The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 07, 1989
Filed:
Jul. 13, 1987
Ronald C Cosgrove, Alton, GB;
Philip Barrowclough, Basingstoke, GB;
ITW, Ltd., Camberley, GB;
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.