Ships – Hull or hull adjunct employing fluid dynamic forces to... – Having fluid channeling or entrapping configuration
Reexamination Certificate
2006-01-10
2006-01-10
Olson, Lars A. (Department: 3617)
Ships
Hull or hull adjunct employing fluid dynamic forces to...
Having fluid channeling or entrapping configuration
C114S291000, C440S08900C
Reexamination Certificate
active
06983713
ABSTRACT:
A watercraft with a propulsion engine includes at least one hull having an underside. A dual exhaust system includes a first exhaust conduit defining a first exhaust flow path leading to the underside (e.g., a step in a planing surface on the underside) and a second exhaust conduit defining a second exhaust flow path to atmosphere. One embodiment is self proportioning. In another embodiment, an onboard proportioning system varies first and second proportions of the exhaust flowing through respective ones of the first and second exhaust conduits according to exhaust back pressure. First and second valve mechanisms selectively restrict the first and second exhaust flow paths under computer or manual control according to pressure sensed by a back-pressure-sensing component in order to thereby direct the exhaust in desired proportions for enhanced operating characteristics and reduced thermal signature.
REFERENCES:
patent: 3091206 (1963-05-01), Cale
patent: 3316874 (1967-05-01), Canazzi
patent: 3371645 (1968-03-01), Ward
patent: 3455267 (1969-07-01), Tucker
patent: 4231314 (1980-11-01), Peters
patent: 4393802 (1983-07-01), Rizzo
patent: 4587918 (1986-05-01), Burg
patent: 4649851 (1987-03-01), April
patent: 4840589 (1989-06-01), Breaux
patent: 4926771 (1990-05-01), Hull
patent: 4989534 (1991-02-01), Field
patent: 5505644 (1996-04-01), Ousley et al.
patent: 5685253 (1997-11-01), Alexander, Jr.
patent: 5980343 (1999-11-01), Rolinski
patent: 6250245 (2001-06-01), Robinson et al.
patent: 6314903 (2001-11-01), Robinson et al.
patent: 6526903 (2003-03-01), Robinson et al.
Burns, III William F.
Robinson Charles W.
Hanson Loyal McKinley
M Ship Co., LLC.
Olson Lars A.
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