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:
May. 04, 1999
Filed:
May. 15, 1997
Hiroshi Kanou, Gunma, JP;
Shigemi Shimizu, Gunma, JP;
Sanden Corporation, Gunma, JP;
Abstract
A piston type compressor comprises a compressor housing enclosing a crank chamber, suction chamber, and a discharge chamber therein. A plurality of pistons are slidably disposed within each of cylinders formed in a cylinder block. Each of the pistons includes a piston head, a piston end, a main cylindrical body and an engaging portion at the piston end axially extending from the cylindrical body. A first aperture is formed in the cylindrical body of the piston, so that the first aperture is near the piston head of the piston. A second aperture is formed in the cylindrical body of the piston so that the second aperture is near the piston end of the piston. The first aperture is positioned within the cylinder bore when the piston reciprocates in the cylinder bore. As a result, the piston type compressor of the present invention has a light weight piston which simultaneously reduces abrasion between the piston and the cylinder bore and reduces noise and vibration.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile