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:
May. 12, 1987
Filed:
Mar. 19, 1984
Applicant:
Inventor:
Robert B Janvrin, Climax, MI (US);
Assignee:
General Signal Corporation, Stamford, CT (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F15B / ; F15B / ;
U.S. Cl.
CPC ...
91420 ; 91448 ; 137523 ;
Abstract
An improved sequence-and-relief valve comprises a housing (60), a plurality of conduits (42/44, 46, 53) opening into a bore (62) within the housing, a valve cartridge (64) with the bore, the valve cartridge having a central bore (66) in which a valve element (76) may be moved into and out of contact with seat (74) to control flow from a cylinder port (70) to a tank port (72) in response to changes in pressure acting at pump port (68) or at cylinder port (70). See FIG. 2.