Patent · US Active

Marine propulsion device and methods of making marine propulsion device having impact protection

US11603179B2 · kind B2 · utility

11Cited by

54References

20Claims

0Family size

Assignee

Brunswick Corporation · US

Inventors

Randall J. Poirier · Fond du Lac, US
Wayne M. Jaszewski · Sparta, US
Jeremy J. Kraus · Calvary, US
Derek J. Fletcher · Oshkosh, US

Key dates

Filing date	Jul 8, 2021
Grant date	Mar 14, 2023
Priority date	—
Expiry date	Aug 4, 2041

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB63H2025/425
WIPO fieldTransport
WIPO sectorMechanical engineering

Abstract

A propulsion device for a marine vessel. A base is configured to be coupled to the marine vessel. A shaft includes an upper segment and a lower segment each extending along a length axis, wherein the upper segment is coupled to the base. A propulsor is coupled to the lower segment, where the propulsor is configured to propel the marine vessel in water. A shock absorber includes a resilient member that resiliently couples the upper segment and the lower segment together, where the resilient member dampens impact forces received at the lower segment and reduces transfer of the impact forces to the upper segment.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.