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. 18, 2000
Filed:
Oct. 02, 1997
Applicant:
Inventors:
Eugene E Calkins, Keizer, OR (US);
Kent L Huntington, Molalla, OR (US);
Mark D Lamey, Gresham, OR (US);
Assignee:
Blount, Inc., Portland, OR (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B27B / ;
U.S. Cl.
CPC ...
30386 ; 30383 ;
Abstract
A chain saw guide bar has self-contained mechanism to force movement of the guide bar away from a drive sprocket to tension the saw chain. The mechanism includes a bearing surface that engages a mounting stud on the chain saw housing and a rotatable portion which upon rotation causes axial displacement of the bearing surface in contact with the stud.