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. 17, 1987
Filed:
Jun. 02, 1986
Applicant:
Inventor:
Donald J MacGavin, Portland, OR (US);
Assignee:
Omark Industries, Inc., Portland, OR (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B27B / ;
U.S. Cl.
CPC ...
83830 ; 83834 ;
Abstract
A saw chain length including articulated alternating center drive links and side links. Cutting links provide certain of the side links and a safety side link precedes each cutting link. The safety side link and its opposing tie strap link have shaved heel portions and thereby are raised off the guide bar when normally tensioned around the guide bar. The safety link is configured whereby engagement thereof by material being cut during a cutting operation induces pivoting of the safety link against the opposing tension force, which tension force thereby absorbs the impact prior to said heel portions engaging the guide bar edge.