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. 29, 2003
Filed:
Oct. 24, 2001
Applicant:
Inventors:
Benny Hedlund, Hono, SE;
Mikael Asberg, Torslanda, SE;
Assignee:
AB Volvo Penta, Gothenburg, SE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B63H 5/125 ;
U.S. Cl.
CPC ...
B63H 5/125 ;
Abstract
An hydraulic installation in a boat hull for swinging a properller rig pivotably suspended in a shell on a boat transom using a piston-cylinder device arranged in a hydraulic control circuit. A control valve included in the hydraulic circuit for controlling the flow to and from the hydraulic cylinder is sealingly mounted in a through-opening in the shell, so that one side of the valve faces outwardly towards the propeller rig in order to be subjected to water spray during driving and serve as an oil cooler.