Fuel cap with high sealing properties

Details Fuel cap with high sealing properties Fuel cap with high sealing properties

2004-11-15

2009-02-03

Stashick, Anthony D (Department: 3781)

Receptacles

Closures

Removable closure guided in rotary movement

C220S293000, C220S303000, C220SDIG033, C277S647000

Reexamination Certificate

active

07484636

ABSTRACT:
A fuel cap comprising a closure unit adapted to be fitted into an opening of a filler neck having ridges formed on its inner side face intermittently in the circumferential direction, so that it may be secured to the filler neck by engaging with the ridges during a turning operation. The closure unit includes a closure body, a seal ring, a turning control sleeve, a sliding sleeve, a base and a coil spring. The amount of the spacing formed between the lower end of the sliding sleeve and the base is set smaller than an amount of the downward sliding of the sliding sleeve, which is caused when the engagement protrusions formed on the outer side face of the sliding sleeve slip into lower face of the ridges formed on the inner side face of the filler neck.

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