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:
Jun. 20, 1989
Filed:
Sep. 11, 1987
Applicant:
Inventor:
Lennart H Brandt, Fjar.ang.s, SE;
Assignee:
AB Volvo Penta, Gothenburg, SE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B63H / ;
U.S. Cl.
CPC ...
440 78 ; 440 81 ;
Abstract
A double-propeller drive unit for boats, in which the under-water housing of the drive unit is designed so that the pressure center for the transverse force on the drive housing caused by water flow is located in front of the steering axis of the drive unit.