B - Operations – Transporting – 65 – D
Patent
B - Operations, Transporting
65
D
206/11
B65D 39/08 (2006.01) B60K 15/04 (2006.01)
Patent
CA 1091189
ABSTRACT OF DISCLOSURE A gas cap assembly is provided for the filler tube of a vehicle gas tank including a clutch coupling a closure member with a manually graspable control member. A plurality of radially deflectable pawls integral with the closure member and a plurality of protrusions, having surfaces engageable with the pawls, integral with the control member coact in the operation of the clutch. When the cap assembly is screwed onto the filler tube, the radially deflectable pawls are intermittently deflected to allow continuous or 360° relative rotation between the closure member and the control member, if the torque applied to the control member exceeds a predetermined maximum. In this manner, the torque that can be applied to tighten the closure member in the filler tube is limited to the predetermined maximum. When the cap is removed from the filler tube, the pawls engage the surfaces of the protrusions in a manner preventing unrestrictive relative rotation between the closure member and the control member irrespective of the torque applied to the control member; the pawls of the clutch are not deflected by the protrusions when the cap is removed. The cap assembly also includes two valves. An air inlet valve permits air to enter the gas tank as gas is pumped out. A pressure release valve insures against excessive pressure build-up in the tank.
173996
Mccord Corporation
Smart & Biggar
LandOfFree
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