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:
Jan. 31, 1984
Filed:
Mar. 01, 1982
Edward H Warwick, Englewood, OH (US);
Donald L Parker, Middletown, OH (US);
General Motors Corporation, Detroit, MI (US);
Abstract
A small take-up piston moves outward during the first increment of hydraulic pressure, taking up the clearance with low fluid displacement because of small size of this piston. As a predetermined pressure level is reached, the take-up and power pistons are locked together and thereafter both pistons move outwardly in unison. This greatly reduces the displacement over a single stage piston traveling the same distance. It allows additional retractive clearance without commensurate displacement required to reactuate the caliper.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile