Expansible chamber devices – Piston – Open-ended hollow skirt type
Patent
1996-06-06
1998-01-27
Denion, Thomas E.
Expansible chamber devices
Piston
Open-ended hollow skirt type
92168, 277165, 277205, F16J 104
Patent
active
057112061
ABSTRACT:
This invention relates to a piston arrangement for minimizing water blow-by in a cylinder bore, comprising a set of metallic compression and oil rings, and a resin-filled O-ring for reducing water blow-by in the cylinder bore until the set of metallic compression and oil rings are properly seated in the cylinder bore.
REFERENCES:
patent: 3806137 (1974-04-01), Prasse et al.
patent: 3917290 (1975-11-01), Geoffrey
patent: 4102608 (1978-07-01), Balkau et al.
patent: 4109924 (1978-08-01), Stucke
patent: 4432925 (1984-02-01), Holtzberg et al.
patent: 4629200 (1986-12-01), Ruddy
patent: 5474307 (1995-12-01), DeBiasse et al.
Encyclopedia of Plastics, pp. 173-174 Dated Dec. 1989.
Denion Thomas E.
Sotak John B.
Westinghouse Air Brake Company
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