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NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
---|---|
국제특허분류(IPC7판) |
|
출원번호 | US-0427749 (1995-04-24) |
발명자 / 주소 |
|
인용정보 | 피인용 횟수 : 6 인용 특허 : 0 |
Apparatus for further improving the efficiency of a propulsion unit having a driveshaft depending from the stern of a boat, while protecting flora and fauna in the water as well as the propulsion unit. A plate member has an upper end adapted to be positioned forward of a driveshaft housing, and to d
Apparatus for a driveshaft housing of a boat propulusion unit for protecting swimming creatures, sea grass and the like in the water from the housing and associated propeller and for protecting the housing and the propeller from objects in the water, while improving the efficiency of the propulsion
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