is not present between the core and the diaphragm body.
F04B 15/02 - Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts the fluids being viscous or non-homogeneous
F04B 43/00 - Machines, pumps, or pumping installations having flexible working members
F04B 43/02 - Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms
A control diaphragm for controlling a fuel feed in a diaphragm carburetor of an internal combustion engine, includes a central, substantially flat feeling region, a functional region circumferentially extending around the feeling region in a concentric manner, and a peripheral fastening border for fastening the control diaphragm. The control diaphragm closes off a control chamber of the diaphragm carburetor in a sealing manner in the installed state and is operatively connected by the central feeling region to a controlling lever of the diaphragm carburetor arranged in the control chamber, which controlling lever feels the axial deflection of the feeling region in accordance with an operating-related pressure change in the control chamber. The control diaphragm is composed of a temperature- and fuel-resistant, non-elastomeric and uniformly thick plastic film, in which a plurality of concentric corrugations forming the functional region are formed so that axial deflection of the feeling region progresses in dependence on the operating-related pressure change in the control chamber in accordance with a predefined displacement/pressure characteristic curve.
The invention relates to a control device for a diaphragm carburettor, said control device comprising a control diaphragm and a control lever, wherein the control diaphragm has a central scanning region, a functional region concentrically surrounding and adjacent to the scanning region, and a peripheral securing edge for securing the control diaphragm in the diaphragm carburettor, and wherein the control lever is mounted with a hinge in the diaphragm carburettor in the assembled position, with a first end operatively connected to a control valve of the diaphragm carburettor and with a second end contacting the central scanning region of the control membrane, such that same can scan an axial deflection of the scanning region depending on a operation-dependent pressure change. According to the invention, on the second end, the control lever has a circular scanning plate that is flat on the diaphragm side, wherein the diameter of the scanning plate is greater than 50 per cent, preferably greater than 85 per cent, particularly preferably greater than 90 per cent of the diameter of the scanning region of the control diaphragm.
In the case of a control diaphragm for controlling a supply of fuel in a diaphragm carburetor of an internal combustion engine, comprising a central sensing region (1), a functional region (2) which encloses the sensing region (1) concentrically, and a peripheral fastening border (3) for fastening the control diaphragm in the diaphragm carburetor; wherein, in the installed state, the control diaphragm closes a control chamber (5) of the diaphragm carburetor sealingly and is operatively connected via the central sensing region (1) to a control lever (4) of the diaphragm carburetor, which control lever (4) is arranged in the control chamber (5) and senses the axial deflection of the sensing region (1) in a manner which is dependent on an operation-induced pressure change in the control chamber (5); it is provided that the control diaphragm consists in one piece of temperature-resistant and fuel-resistant, non-elastomeric plastic; in that the functional region (2) between the fastening border (3) and the sensing region (1) is configured by way of a multiplicity of concentric beads (8), wherein the outermost concentric bead directly adjoins the fastening border (3), and the radius of the outermost concentric bead corresponds substantially to the radius of the control chamber; that the sensing region (1) directly adjoins the innermost concentric bead of the functional region (2); and the radius of the sensing region (1) corresponds to from 5 to 25% of the outer radius of the functional region (2); and in that the sensing region (1) has a reinforcing means (10, 11).
The invention relates to a control diaphragm for controlling a fuel feed in a diaphragm carburetor of an internal combustion engine, comprising a central, substantially flat feeling region (1), a functional region (2) circumferentially extending around the feeling region (1) in a concentric manner, and a peripheral fastening border (3) for fastening the control diaphragm in the diaphragm carburetor; wherein the control diaphragm closes off a control chamber (5) of the diaphragm carburetor in a sealing manner in the installed state and is operatively connected by means of the central feeling region (1) to a controlling lever (4) of the diaphragm carburetor arranged in the control chamber (5), which controlling lever feels the axial deflection of the feeling region (1) in accordance with an operating-related pressure change in the control chamber (5). According to the invention, the control diaphragm is composed of a temperature- and fuel-resistant, non-elastomeric and uniformly thick plastic film, in which a plurality of concentric corrugations (8) forming the functional region (2) are formed so that the axial deflection of the feeling region (1) progresses in dependence on the operating-related pressure change in the control chamber (5) in accordance with a predefined displacement/pressure characteristic curve.
