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. 24, 2004
Filed:
Apr. 12, 2002
Applicant:
Inventors:
Hitoshi Mutai, Nagano, JP;
Yoshiaki Koshida, Nagano, JP;
Assignee:
Sankyo Seiki Mfg. Co., Ltd., Nagano, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 5/55 ; F16H 5/704 ;
U.S. Cl.
CPC ...
G11B 5/55 ; F16H 5/704 ;
Abstract
A motor is disclosed comprising a motor case and a rotating shaft for the motor having a portion within the motor case and a portion extending outside of the motor case. A feed screw is formed on the extending portion of the rotating shaft. The feed screw threadedly engages with a moving body which moves back and forth along an axial direction of the rotating shaft. The feed screw has a threaded portion, a top portion of this threaded portion being provided with a concavity to store lubricating oil.