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:
Dec. 29, 1992
Filed:
Jun. 22, 1989
Applicant:
Inventor:
Masatoshi Takeshita, Iwata, JP;
Assignee:
Yamaha Hatsudoki Kabushiki Kaisha, Shizuoka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E01H / ;
U.S. Cl.
CPC ...
37258 ; 37248 ;
Abstract
A snow thrower incorporating a device fixed relative to the auger housing around the auger shaft for generating a downward thrust on the auger shaft which opposes and balances the upward thrust caused on the auger shaft by the cooperation of the auger with the snow. The downward thrust is provided by shaping a portion of the housing for the drive of the auger shaft in such a way so as to create a static downward thrust.