Abstract

First, please substitute the abstract on the attached new sheet. First, please substitute the abstract on the attached new sheet. Second, please substitute the specification with that shown in the attached Substitute Specification, which includes both clean and markedup copies. The substitute specification moves the text from the originally filed claims into an embodiments section and makes some minor changes referring to claims into references to embodiments.

IPC Classes  ?

• F16B 19/10 - Hollow rivetsMulti-part rivets fastened by expanding mechanically

Abstract

Aspects of the present invention relate to a fastener (10) comprising: an elongate hollow body (20) having a first axial aperture (22) in a first end (24) and a second axial aperture (26) in a second end (28); a spindle (40) located through the elongate hollow body (20), the spindle (40) comprising a driving portion (50) extending through the first axial aperture (22) of the elongate hollow body (20), a clamp portion (60) extending through the second axial aperture (26) of the elongate hollow body (20), and a threaded portion (70) connecting the driving portion (50) to the clamp portion (60) within the elongate hollow body (20); and a clamp shaft (80) extending over the clamp portion (60) of the spindle (40), through the second axial aperture (26) of the elongate hollow body (20), and into the elongate hollow body (20), the clamp shaft (80) comprising a threaded end (82) engaged with the threaded portion (70) of the spindle (40) for relative axial movement of the clamp shaft (80) along the clamp portion (60) of the spindle (40), and the clamp shaft (80) further comprising a plurality of clamping legs (90) at an opposite end of the clamp shaft (80) to the threaded end (82), the plurality of clamping legs (90) configured to move radially as the clamp shaft (80) is moved axially along the clamp portion (60) of the spindle (40); wherein the driving portion (50) comprises an inner casing (52) and an outer casing (54), the inner casing (52) engaging with the outer casing (54) via a clutch mechanism (100).

IPC Classes  ?

• B25B 31/00 - Hand tools for applying fasteners
• B21J 15/42 - Special clamping devices for workpieces to be riveted together, e.g. operating through the rivet holes
• F16B 19/10 - Hollow rivetsMulti-part rivets fastened by expanding mechanically

Abstract

A fastener includes a hollow tubular body with a stop portion. A hollow leg member is translatable within the body and includes a flange at a proximal end. A spring may be arranged between the flange of the hollow leg member and the stop portion of the hollow tubular body to urge the hollow leg member in a proximal direction with respect to the hollow tubular body. Alternatively, an engaging surface may be arranged to urge the hollow leg member into a position of engagement in which the threaded portion of the hollow leg member is engaged with the threaded portion of the bolt.

IPC Classes  ?

• F16B 19/10 - Hollow rivetsMulti-part rivets fastened by expanding mechanically

Abstract

A removable blind fastener includes: a body; a screw member; and a clamping member. The body includes a hollow cylindrical shaft with a proximal end and a distal end and a head at the proximal end, the head being hollow with an internal end face. The shaft has an open guide channel along a portion of its length and an urge channel opposite the guide channel located at the distal end of the shaft. The screw member has a threaded region that fits within the shaft and the screw member has a head at a proximal end that fits within the hollow head. The clamping member fits in the guide channel and has a threaded aperture for engaging with the threaded region of the screw member, such that rotation of the screw member causes the clamping member to move along the guide channel of the body.

IPC Classes  ?

• F16B 19/10 - Hollow rivetsMulti-part rivets fastened by expanding mechanically
• F16B 13/08 - Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front with separate gripping parts moved into their final position in relation to the body of the device without further manual operation

Abstract

The invention is in the field of removable fasteners for use in clamping components together, where the fastener may be inserted into pre-drilled apertures in the components and used in situations where it is not possible to access the reverse of the components. The invention particularly relates to use in clamping components with very narrow pre-drilled apertures.

IPC Classes  ?

• F16B 19/10 - Hollow rivetsMulti-part rivets fastened by expanding mechanically

Abstract

The present invention is concerned with improvements to removable fasteners and particularly relates to removable and re-usable fasteners with features that allow them to be gripped and handled positively. The present invention therefore provides a fastening system comprising a fastener and a tool, the tool being suitable for installing and removing the fastener from an aperture in a work-piece, wherein the fastener has a main body and a head at one end, and wherein the head of the fastener and the tool have grip features that allow the fastener to be releasably locked to the tool to prevent separation of the fastener and tool during installation and removal of the fastener. This allows the fastener to be handled positively without fear of the fastener becoming misaligned, or dropping off the tool.

IPC Classes  ?

