초록 ▼

A fuel cap is provided for use in a fuel system filler neck having a mouth. The cap includes a closure rotatably engageable with the filler neck to cover the filler neck mouth and formed to include a vent passageway extending therethrough in communication with the filler neck. A valve is supported i

A fuel cap is provided for use in a fuel system filler neck having a mouth. The cap includes a closure rotatably engageable with the filler neck to cover the filler neck mouth and formed to include a vent passageway extending therethrough in communication with the filler neck. A valve is supported in the vent passageway for movement between passageway-opening and passageway-closing positions. The cap further includes a handle shell and a plunger. The handle shell includes a lost-motion drive member positioned to apply a rotation-inducing drive force to the closure upon a predetermined amount of rotation of the handle shell. The plunger is supported in a space between the handle shell and the closure for movement between inactive and valve-actuating positions. The handle shell also includes at least one cam member configured to move the plunger to its valve-actuating position upon rotation of the handle shell in a cap-removal direction, thereby moving the valve to its passageway-opening position before the lost-motion drive member is able to rotate the closure relative to the filler neck.

대표청구항 ▼

A fuel cap for use in a fuel system filler neck having a mouth, the cap comprising means for engaging the filler neck, the engaging means providing a filler neck venting passageway open to the atmosphere, means for normally closing the filler neck venting passageway, means for selectively actuating

A fuel cap for use in a fuel system filler neck having a mouth, the cap comprising means for engaging the filler neck, the engaging means providing a filler neck venting passageway open to the atmosphere, means for normally closing the filler neck venting passageway, means for selectively actuating the closing means to open the filler neck venting passageway, and means for selectively rotating the engaging means relative to the filler neck in at least a cap-removal direction, the rotating means including means for moving the actuating means against the closing means so that the closing means is moved from a passageway-closing position to a passageway-opening position upon rotation of the rotating means in the cap-removal direction prior to rotation of the engaging means.