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:
Nov. 28, 1978
Filed:
Sep. 09, 1977
Applicant:
Inventors:
Albert B Walulik, Cranford, NJ (US);
John G Charney, Colonia, NJ (US);
Donald A Turk, Sewaren, NJ (US);
Raymond D Lewandowski, New Providence, NJ (US);
Charles G Pickett, North Plainfield, NJ (US);
Assignee:
Purolator, Inc., Rahway, NJ (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
210130 ; 210168 ; 210440 ;
Abstract
A filter relief valve assembly for a simple, easy to assemble use with filter structures of the common oil filter throw away type which will function to permit oil bypass of the filter element whenever the fluid pressure exceeds a predetermined value. The assembly unit is complete unto itself, but when assembled with the other filter components support and center one end of the filter element and also center and align an associated check valve in cooperation with the filter end closure.