Multipiece foam pattern for making hollow casting having an inte

Details Multipiece foam pattern for making hollow casting having an inte Multipiece foam pattern for making hollow casting having an inte

1991-12-20

1992-09-01

Batten, Jr., J. Reed

Metal founding

Means to shape a forming surface

Pattern

164235, 164249, B22C 702

Patent

active

051431432

ABSTRACT:
A cast tubular structure including an integral hose connection element formed thereon is produced by lost foam casting wherein a circular socket seat is formed on a pattern for a body portion of the cast tubular structure and a cylindrical pattern for the integral hose connection element is formed by a mold without vent openings on the mold surface in the area of the cylindrical pattern corresponding to the hose sealing surface of the cast tubular structure. The pattern sections are joined with the pattern section for the hose connection element sealing within the circular socket seal formed in the body portion of the cast structure.

REFERENCES:
patent: 4964454 (1990-10-01), Hubbell et al.
patent: 4969504 (1990-11-01), Ruhnke et al.
patent: 4987945 (1991-01-01), Corbett

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