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. 05, 1985
Filed:
Oct. 26, 1984
Tadashi Sato, Maebashi, JP;
Masaharu Hiraga, Honjo, JP;
Sanden Corporation, Gunma, JP;
Abstract
A fluid displacement apparatus is disclosed. The apparatus includes a housing having a front end plate, a fixed member and an orbiting piston member. The fixed and orbiting piston members interfit to make a plurality of line contacts to define a sealed off fluid pocket. A driving mechanism, including a drive shaft, is disposed within the housing and is operatively connected to the orbiting piston member to effect the orbital motion of the orbital piston member by the rotation of the drive shaft. The drive shaft is rotatably supported by the front end plate through a bearing. An annular sleeve projecting axially from a front end surface of the front end plate surrounds the drive shaft. A pulley member is fixed on an axial end of the drive shaft which extends from the sleeve and is rotatably supported by the sleeve through a bearing on the outer surface of the sleeve. The drive shaft is thus rotatably supported by the front end plate through two bearings, one within the front end plate and the other on the outer surface of the sleeve.