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. 29, 1986
Filed:
Jul. 09, 1984
Applicant:
Inventors:
Laurence M Grills, Mission Viejo, CA (US);
Eugene F Colditz, Huntington Beach, CA (US);
Assignee:
Kaiser Aerospace & Electronics Corp., Oakland, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E03D / ;
U.S. Cl.
CPC ...
4378 ; 4321 ; 4323 ; 4400 ; 4407 ; 251144 ; 251294 ;
Abstract
A hydraulically operated drain valve is interposed in the cleaning fluid path before the spray/rinse outlet. The fluid under pressure activates a piston which operates the drain valve. A precharge reservoir is also interposed in the supply line before the spray rinse outlet to store a measured precharge which drains into the tank after the drain valve has closed. A manual override is provided to open the drain valve in the event of a failure of the hydraulic system.