Seal for a joint or juncture – Seal between relatively movable parts – Piston ring or piston ring expander or seat therefor
Reexamination Certificate
2005-12-07
2010-06-15
Cuff, Michael (Department: 3741)
Seal for a joint or juncture
Seal between relatively movable parts
Piston ring or piston ring expander or seat therefor
C277S422000, C277S489000, C123S0650WA
Reexamination Certificate
active
07735834
ABSTRACT:
A two-stroke internal combustion engine having a seal assembly disposed between a piston and a running surface. The seal both lubricates and prevents exhaust of combustion gases. A first element, which ensures gas tightness, is received in a countersunk portion of the running surface. A second element, which ensures oil tightness, is partially embedded into the first element. A biasing element presses the second element against the first element so that the second and third elements are at least partially held within the first element.
REFERENCES:
patent: 1796603 (1931-03-01), Junkers
patent: 1871820 (1932-08-01), Morton
patent: 1959769 (1934-05-01), Simmen
patent: 2182851 (1939-12-01), Muchnic
patent: 2968501 (1961-01-01), Tisch
patent: 3095204 (1963-06-01), Neely
patent: 3418001 (1968-12-01), Rentschler et al.
patent: 3456952 (1969-07-01), Mayhew et al.
patent: 3604716 (1971-09-01), Webert
patent: 3645542 (1972-02-01), Adams
patent: 3723200 (1973-03-01), Castrucci et al.
patent: 3848880 (1974-11-01), Tanner
patent: 4121838 (1978-10-01), Sakamaki
patent: 4681817 (1987-07-01), Shinada
patent: 4848212 (1989-07-01), Kawano et al.
patent: 4969425 (1990-11-01), Slee
patent: 5133563 (1992-07-01), Casellato
patent: 5675076 (1997-10-01), Esch et al.
patent: 5881687 (1999-03-01), Sakaguchi et al.
patent: 5893318 (1999-04-01), Cheng et al.
patent: 6485027 (2002-11-01), Carrie et al.
patent: 6536385 (2003-03-01), Takashima
patent: 6713535 (2004-03-01), Orkin et al.
patent: 2005/0186424 (2005-08-01), Murakami et al.
Viton® Brochure. Oct. 2005. <http://www.dupontelastomers.com/products/viton/viton.asp>.
Cuff Michael
FEV Engine Technology, Inc.
Gifford Krass Sprinkle Anderson & Citkowski P.C.
Leung Ka Chun
LandOfFree
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