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:
Jul. 27, 1976
Filed:
Jun. 17, 1974
Applicant:
Inventor:
Vernon Kenneth Quarve, Minneapolis, MN (US);
Assignee:
Graco Inc., Minneapolis, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16K / ;
U.S. Cl.
CPC ...
137462 ; 137464 ;
Abstract
Apparatus for controlling the flow of fluid in pressurized lines; and for closing a valve and stopping said flow whenever downstream pressure drops below a predetermined value, is disclosed. The apparatus comprises a manually-operated valve for starting fluid flow and a spring-biased sequencing valve for stopping fluid flow, with fluid channels connecting the manual valve with the sequencing valve.