Abstract

A Petri dish includes a receptacle and a matching lid, which both have a shape of revolution and are each delimited by a bottom wall and at least one peripheral rim. This also includes fingers and complementary locking elements. The receptacle and the lid, when rotated relative to each other, are able to occupy three or four different positions, including at least a “first position” and an “intermediate position”. This dish is distinguished by the fact that the locking elements carry at least one blocking member which blocks the fingers in the “intermediate position” and which opposes the return to the “first position”.

IPC Classes  ?

• C12M 1/22 - Petri dishes
• C12M 3/00 - Tissue, human, animal or plant cell, or virus culture apparatus
• C12M 1/00 - Apparatus for enzymology or microbiology

Abstract

Petri dish (1), which consists of two components, namely a receptacle (2) and a complementary lid (3), which both have an axisymmetric shape and which are each delimited by a bottom wall (20; 30) and at least one peripheral wall (21; 31), characterized in that said receptacle (2) and lid (3) bear complementary locking means (5; 4) arranged such that, when a stack is formed by superposing at least two dishes, the locking means borne by a first component (2; 3) of a first dish can engage with the locking means of the second component (3; 2) of the second dish, thus making them rigidly connected to one another. These locking means (5; 4) are capable of engaging by relative rotational movement of one dish (B1) with respect to the other (B2). They are borne by the peripheral walls (21; 31) and consist of protrusions (5; 4).

IPC Classes  ?

• C12M 1/22 - Petri dishes
• B01L 3/00 - Containers or dishes for laboratory use, e.g. laboratory glasswareDroppers

Abstract

The present invention relates to a Petri dish (1) consisting of a receptacle (2) and of a matching lid (3), which both have a shape of revolution and are each delimited by a bottom wall (20; 30) and at least one peripheral rim (21; 22; 31). It comprises fingers (4) and complementary locking elements (V). The receptacle and the lid, when rotated relative to each other, are able to occupy three or four different positions, including at least a "first position" and an "intermediate position". This dish is distinguished by the fact that said locking elements (V) carry at least one blocking means (53) which blocks the fingers (4) in the "intermediate position" and which opposes the return to the "first position", while permitting the move to the following position.

IPC Classes  ?

• C12M 1/22 - Petri dishes

Abstract

The invention relates to kits and methods for detecting a microorganism in a sample comprising an exogenous control for extraction and amplification as well as a colored pH indicator.

IPC Classes  ?

• C12Q 1/04 - Determining presence or kind of microorganismUse of selective media for testing antibiotics or bacteriocidesCompositions containing a chemical indicator therefor
• C12Q 1/68 - Measuring or testing processes involving enzymes, nucleic acids or microorganismsCompositions thereforProcesses of preparing such compositions involving nucleic acids

Abstract

The invention relates to a device for dispensing a prescribed material into a Petri dish, each Petri dish (P) comprising a removable lid capable of being arranged on a bottom (F) that is not as broad as the latter, comprising a means for bringing the Petri dish to a material-dispensing station (40). According to the invention, the device comprises a piston (32b) comprising a plate (320b) for supporting the bottom (F) at the material-dispensing station and means for rotating the plate (320b) on itself relative to the dispensing head (6), arranged so as to rotate the bottom (F) relative to dispensing head (6) in the position for dispensing the material into the bottom, in which the material outlet tip (61) is arranged relative to plate (320b) in order to dispense the material into the rotated bottom (F).

IPC Classes  ?

• C12M 1/22 - Petri dishes

Abstract

The present invention relates to an assembly formed from a planar rigid filtration membrane and generally flat plate (5) for accommodating and supporting this membrane (3), especially for the purpose of activating and/or revealing immobilized contaminants on said membrane, this support plate (5) having retention and immobilization means capable of cooperating with the periphery of the membrane (3), characterized in that said means comprise at least one non-deformable member (6) that projects from the general plane of said plate and which includes at least one stop tab (60), generally perpendicular to said plane (P), which is extended by a retaining appendage generally parallel to said plane, so that the engagement of said membrane (3) with said member (6) can take place only through a first movement (k) of the membrane substantially parallel to the plane (P) of the support followed by a second movement substantially perpendicular to said plane (P).

IPC Classes  ?

• B01L 3/00 - Containers or dishes for laboratory use, e.g. laboratory glasswareDroppers

Abstract

The invention relates to a device for dispensing a prescribed product in a Petri dish, said device comprising pistons (32a, 32b), a transfer member (31) with lid-bearing openings and a dish bottom, and product-dispensing means (6). According to the invention, the transfer member (31) is a shuttle (31) capable of translation relative to the base (2) according to a direct reciprocating movement of the bearing openings between either of first and second stop positions, the dispensing means (6) being arranged so as to dispense the product above the inner opening and under the upper opening at the bottom of the dish when said openings are in a position selected from the first and second stop positions.

IPC Classes  ?

• C12M 1/22 - Petri dishes

Abstract

The invention relates to a device for diluting a sample, comprising an end-piece (9) for dispensing a liquid diluent, means, having an upright (12) extending upwards from the base (2), for supporting and moving the end-piece (9) relative to the container support (6) between a first position in which the outlet (93, 94) of the end-piece (9) lies above the opening of the container, to allow the diluent to be fed into the container, and a second position in which the outlet (93, 94) is further away from the container. According to the invention, the second position of the outlet (93, 94) is to the side of the first, the upright (12) is fixed to the base (2), and the upright (12) has a cover (13) at the upper end thereof for supporting the end-piece (9), the cover (13) being rotatable on the upright (12) between said positions, a rotary drive motor for rotating the cover (13) between said positions being housed on the inside of the cover (13) and/or of the upright (12).

IPC Classes  ?

• G01N 1/38 - Diluting, dispersing or mixing samples

Abstract

The invention relates to a device for grinding and homogenizing the contents of a bag, comprising a frame (2) having at least one wall (24) defining an inner compartment (4), and at least one door, hinged to the frame (2) for closing the compartment, the door having an open position in which the bag can be introduced into and removed from the compartment (4), the compartment (4) containing a moving member (5) for pounding the bag against the door when the door is closed. In the invention, the wall (24) has an edge (27) fitted with a seal (20) designed to be applied against the door when the door is closed, to attenuate the noise of the pounding.

IPC Classes  ?

• B01F 11/00 - Mixers with shaking, oscillating, or vibrating mechanisms
• B02C 1/00 - Crushing or disintegrating by reciprocating members

Abstract

The invention relates to a device for grinding and homogenising the contents of a bag, including: a bag-supporting element (3), at least one bag-hammering member (5) which can move between a first position in which the bag is pressed against the supporting element (3) and a second position at a distance from the supporting element (3), a mechanism (10) for driving the aforementioned hammering member (5) cyclically such that it passes through the first and second positions, and a mechanism-starting means. According to the invention, the device also includes a mechanism control unit (11) comprising means (18) for detecting the cyclical movement of the hammering member (5) and automatic means (110) for controlling the above-mentioned mechanism (10), which are sensitive to the detection means such that the hammering member (5) is returned to the second position if said detection means have detected that the stroke of the member has stopped short of the first position.

IPC Classes  ?

• B01F 11/00 - Mixers with shaking, oscillating, or vibrating mechanisms
• B02C 1/00 - Crushing or disintegrating by reciprocating members