Locking fuel cap

Details Locking fuel cap Locking fuel cap

1983-04-28

1985-07-09

Wolfe, Robert L.

Locks

Special application

For closures

220210, 70221, B65D 5514

Patent

active

045274061

ABSTRACT:
A locking fuel cap has a lock bolt which is slidably disposed in the cap handle and responsive to a key-operated lock mechanism to selectively drivingly connnect the cap handle to a ratchet ring. The ratchet ring is connected through a torque limiting drive to a threaded closure. When the fuel cap is unlocked, the lock bolt provides a positive drive in both opening and closing directions. If the fuel cap is locked, a spring finger on the lock bolt engages a pin on the lock mechanism when a predetermined torque is present at the ratchet ring during cap installation. The pin holds the lock bolt in a position preventing a drive connection with the ratchet ring thereafter when the cap is rotated in the opening direction.

REFERENCES:
patent: 4000633 (1977-01-01), Evans
patent: 4107961 (1978-08-01), Evans
patent: 4132091 (1979-01-01), Aro
patent: 4280346 (1981-07-01), Evans
patent: 4280347 (1981-07-01), Evans
patent: 4453388 (1984-06-01), Baker

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