Marine propulsion – Screw propeller – Propeller guard
Reexamination Certificate
2009-12-10
2011-12-06
Olson, Lars A (Department: 3617)
Marine propulsion
Screw propeller
Propeller guard
C114S361000, C440S113000
Reexamination Certificate
active
08070541
ABSTRACT:
A protective system for underwater installation on the propeller of a boat inhibits marine growth from fouling the propeller. The system includes a flexible material sized and shaped so as to be capable of enclosing the propeller. A member such as a clamp or clip maintains the flexible material in a state enclosing the propeller. The system further includes a link (such as a piece of line) having one end attached to the member and/or the flexible material and a free second end. The link is of sufficient length such that when the flexible material is installed about the propeller the free end of the link extends to a location proximate to the boat at or above the waterline of the boat (such as to the transom or deck of the boat, or to a dock against which the boat is tied) wherein the link can be retrieved by a user of the boat. A tug on the link by the user releases the flexible material from the propeller permitting the retrieval of the link, the member and the flexible material as a unit from the propeller without the aid of a diver.
REFERENCES:
patent: 3220374 (1965-11-01), Sloan
patent: 3587508 (1971-06-01), Pearce
patent: 3993016 (1976-11-01), Pulaski
patent: 4826461 (1989-05-01), Newman
patent: 5273399 (1993-12-01), Ojeda
patent: 5315949 (1994-05-01), Bradley
patent: 5527193 (1996-06-01), Doelcher
patent: 5964174 (1999-10-01), Coggan
patent: 6152064 (2000-11-01), Morton
patent: 6190220 (2001-02-01), Borrelli
patent: 6916217 (2005-07-01), Crepeau
patent: 7244153 (2007-07-01), Lobrovich
McDonnell Boehnen & Hulbert & Berghoff LLP
Olson Lars A
LandOfFree
Underwater protective system to inhibit marine growth does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Underwater protective system to inhibit marine growth, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Underwater protective system to inhibit marine growth will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4294335