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:
Sep. 27, 1983
Filed:
Jan. 05, 1981
Applicant:
Inventor:
Rudolf Brunner, Baldham, DE;
Assignee:
Heilmeier & Weinlein, Munich, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F15B / ;
U.S. Cl.
CPC ...
137596 ; 13759613 ; 13762568 ;
Abstract
An assembly of control valves in which each valve has a piston sliding in the bore of a housing to traverse a neutral position and two control positions; the piston has a flow path therethrough and this flow path is combined with additional ducts or recesses in the piston so that in the neutral position as well as in both control positions the piston provides a through-flow between fluid return connections communicating with the bore.
Brunner, Rudolf. (1983). Control valve (U.S. Patent No. 4406305). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4406305
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile