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:
Mar. 24, 1987
Filed:
Jun. 13, 1985
Applicant:
Inventor:
William Rose, McMinnville, OR (US);
Assignee:
Other;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E02F / ; E02F / ;
U.S. Cl.
CPC ...
3719 / ; 3719 / ; 37 96 ;
Abstract
A trench-digging chain mountable on a chain saw with no more than minor modification of shielding includes high, narrow cutters on the side of the chain closer to the engine and clutch of the chain saw power unit and low, wide carrier teeth on the opposite side of the chain. The narrow width permits installation of the chain in the clearance normally provided between a drive sprocket and the engine. The carrier teeth include a surface which is approximately horizontal during use, to carry material upwardly out of a trench being dug. Intermediate links include roots to be driven by the drive sprocket and slide in the peripheral guide channel of the saw bar.