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:
Jun. 01, 1976
Filed:
Apr. 17, 1972
Applicant:
Inventor:
Walter Robert Stirling, Buxton, EN;
Assignee:
Ferodo Limited, Manchester, EN;
Primary Examiner:
Int. Cl.
CPC ...
F16D / ;
U.S. Cl.
CPC ...
1882 / ; 1882 / ; 1882 / ; 188271 ; 1921 / ;
Abstract
In a vehicle retarder system having a retarder with discs working in oil which is continuously circulated by a pump, a tapping is taken from the oil circuit upstream of a variable but never wholly closed valve to supply oil to an actuator of the retarder. When retardation is required, the valve is partly closed to increase the pressure in the tapping and so to actuate the retarder, while the flow of cooling oil through the retarder continues.
Stirling, Walter. (1976). Vehicle retarders (U.S. Patent No. 3960249). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/3960249
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile