Closure assemblies

Details Closure assemblies Closure assemblies

1987-07-13

1989-03-07

Marcus, Stephen

Receptacles

Closures

Removable closure guided in rotary movement

220DIG33, B65D 4104

Patent

active

048098698

ABSTRACT:
A closure assembly, such as a filter cap for a vehicle's fuel tank, comprises a first member formed with a circumferentially arranged series of ratchet teeth, and a second member associated with a pair of pawls, the pawls being continuously urged linearly apart from one another by spring means located between their adjacent ends so that their ends remote from the spring means, which remote ends may each be formed with a plurality of ratchet teeth, are continuously urged into gaps defined between the ratchet teeth formed upon the first member, whereby application of torque to the second member in one rotary sense is initially transmitted by means of the pawls so as to rotate the first member in conjunction therewith until the torque exceeds a predetermined level, whereupon the pawls ride over the ratchet teeth formed upon the first member and the second member is rotated relative to the first member, whereas application of torque to the second member in the opposite rotary sense is always transmitted by means of the pawls so as to rotate the first member in conjunction therewith.

REFERENCES:
patent: 3666137 (1972-05-01), Blau et al.
patent: 3667642 (1972-06-01), Blau et al.
patent: 3715075 (1973-02-01), Blau et al.
patent: 3986634 (1976-10-01), Smith et al.
patent: 4091955 (1978-05-01), Sloan, Sr.
patent: 4294376 (1981-10-01), Keller
patent: 4299102 (1981-11-01), Aro
patent: 4494673 (1985-01-01), Hiraishi
patent: 4676393 (1987-06-01), Daniel

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