Metal founding – Process – Shaping a forming surface
Patent
1989-02-02
1991-05-28
Seidel, Richard K.
Metal founding
Process
Shaping a forming surface
164246, 164249, B22C 702, B22C 904
Patent
active
050185683
ABSTRACT:
A lost foam pattern for an engine block includes a cylinder and an axially extending transfer passage defined by spaced side walls and an inner wall which is outwardly convex. The pattern further includes a first pattern piece including a wall defining a portion of a cylindrical bore having an axis, and a passage recess extending in the direction of the axis of the cylindrical bore and communicating with the cylindrical bore, which passage recess is defined by opposed walls extending axially with respect to the cylindrical bore and forming the spaced side walls of the transfer passage, a second pattern piece located in the passage recess, having a first arcuate wall forming a continuation of the cylindrical bore portion in the first pattern piece, having a second arcuate wall forming the inner wall of the transfer passage and being outwardly convex, and additional recesses and portions on the first and second pattern pieces for locating the pattern pieces relative to each other and for preventing relative movement therebetween except in the direction opposite the direction of assembly of the pattern pieces.
REFERENCES:
patent: Re31488 (1984-01-01), Trumbauer
patent: 4243093 (1981-01-01), Nieman
patent: 4632169 (1986-12-01), Osborn et al.
patent: 4640333 (1987-02-01), Martin
patent: 4657063 (1987-04-01), Morris
patent: 4673023 (1987-06-01), Winston
patent: 4691754 (1987-09-01), Trumbauer et al.
patent: 4721149 (1988-01-01), Hesterberg et al.
Outboard Marine Corporation
Seidel Richard K.
LandOfFree
Lost foam engine block pattern does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Lost foam engine block pattern, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Lost foam engine block pattern will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-28463