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:
Apr. 25, 2017
Filed:
Sep. 30, 2014
Applicant:
Ab Volvo Penta, Göteborg, SE;
Inventors:
Emil Hasl, Virginia Beach, VA (US);
William Gremminger, Virginia Beach, VA (US);
Assignee:
AB VOLVO PENTA, Gothenburg, SE;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B63H 5/125 (2006.01); B63H 5/10 (2006.01); B63H 20/02 (2006.01); B63H 20/16 (2006.01);
U.S. Cl.
CPC ...
B63H 5/125 (2013.01); B63H 5/10 (2013.01); B63H 20/16 (2013.01); B63H 2020/025 (2013.01);
Abstract
A tractor-type stern drive for a boat includes a drive housing pivotally attached to the stern of the boat about a steering axis. At least one pulling-type propeller is rotatably mounted to a forward end of the gear casing. The at least one propeller is powered by a vertical drive shaft perpendicular to the propeller shaft axis. The steering axis is offset forward of the drive shaft to help minimize steering torque about the steering axis.