F - Mech Eng,Light,Heat,Weapons – 16 – K
Patent
F - Mech Eng,Light,Heat,Weapons
16
K
137/57
F16K 17/36 (2006.01) B60K 15/04 (2006.01)
Patent
CA 1283020
ABSTRACT OF THE DISCLOSURE A fuel cap having a pressure-vacuum valve assembly for sealing a vehicle fuel tank is provided. The cap has a normally closed vent to vent the fuel tank, with a first valve member to open the vent when the pressure within the tank reaches a predetermined superatmospheric level. The cap also has a second valve member to open the vent when the pressure within the tank reaches a predetermined subatmospheric level. The cap includes a roll-over valve disposed above the first and second valve members to close the vent when the vehicle and cap are rolled over to a substantially inverted orientation to prevent fuel from spilling out of the cap.
550068
Crute Billy G.
Smart & Biggar
Stant Inc.
LandOfFree
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