Internal-combustion engines – Poppet valve operating mechanism – Cam
Reexamination Certificate
2008-03-12
2010-12-14
Denion, Thomas E (Department: 3743)
Internal-combustion engines
Poppet valve operating mechanism
Cam
C123S090170, C029S888100, C074S567000, C074S56800M
Reexamination Certificate
active
07849829
ABSTRACT:
A camshaft may include a first shaft, a first lobe member fixed to the first shaft, a second lobe member fixed to the first shaft, and a third lobe member. The first lobe member may include a first lobe portion and a first bearing portion extending axially from the first lobe portion. The second lobe member may include a second lobe portion and a second bearing portion extending axially from the second lobe portion toward the first bearing portion. The third lobe member may include a first end that is rotatably supported on the first bearing portion and a second end that is rotatably supported on the second bearing portion.
REFERENCES:
patent: 4597365 (1986-07-01), Madaffer
patent: 4993282 (1991-02-01), Swars
patent: 5165303 (1992-11-01), Riemscheid et al.
patent: 5218883 (1993-06-01), Swars
patent: 5359970 (1994-11-01), Krebs
patent: 5577420 (1996-11-01), Riemscheid et al.
patent: 5664463 (1997-09-01), Amborn et al.
patent: 5979386 (1999-11-01), Swars
patent: 6182362 (2001-02-01), Lancefield
patent: 6192582 (2001-02-01), Swars
patent: 6247436 (2001-06-01), Lancefield et al.
patent: 6253719 (2001-07-01), Methley
patent: 6725817 (2004-04-01), Methley et al.
patent: 6725818 (2004-04-01), Methley
patent: 7210440 (2007-05-01), Lawrence et al.
patent: 7444968 (2008-11-01), Lancefield et al.
patent: 2005/0226736 (2005-10-01), Lancefield et al.
patent: 2006/0185471 (2006-08-01), Lawrence et al.
patent: 2006/0207538 (2006-09-01), Lancefield et al.
patent: 2007/0119402 (2007-05-01), Lancefield et al.
patent: 4306621 (1994-09-01), None
patent: 1473443 (2004-03-01), None
patent: 03111607 (1991-05-01), None
patent: WO2006/067519 (2006-06-01), None
patent: WO2006/097767 (2006-09-01), None
patent: WO2007/052075 (2007-05-01), None
Clever Glenn E.
Elnick Rodney K.
Kaywood Roy Glenn
Bernstein Daniel A
Denion Thomas E
GM Global Technology Operations Inc.
Harness & Dickey & Pierce P.L.C.
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