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. 20, 1985
Filed:
Dec. 22, 1982
Duane M Gibson, Milwaukie, OR (US);
Lewis A Scott, Lake Oswego, OR (US);
Omark Industries, Inc., Portland, OR (US);
Abstract
The specification discloses a completely outside sharpenable saw chain of the chisel type in which top plate portions are sharpened on their tops and in which side cutter portions are sharpened on their outer sides. The chain has allochiral cutter teeth each having a top plate portion sloping rearwardly and downwardly and joined along one side edge to a side slitter plate portion sloping rearwardly and inwardly, a bent over shank portion, a body portion and a depth gauge portion, wherein the top plate portion, the side plate portion and the shank portion taken together are generally C-shaped in cross-section. The top plate portion has, at its top, a sharpenable end surface forming a top cutting edge ending in a corner chisel point from which a side cutting edge extends downwardly and rearwardly. The side cutting edge is formed where the sharpenable forward end surface of the side plate portion, oriented toward the outer side of the saw chain, intersects the inner face of said side plate portion. The bottom face of the top plate portion and the inner face of the side plate portion each have a layer of chromium thereon.