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:
Nov. 22, 2011
Filed:
Jun. 08, 2009
Arden A. Anderson, Fond du Lac, WI (US);
Michael P. Mihelich, Fond du Lac, WI (US);
Richard A. Davis, Mequon, WI (US);
Arden A. Anderson, Fond du Lac, WI (US);
Michael P. Mihelich, Fond du Lac, WI (US);
Richard A. Davis, Mequon, WI (US);
Brunswick Corporation, Lake Forest, IL (US);
Abstract
A marine propulsion drive unit is provided with two energy absorbing structures, one comprising a crushable or deformable nose cone or leading edge of a driveshaft housing and the other comprising a frangible interface that allows the drive unit to separate from the hull of a marine vessel. The crushable or deformable nose cone is configured to absorb energy at relatively low impact velocities with submerged structures and the frangible interface is configured to absorb energy and then detach from the hull of the marine vessel at higher impact velocities.