Pattern assembly and method of making the same

Details Pattern assembly and method of making the same Pattern assembly and method of making the same

1976-07-19

1977-12-06

Shore, Ronald J.

Metal founding

Process

Shaping a forming surface

164244, 164246, B22C 700

Patent

active

040611752

ABSTRACT:
For use in the lost pattern process of investment casting, an improved pattern assembly of the type having a pattern supporting center tree or sprue member including a rigid tube surrounded by a sleeve made of a flexible material, characterized by longitudinally spaced, thin bands of pattern material extending around the sleeve at those locations where the patterns are to be attached.

REFERENCES:
patent: 2994931 (1961-08-01), Operhall et al.
patent: 3186041 (1965-06-01), Horton
patent: 3263286 (1966-08-01), Watts et al.
patent: 3424227 (1969-01-01), Watts et al.
patent: 3520349 (1970-07-01), Watts
patent: 3520350 (1970-07-01), Watts

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