B - Operations – Transporting – 65 – D
Patent
B - Operations, Transporting
65
D
206/48, 206/58
B65D 39/08 (2006.01)
Patent
CA 1137447
Abstract of the Disclosure A threaded fuel tank filler neck cap of the type including a closure member for insertion into the filler neck to close it, a gasket for sealing against the lip formed at the axially outer end of the filler neck and a shell providing a hand grip. The shell and closure member are connected by cooperating pawl teeth and ratchet teeth to provide a driving connection between the shell and the closure in the cap-removal direction and a torque-limited driving connection between the shell and closure in the cap-advancing direction to protect the gasket against damage due to overtightening. Pawl fingers extend radially from a radially inwardly facing wall of the shell and generally concentrically with the radially inwardly facing wall to support the pawl teeth in engagement with the ratchet teeth. Each pawl tooth includes a first generally radially and axially extending locking surface and a second generally chordally and axially extending torque-override surface. Each ratchet tooth includes a generally radially and axially extending locking surface cooperating with the locking surface of at least one of the pawl teeth to establish the driving connection in the cap-removal direction, and a generally chordally and axially extending torque-override surface cooperating with at least one of the pawl teeth to establish the torque-limited driving connection in the cap-advancing direction.
369918
Smart & Biggar
Stant Inc.
LandOfFree
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