Itw Limited

Other

Illinois Tool Works Inc.

Itw Limited, Fastex Division

David Austin Burt

Gareth William Thomas

George Relton McMillan

Security seals () are widely used to demonstrate the integrity of a closed container, truck, roll pallet, cage or box. Typically such security seals () are made from plastics material and have a strap () with a plug () at one end and a socket () at the other end. The socket includes a one-way lock so that when the security seal () is threaded through a locking point and the plug () inserted into the socket () the plus is locked irremovably into the socket. The only way that the security seal can subsequently be removed is by destroying it. Such a security seal () includes a recognizable sequence of indicia () extending along substantially the whole length of the strap portion () . The presence of the recognizable sequence of indicia () along the length of the strap () make it almost impossible to cut such a strap () and reconnect the cut ends without disrupting the sequence of indicia () so that it is immediately evident that the security seal () has been tampered with.

Security seal

Security seals () are used to indicate that a closed container has remained closed throughout a journey or during transport to show that its contents have not been tampered with. Once fixed such seals can only be removed by destroying them. A padlock-type security seal () includes a recess () in its body () accessible from the front face which houses a locking collet (). The collet (), in use, locks the leading end () of the hasp () of the seal () into the body (). A cap () is welded onto the body () to close the recess () and seal the collet () into the body (). Preferably, the body () of the padlock-type seal is chosen to be a color which will give a good contrast with a barcode () applied to it. The color of the cap () can vary from that of the body () to enable an audit trail of the seals ().

A tamper resistant seal comprises a series of ratchet teeth (,) arranged along a strap (,), with one end of the strap (,) being secured to a body (,) and the other end of the strap (,) being insertable into the body (,) so as to move the ratchet teeth (,) sequentially past a resiliently deformable catch (,), wherein the resiliently deformable catch (,) includes a pair of opposed jaws (,) which are movable laterally primarily with a vise-like or spelling action rather than a collet-like or flexing action.

Tamper resistant seal

Recovery of floating liquid

A tamperproof shackle seal comprising: a strap, a plug at one end of the strap, a housing at the other end of the strap, and a socket embedded within the housing; the strap, the plug and the housing having been integrally formed of a plastics material, and the socket having been separately formed of a plastics material; the plug including a leading end and a shoulder which faces away from said leading end; the housing having a sleeve-like wall which is integrally closed around the socket apart from at an open mouth; and the socket defining a cavity which is closed, apart from at an open entrance in alignment with said open mouth, with at least one resiliently deflectable portion of the socket protruding into said cavity; whereby, in use, said at least one resiliently deflectable portion flexes to permit insertion of the plug into the socket, and then abuts said shoulder to hold the plug captive in the socket.

Tamperproof shackle seals

The system comprises an at least partially threaded male member of plastics material including one or more first discontinuities, such as a bolt with a plurality of substantially rigid webs between portions of a helical rib thereon, and an at least partially threaded female member of plastics material including one or more second discontinuities, such as a nut with a resiliently deflectable tongue whose free end is located beyond one end of the helical rib therein. Threaded advance of the male member, relative to the female member, causes deflection and resilient return of the first and/or second discontinuities as they pass one another, such as deflection and resilient return of the tongue as it passes each of the webs, to give an audible click and an abrupt change in drive torque or other tangible indication of the extent of said threaded advance.

Threaded fastening systems

Twisting fastener

A cable clamp which is a one piece plastics moulding, grips by two pairs of wings, and independently resists both pushing and pulling of the cable because the two pairs incline in opposite directions. The cable is slid along the gripping edges of the wings when being applied to the clamp, and the wings do not bend or crimp the cable. The clamp can have an integral closeable lid and a fastener for anchoring to an apertured support.

Growing community of inventors

Berkshire, United Kingdom

David Austin Burt