Covers for boat blades of propellers of in-board a

专利名称：Covers for boat blades of propellers of in-board and outboard boat motors

发明人：Jack R. Doelcher申请号：US08/374199申请日：19950118公开号：US05527193A公开日：19960618

摘要：The invention relates to hand-insertable, rigid plastic cover for use with anindividual boat blade of a propeller of an in-board or outboard boat motor wherein eachcover of the invention is integrally formed as a single unit using of a conventional plasticmaterial such as polyethylene. Briefly, the plastic cover of the invention comprises a pairof broad side walls of a tear-dropped or elliptically shape placed in a side-by- siderelationship and terminating at a U-shaped closed edge or end wall but being open at aconcavely formed, transverse open top to permit easily insertion over the leading andtrailing edges of each blade. The shape of the broad side walls, the use of a U-shapedclosed edge, the capability of the side walls to outwardly flex for insertion over the crosssection of the blade, and the use of a rigid plastic such as polyethylene, permits the coverto be pushed over the blade from a position exterior of the leading and trailing edges ofthe blade using a section of the closed edge as the push region for the user's hand. Dueto the sufficient stiffness provided by the invention, the cover can then be easily andsafely advanced by the user to move the cover over the broad surfaces of the blade sothat at least 80% of the leading and trailing edges of the blade are covered.

申请人：DOELCHER; JACK R.

代理人：Harold D. Messner

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