Invention Grant
- Patent Title: Helical marine strut
- Patent Title (中): 螺旋海洋支柱
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Application No.: US11875208Application Date: 2007-10-19
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Publication No.: US07798875B1Publication Date: 2010-09-21
- Inventor: Bruce A. Angel , Glenn Lyle Spain
- Applicant: Bruce A. Angel , Glenn Lyle Spain
- Applicant Address: US IL Lake Forest
- Assignee: Brunswick Corporation
- Current Assignee: Brunswick Corporation
- Current Assignee Address: US IL Lake Forest
- Agency: Malin Haley DiMaggio Bowen & Lhota, P.A.
- Main IPC: B63H5/10
- IPC: B63H5/10

Abstract:
A support for a marine motor propeller shaft comprising a single leg having an upper section attached to the hull of a boat and a lower section supporting a propeller shaft. The leg has an angled helical twist near the upper section such that the propeller support is angled away from the centerline of the hull and faces the flow vector of inflowing water to the propeller. The angle of the helical twist is determined by analyzing the flow dynamics of water entering the propeller to determine peak fluid flow.
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