Push-on fuel cap

A cap engageable with a filler neck having a mouth and a seal seat disposed axially inwardly from said mouth internally in said filler neck, the cap comprising

• means for closing the filler neck, the closure means including an end closure member and means for establishing a seal between the end closure member and the seal seat,
• a housing movably coupled to the closure means, the housing being sized to extend into the filler neck through the mouth and formed to include a cylindrical wall having an aperture, and
• means for gripping the filler neck in response to the pushing of the seal establishing means against the seal seat establishing a liquid fuel and vapor seal therebetween, the gripping means being formed for movement between a filler neck-engaging position and a filler neck-disengaging position and mounted in the housing, the gripping means including a latch and means for snapping the latch through the aperture for engagement with the filler neck.

A cap engageable with a filler neck having a mouth and a seal seat disposed axially inwardly from said mouth internally in said neck, the cap comprising

• means for closing the filler neck, the closure means including a housing and means for establishing a seal on the seal seat, the seal means being coupled to the housing for axial movement therewith relative to the filler neck,
• means for gripping the filler neck in response to the pushing of the housing into the mouth of the filler neck, the gripping means being mounted in the housing for movement between a filler neck-engaging position and a filler neck-disengaging position, and
• means for moving the gripping means from the filler neck-engaging position to the filler neck-disengaging position.

A cap engageable with a filler neck having a mouth and a seal seat disposed axially inwardly from said mouth internally in said filler neck, the cap comprising

• means for closing the mouth of the filler neck, the closing means including a housing and an end closure member coupled to the housing, the end closure member being axially movable relative to the housing and having a sealing ring configured to engage the seal seat upon slidable insertion of the housing into the filler neck in an axially inward cap-installation direction,
• means for gripping the filler neck in response to sliding axially inward movement of the housing in the filler neck, the gripping means being formed for movement between a filler neck-engaging position and a filler neck-disengaging position and mounted in the housing, the gripping means including three spring-loaded latches positioned in spaced-apart relation about the circumference of the housing, and
• means for moving the three latches from the filler neck-engaging position to the filler neck-disengaging position, the moving means including a handle cover and means for coupling the handle cover to the three spring-loaded latches so that the latches are rotatably actuated in response to rotational movement of the handle cover relative to the filler neck.