Locking fuel cap

Details Locking fuel cap Locking fuel cap

1982-07-02

1984-12-04

Smith, Gary L.

Locks

Special application

For closures

220210, B65D 5514

Patent

active

044856474

ABSTRACT:
A locking fuel cap has a handgripping shell that is selectively connected to a threaded closure through a lock mechanism and a torque limiting mechanism. The torque limiting mechanism is operable to limit torque in the closing direction. The lock mechanism has a key actuated latch member which is engageable with a drive finger to align the drive finger with cooperating drive surfaces on the torque limiting mechanism when the fuel cap is unlocked. The latch mechanism maintains the drive finger aligned when the key is operated to the lock position until the fuel cap is installed. The latch mechanism is released by the drive finger engaging the drive surface during such installation so that the drive finger can return to the unaligned position if removal of the fuel cap is attempted while the lock mechanism is in the locked position.

REFERENCES:
patent: 4083209 (1978-04-01), Sloan, Jr.
patent: 4107960 (1978-08-01), Neiman
patent: 4132091 (1979-01-01), Aro et al.
patent: 4280346 (1981-07-01), Evans
patent: 4280347 (1981-07-01), Evans
patent: 4299102 (1981-11-01), Aro
patent: 4342208 (1982-08-01), Evans

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