Internal-combustion engines – Particular piston and enclosing cylinder construction – Piston
Reexamination Certificate
2011-05-10
2011-05-10
McMahon, M. (Department: 3783)
Internal-combustion engines
Particular piston and enclosing cylinder construction
Piston
Reexamination Certificate
active
07938093
ABSTRACT:
This invention relates to an articulated two piece piston designed for reciprocable movement within a combustion chamber of an internal combustion engine. The piston has a crown of high-strength ferrous material that is precision cast net to finished dimensions on all inner and outer surfaces to provide a controlled thickness throughout to ensure mechanical and thermal consistency without any additional machining of the crown. The crown is attached to a separate skirt by the use of a wrist pin, wherein the skirt is made of ferrous or non-ferrous materials by casting or other means.
REFERENCES:
patent: 2296478 (1942-09-01), Morgan
patent: 3363608 (1968-01-01), Scherenberg et al.
patent: 3532030 (1970-10-01), Grenville
patent: 4056044 (1977-11-01), Kamman et al.
patent: 4180027 (1979-12-01), Taylor
patent: 4413597 (1983-11-01), Stang et al.
patent: 4502422 (1985-03-01), Brann
patent: 4986167 (1991-01-01), Stratton et al.
patent: 4989559 (1991-02-01), Fletcher-Jones
patent: 5081968 (1992-01-01), Bruni
patent: 5144844 (1992-09-01), Mathiak et al.
patent: 5144923 (1992-09-01), Leites et al.
patent: 5199318 (1993-04-01), Hudson
patent: 5299538 (1994-04-01), Kennedy
patent: 5339352 (1994-08-01), Armstrong et al.
patent: 5546896 (1996-08-01), Zaiser
patent: 5913960 (1999-06-01), Fletcher-Jones
patent: 6155157 (2000-12-01), Jarrett
patent: 6453797 (2002-09-01), Bauer
patent: 6494170 (2002-12-01), Moloney et al.
patent: 6499387 (2002-12-01), Bedwell
patent: 6526871 (2003-03-01), Zhu et al.
patent: 6557514 (2003-05-01), Gaiser
patent: 6588320 (2003-07-01), Gaiser et al.
patent: 6938604 (2005-09-01), Gabriel et al.
patent: 6957638 (2005-10-01), Scharp
Industrial Parts Depot, Inc.
McMahon M.
Wegman Hessler & Vanderburg
LandOfFree
Two piece cast ferrous crown piston for internal combustion... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Two piece cast ferrous crown piston for internal combustion..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Two piece cast ferrous crown piston for internal combustion... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2686329