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. 18, 2002
Filed:
Feb. 28, 2001
Carl G. Schott, Fond du Lac, WI (US);
Brunswick Corporation, Lake Forest, IL (US);
Abstract
A control method for controlling a controllable pitch propeller during gear shifting operations monitors the gear selector switch to determine a future or impending gear shifting operation, determines the current pitch setting of a controllable pitch propeller, saves the current pitch setting, moves the blades of the controllable pitch propeller to a minimal or zero pitch setting, implements the gear change operation, and then returns the blades of the controllable pitch propeller to the original setting or the current setting by minimizing the pitch of the blades of the controllable pitch propeller prior to the shifting operation, the impact shock load on the marine propulsion system can be decreased by minimizing the resistance to propeller hub rotation caused by the blades moving through the water.