Internal-combustion engines – Four-cycle – Rotating valve
Reexamination Certificate
2006-08-15
2006-08-15
Kamen, Noah P. (Department: 3747)
Internal-combustion engines
Four-cycle
Rotating valve
C123S190600, C123S190800
Reexamination Certificate
active
07089893
ABSTRACT:
A valve system for a combustion engine that includes at least one combustion chamber is disclosed. The combustion chamber includes an intake port and an exhaust port. The valve system includes cylindrical valve shaft, the cylindrical valve shaft having a cylindrical surface, a central axis along the cylindrical valve shaft and containing at least two recessed areas, the recessed areas being at one hundred eighty degrees to one another along the axis of the valve shaft, the recessed areas extending approximately ninety degrees about the axis and along the cylindrical surface, or about 25 percent of the surface.
REFERENCES:
patent: 1073671 (1913-09-01), Fornaca
patent: 1119494 (1914-12-01), Bournonville
patent: 1135719 (1915-04-01), Ritter
patent: 1215993 (1917-02-01), Rimbach
patent: 1218296 (1917-03-01), Moorhead
patent: 2082231 (1937-06-01), Strickland
patent: 2156749 (1939-05-01), Baker
patent: 3893483 (1975-07-01), Ackerman
patent: 3945364 (1976-03-01), Cook
patent: 4077382 (1978-03-01), Gentile
patent: 4473041 (1984-09-01), Lyons et al.
patent: 4562796 (1986-01-01), Eickmann
patent: 4879979 (1989-11-01), Triguero
patent: 4889088 (1989-12-01), Berger
patent: 4944261 (1990-07-01), Coates
patent: 5052349 (1991-10-01), Buelna
patent: 5074265 (1991-12-01), Ristin et al.
patent: 5152259 (1992-10-01), Bell
patent: 5249553 (1993-10-01), Guiod
patent: 5490485 (1996-02-01), Kutlucinar
patent: 5724926 (1998-03-01), Wilke
patent: 5967108 (1999-10-01), Kutlucinar
patent: 6029617 (2000-02-01), Lambert et al.
patent: 6443110 (2002-09-01), Qattan
patent: 642143 (1984-03-01), None
Crabtree Edwin W.
Kamen Noah P.
Pizarro Ramon L.
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