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:
Apr. 03, 1990
Filed:
Feb. 15, 1989
Applicant:
Inventors:
Assignee:
Sanyo Electric Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G05G / ; F01B / ;
U.S. Cl.
CPC ...
7457 / ; 7457 / ; 92160 ; 1231 / ;
Abstract
A piston assembly for compressors wherein a piston is connected to a crankshaft by a connecting rod having a ball at its one end, the ball being, with the rear portion thereof, joined to the piston by clamping a clamp portion provided on the piston, while the front portion of the ball is in contact with a ball seat formed in the inner portion of the piston, the crankshaft being formed at its upper end with an oil outlet for scattering an oil upon ejection therefrom, the piston assembly being characterized in that a plurality of holes are formed in the clamp portion, the piston having a skirt portion formed with a plurality of holes opposed to the respective holes.