• F16B 19/10 - Hollow rivetsMulti-part rivets fastened by expanding mechanically
• B25B 31/00 - Hand tools for applying fasteners
• F16B 21/16 - Means without screw-thread for preventing relative axial movement of a pin, spigot, shaft, or the like and a member surrounding itStud-and-socket releasable fastenings without screw-thread by separate parts with grooves or notches in the pin or shaft
• F16B 23/00 - Specially-shaped heads of bolts or screws for rotations by a tool
• F16B 13/08 - Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front with separate gripping parts moved into their final position in relation to the body of the device without further manual operation

Abstract

The invention is in the field of removable fasteners in applications where a high clamping load is required. The fastener comprises; a hollow tubular body (106), a hollow leg member (104) translatable within the body having a plurality of resilient legs (504a-f) each with a head at the distal end for engaging with a work-piece, the fastener further comprising an actuating member for biasing the resilient legs, wherein the actuating member comprises a profiled tip (103), wherein the profile of the tip includes a ramp for expanding the legs and a stop, wherein the stop and legs are arranged such that the stop can engage with an end surface of the legs to draw the legs further into the body and not bias the legs radially outward.

IPC Classes  ?

• F16B 19/10 - Hollow rivetsMulti-part rivets fastened by expanding mechanically

Abstract

A removable blind fastener includes an anti-rotation body having an external face with an aperture, the external face being suitable for engaging with a surface of a work-piece to be clamped. The fastener further includes a hollow leg member with a plurality of slots defining outwardly biasable resilient legs at one end and an externally threaded portion at the other end, the leg member having a bore tapering towards the legs, the leg member being translatable through the aperture, the leg member and the aperture further having inter-engaging anti-rotation features to prevent the leg member from rotating about its central axis relative to the anti-rotation body. The fastener may further include a thread tube with an internal thread cooperable with the external thread of the leg member and located co-axially with the leg member and a rod member having a shaft with a head end and a free end.

IPC Classes  ?

• F16B 19/10 - Hollow rivetsMulti-part rivets fastened by expanding mechanically
• B25B 31/00 - Hand tools for applying fasteners

Abstract

The present invention is concerned with improvements to removable fasteners and particularly relates to removable and re-usable fasteners with features that allow them to be gripped and handled positively. The present invention therefore provides a fastening system comprising a fastener and a tool, the tool being suitable for installing and removing the fastener from an aperture in a work-piece, wherein the fastener has a main body and a head at one end, and wherein the head of the fastener and the tool have grip features that allow the fastener to be releasably locked to the tool to prevent separation of the fastener and tool during installation and removal of the fastener. This allows the fastener to be handled positively without fear of the fastener becoming misaligned, or dropping off the tool.

IPC Classes  ?

• F16B 19/10 - Hollow rivetsMulti-part rivets fastened by expanding mechanically

Abstract

The present invention is concerned with improvements to removable fasteners and is particularly related to removable and re-usable fasteners for use in wet-fit applications, such as joining components that include a sealant or adhesive. A dowelling fastener (200) is provided having a head end and an insertion end and a cylindrical dowelling portion, wherein the fastener is provided with a plunger (204) at the insertion end for clearing material from a hole as the fastener is inserted into the hole, wherein the plunger is rigid and has a circular cross section with a diameter substantially the same as the dowelling portion of the fastener, the plunger tip thereby being a close fit with the hole. The plunger of the present invention is intended specifically for clearing materials from the bore and therefore has other features optimised for this purpose, including ridges around its periphery.

IPC Classes  ?

• F16B 13/08 - Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front with separate gripping parts moved into their final position in relation to the body of the device without further manual operation
• F16B 19/10 - Hollow rivetsMulti-part rivets fastened by expanding mechanically

Abstract

The present invention provides a removable blind fastener 2 having a first tubular element 4 comprising an arm portion 24, 26, 28, a second tubular element 6 comprising an arm portion 30, 31, 32, and an elongate screw member 8. The elements are arranged in telescoping relationship one with the other and which fastener, when in use as a temporary fastener, is caused to secure the component parts of an airframe by causing telescoping movement of the elements towards each other when the screw member is turned in one direction and is caused to release the component parts of the airframe by causing telescoping movement of the elements away from each other when the screw member is turned in an opposite direction. The arm portions of the elements are located in mutual juxtaposition for telescoping movement upon rotation of the screw member as aforesaid with end portions of elongate arms of the arm portions being brought into engagement with tapered sills 34, 36 of the first tubular element whereby the arms are caused to splay outwardly to bring the end portions into engagement with an underside of the component and moving the component into secure temporary relationship with the component of the airframe.

IPC Classes  ?

• F16B 13/08 - Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front with separate gripping parts moved into their final position in relation to the body of the device without further manual operation
• F16B 19/10 - Hollow rivetsMulti-part rivets fastened by expanding mechanically
• F16B 13/04 - Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front

Abstract

The present invention is concerned with improvements in or relating to removable blind fasteners and is particularly concerned with removable blind fasteners for use in temporarily co-joining wing elements of an aircraft frame. A removable blind fastener is provided comprising; an anti-rotation body having an external face with an aperture, wherein the external face is suitable for engaging with a surface of a work-piece to be clamped, the fastener further comprising a hollow leg member having a plurality of slots defining outwardly biasable resilient legs at one end and an externally threaded portion at the other end, the leg member having a bore tapering towards the legs, the leg member being translatable through the aperture, the leg member and the aperture further having inter-engaging anti-rotation features to prevent the leg member from rotating about its central axis relative to the anti-rotation body, the fastener further comprising a thread tube with an internal thread co- operable with the external thread of the leg member and located co-axially with the leg member, the fastener further comprising a rod member having a shaft with a head end and a free end, the shaft being a close fit with the bore of the leg member at the threaded end of the leg member, wherein the head end of the shaft is fixed to the thread tube at one end and the rest of the shaft passing through the thread tube and the free end of the shaft extending through the aperture and into the bore of the leg member, such that rotation of the rod member can cause the leg member to be drawn into the thread tube and the free end of the rod to engage with the tapered bore of the leg member and cause the legs to bias outwards.

IPC Classes  ?

• F16B 19/10 - Hollow rivetsMulti-part rivets fastened by expanding mechanically

Abstract

a) into engagement with an underside (126) of the component (12) and moving the component (12) into secure temporary relationship with the component (10) of the airframe.

IPC Classes  ?

• F16B 21/00 - Means without screw-thread for preventing relative axial movement of a pin, spigot, shaft, or the like and a member surrounding itStud-and-socket releasable fastenings without screw-thread
• F16B 5/02 - Joining sheets or plates to one another or to strips or bars parallel to them by means of fastening members using screw-thread
• F16B 19/10 - Hollow rivetsMulti-part rivets fastened by expanding mechanically
• F16B 13/06 - Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front combined with expanding sleeve

Abstract

The present invention provides a removable blind fastener 2 having a first tubular element 4 comprising an arm portion 24, 26, 28, a second tubular element 6 comprising an arm portion 30, 31, 32, and an elongate screw member 8. The elements are arranged in telescoping relationship one with the other and which fastener, when in use as a temporary fastener, is caused to secure the component parts of an airframe by causing telescoping movement of the elements towards each other when the screw member is turned in one direction and is caused to release the component parts of the airframe by causing telescoping movement of the elements away from each other when the screw member is turned in an opposite direction. The arm portions of the elements are located in mutual juxtaposition for telescoping movement upon rotation of the screw member as aforesaid with end portions of elongate arms of the arm portions being brought into engagement with tapered sills 34, 36 of the first tubular element whereby the arms are caused to splay outwardly to bring the end portions into engagement with an underside of the component and moving the component into secure temporary relationship with the component of the airframe.

IPC Classes  ?

• F16B 13/08 - Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front with separate gripping parts moved into their final position in relation to the body of the device without further manual operation
• F16B 19/10 - Hollow rivetsMulti-part rivets fastened by expanding mechanically

Abstract

The present invention provides a removable blind fastener (2) having a first tubular element (4) comprising an arm portion (22), a second tubular element (6) comprising an arm portion (28), and an elongate screw member (8). The elements (4 and 6) are arranged in telescoping relationship one with the other and which fastener (2), when in use as a temporary fastener, is caused to secure the component parts (10 and 12) of an airframe by causing telescoping movement of the elements (4and 6) towards each other when the screw member (8) is turned in one direction and is caused to release the component parts (10 and 12) of the airframe by causing telescoping movement of the elements (4 and 6) away from each other when the screw member (8) is turned in an opposite direction. The arm portions (22, 28) of the elements (4 and 6) are located in mutual juxtaposition for telescoping movement upon rotation of the screw member (8) as aforesaid with end portions (30a and 32a) of elongate arms (30 and 32) of the arm portions (22 and 28) being brought into engagement with a tapered portion (44) of the screw member (8) whereby the arms (30 and 32) are caused to splay outwardly to bring the end portions (30a and 32a) into engagement with an underside (126) of the component (12) and moving the component (12) into secure temporary relationship with the component (10) of the airframe.

IPC Classes  ?

• F16B 19/10 - Hollow rivetsMulti-part rivets fastened by expanding mechanically

Abstract

A removable blind fastener comprising a first member (10) having an elongate body (11) with a head (12) at one end, a second member (20) adapted for axial movement relative to the first member, the second member having a threaded aperture (25) and at least one adjustable finger (22), the adjustable finger having a flange remote from the head of the first member and the finger being within the circumference of the hollow body of the first member in the first position of the adjustable finger and the flange extends beyond the circumference of the hollow body of the first member in the second position of the adjustable finger. Rotation of a threaded member (30) in a first direction causes axial movement of the second member relative to the first member in a clamping direction.

IPC Classes  ?

• F16B 13/06 - Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front combined with expanding sleeve