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. 05, 1977
Filed:
Jul. 01, 1976
Applicant:
Inventors:
Donald James Parquet, Burlington, IA (US);
Carl Oluf Pedersen, Burlington, IA (US);
Assignee:
J. I. Case Company, Racine, WI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
210 90 ; 210103 ; 210132 ; 210149 ; 210340 ;
Abstract
A dual oil filter automatic switching system incorporating two oil filters and a switching oil valve and an oil pump, all connected together. The system also includes electric means incorporating a differential pressure switch and a latching relay, and an electric signal and an electrically-operative temperature switch are also disclosed. The oil valve is electrically responsive to the electric switching, and the valve directs the oil to either or both of the filters.