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. 29, 1989
Filed:
Jun. 07, 1988
Applicant:
Inventor:
Hiroshi Fukuhara, Yokohama, JP;
Assignee:
Fukuhara Seisaku Co., Ltd., , JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
210168 ; 184-613 ; 184-624 ; 210171 ; 210172 ; 210194 ; 2104165 ;
Abstract
An oil filter device for an oil tank of a hydraulic device in which a drain opening of the oil tank is connected to the inflow passage of the oil filter device by an oil inflow pipe. An oil suction pipe of an oil pressure pump of an oil circulation system in the hydraulic device is connected to the outflow passage of the oil filter device by an oil return pipe. Further, a flow rate throttle is disposed in a preferred position of the oil return pipe.