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:
Apr. 07, 1981
Filed:
May. 11, 1978
Applicant:
Inventor:
Michael J Hawker, Lincoln, GB;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B60T / ;
U.S. Cl.
CPC ...
303 52 ; 303 54 ;
Abstract
Spool type brake valve for use in motor vehicle braking systems. The valve has an exhaust valve assembly and an inlet valve assembly. The former having a spool displaceable by a brake pedal or the like to disconnect the brake-port from an exhaust port and the latter having a spool movable within a sleeve upon subsequent displacement of the exhaust valve to supply pressure fluid to the brake port.
Quick Actions:
Hawker, Michael. (1981). Spool type brake valves (U.S. Patent No. 4260197). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4260197
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile