Evaporable foam pattern for casting an air induction manifold

Details Evaporable foam pattern for casting an air induction manifold Evaporable foam pattern for casting an air induction manifold

1988-12-07

1990-10-23

Seidel, Richard K.

Metal founding

Means to shape a forming surface

Pattern

164 34, 164235, B22C 702

Patent

active

049644548

ABSTRACT:
An evaporable foam pattern for casting a metal air induction manifold for an internal combustion engine. The pattern is formed from an evaporable foam material, such as polystyrene, and in the assembled condition the pattern is in the form of an elongated body member having a generally rectangular cross section. One end of the body member is enclosed by an end wall while the opposite end of the body member is open. One of the side walls of the body member is provided with a plurality of generally parallel slots which are elongated in a lateral direction with respect to the longitudinal axis of the body member. The pattern is composed of a pair of longitudinal pattern sections each being generally U-shaped in cross section and having abutting edges disposed on a parting line. An adhesive joins the abutting edges. The parting line between the pattern section splits the opening in the end of the body member and all of the slots are formed in one pattern section.

REFERENCES:
patent: 3977377 (1976-08-01), Reid
patent: 4244332 (1981-06-01), Kusche et al.
patent: 4632169 (1986-12-01), Osborn et al.
patent: 4640333 (1987-02-01), Martin et al.
patent: 4657063 (1987-04-01), Morris
patent: 4702202 (1987-10-01), Hensel et al.
patent: 4777997 (1988-10-01), Corbett
patent: 4802447 (1989-02-01), Corbett

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