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. 23, 1989
Filed:
Feb. 04, 1988
Applicant:
Inventors:
Assignee:
Teac Corporation, , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16H / ;
U.S. Cl.
CPC ...
474903 ; 403244 ; 403368 ;
Abstract
A pulley adapted to be press-fit on a driving shaft has projections having vertex portions with flat surfaces formed on an inner peripheral surface which is defined by a center hole of the pulley. The flat surfaces of the projections make pressing contact with an outer peripheral surface of the driving shaft at a band-shaped contact area (or surface) extending spirally or concentrically along a longitudinal direction of the pulley.