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:
May. 15, 1990
Filed:
Mar. 16, 1989
Applicant:
Inventors:
Takanori Suzuki, Iwata, JP;
Kazuyoshi Takada, Iwata, JP;
Assignee:
Yamaha Hatsudoki Kabushiki Kaisha, Iwata, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16H / ;
U.S. Cl.
CPC ...
474135 ;
Abstract
A garden tractor or lawn mower including a belt driven mower blade and an improved tensioning arrangement for the driving belt. The tensioner mechanism provides a first range of tensioning during normal driving loads and a second, more rigid range of tensioning when abnormal loads are encountered so as to reduce belt wear but insure that the belt will not jump off of the driving or driven pulleys.