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. 29, 1994
Filed:
Mar. 25, 1993
Takuya Hirayama, Kanagawa, JP;
Toshiya Yajima, Kanagawa, JP;
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Abstract
A fluid compressor with bearing means disposed inside a rotary member includes a cylinder having an inner circumferential surface therein; supporting means for rotatably supporting both ends of the cylinder; a rotary member arranged in the cylinder so as to extend in the axial direction of the cylinder and be eccentric thereto, the rotary member having a spiral groove formed on an outer circumferential surface thereof, the spiral groove having pitches gradually narrowing with a distance from a suction-side end to a discharge-side end of the cylinder; a spiral blade fitted in the spiral groove so as to be slidable in the radial direction of the rotary member; and drive unit for rotating the cylinder and the rotary member, wherein the supporting member is characterized in that the supporting member is extended inwardly the rotary member from a base portion fixed to the case.