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:
Feb. 12, 1991
Filed:
Jul. 28, 1989
Applicant:
Inventor:
Robert K Watson, Ridgetown, Ontario, CA;
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B63H / ;
U.S. Cl.
CPC ...
440 75 ; 474101 ; 474111 ;
Abstract
In a propeller driven outboard or inboard-outboard marine motor, the typical transmission comprising a transmission shaft coupled to the propeller shaft by bevel gears is replaced by a chain drive between the propeller shaft and a parallel output shaft coupled to the power plant of the motor. Torque is applied to the chain drive through a torque dependent variable pulley coupled by a belt to a speed dependent variable pulley which allow for a variable gear ratio. A chain tensioning means maintains tension on the chain.