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:
Aug. 11, 1981
Filed:
Dec. 04, 1978
Applicant:
Inventor:
Arthur E Hirsch, Terre Haute, IN (US);
Assignee:
J. I. Case Company, Racine, WI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01B / ; F15B / ;
U.S. Cl.
CPC ...
91-1 ; 91445 ; 91447 ;
Abstract
A protective fluid system having a fluid pump and a fluid control valve and a fluid protective valve and a fluid motor all connected together. The protective valve is responsive to a loss of pressure in a fluid line, such as when the line breaks, and the valve then closes to avoid the reaction of the fluid motor which may be a powered cylinder assembly under the influence of a load, and thus the load does not fall or otherwise move when the pressure is lost in the cylinder assembly.