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:
Feb. 02, 1999
Filed:
Oct. 03, 1996
Applicant:
Inventor:
Arvo Leini, Edsbyn, SE;
Assignee:
Sandvik AB, Sandviken, SE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16H / ; F16H / ; B23D / ;
U.S. Cl.
CPC ...
474161 ; 474152 ; 30384 ; 295272 ; 74 468 ; 4272556 ; 427282 ;
Abstract
A nose sprocket for chain saws includes an inner peripheral surface defining a bearing race, and teeth disposed at an outer peripheral portion of the nose sprocket. Side surfaces of the nose sprocket are provided with a vapor-deposited low-friction coating, except that the inner peripheral surface and a portion of each side surface adjoining the inner peripheral surface are free of the coating.