Low permeation cam lock for plastic fuel tank vapor vent valve

Details Low permeation cam lock for plastic fuel tank vapor vent valve Low permeation cam lock for plastic fuel tank vapor vent valve

B - Operations, Transporting

60

K

B60K 15/035 (2006.01)

Patent

CA 2411079

A vapor vent valve has an annular locking ring received thereover, with surfaces thereon engaging the valve for limited axial movement therebetween and preventing relative rotation therebetween. A fuel tank has an access opening with a slit formed therein. The valve is inserted in the access opening and the end of the locking ring engaged in the slit, rotation of the valve causes the locking ring to feed completely through the slit to the interior of the tank and engages the inner surface thereof while continuing to engage the valve to retain and seal the valve in the access opening. The valve, locking ring and a seal ring may be pre-assembled to form a subassembly capable of being installed and locked on the fuel tank as a unit without the need for tools or fasteners.

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