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:
Oct. 19, 1976
Filed:
Feb. 24, 1975
Thomas A McLauchlan, Vancouver, CA;
Canadian Patents and Development Limited, Ottawa, CA;
Abstract
A tree cross-cutting blade has plurality of wedge-shaped ribs on the upper surface of and integral with the shear blade. The wedge-shaped ribs extend rearwardly from a bevelled cutting edge of the shear blade and distribute any splitting of the wood, due for example to a tree being frozen across the width of the tree and thus reduce the damage by splitting in a lengthwise direction along the tree. The wedge-shaped ribs may be curved, if the cutting blade cuts along an arcuate path, or straight if cutting is along a straight path. Two such tree cross-cutting blades may be used to cut a tree between them or one used to cut a tree against an anvil. If one is used to cut a tree against an anvil the shear blade may taper to increase in thickness away from the bevelled cutting edge to fell a tree in the cutting direction. The wedge-shaped ribs have pointed leading ends and are preferably triangular in cross-section.