Torque override threaded locking cap

Details Torque override threaded locking cap Torque override threaded locking cap

1979-05-21

1981-07-28

Lyddane, William E.

Locks

Special application

For closures

220210, B65D 5116, B65D 5514

Patent

active

042803462

ABSTRACT:
A locking cap for a threaded filler neck includes a closure member for engaging and closing the neck, a shell providing a hand grip and including a key-actuable lock, and a race disposed for rotation between the shell and closure. The race includes axially inwardly opening pockets, and the closure includes flexible pawl fingers for engaging the pockets to provide a driving connection between the closure and race which is positive in the cap-removal direction and torque-limited in the cap-advancing direction. The race also includes a set of peripherally spaced, radially inwardly projecting teeth, and the shell is molded to provide a pair of flexible drive fingers for engaging the peripherally spaced and radially inwardly projecting teeth to provide a driving connection between the shell and race which is positive in the cap-advancing direction and torque-limited in the cap-removal direction for free ratcheting of the cap when it is in position on the filler neck and locked. A lock-controlled bolt member mounted for rotation with the shell is movable by the lock to a cap-removal position. The bolt member engages driving teeth provided within the closure member. The driving teeth are formed such that rotation of the shell in the cap-advancing direction, after the lock has been returned to the cap-locking position, cams the bolt out of engagement with the driving teeth.

REFERENCES:
patent: 1701816 (1929-02-01), Malluk et al.
patent: 1702205 (1929-02-01), Freedman
patent: 4000633 (1977-01-01), Evans
patent: 4083209 (1978-04-01), Sloan, Jr.
patent: 4107961 (1978-08-01), Evans
patent: 4132091 (1979-01-01), Aro et al.

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