Multipart lost foam pattern and method of making same

Details Multipart lost foam pattern and method of making same Multipart lost foam pattern and method of making same

1984-12-14

1987-06-16

Godici, Nicholas P.

Metal founding

Means to shape a forming surface

Pattern

164 34, 164 45, B22C 702

Patent

active

046730230

ABSTRACT:
A lost foam pattern including a first lost foam piece having a tapered inner surface defining an indentation, and a second lost foam piece received in the indentation and having a tapered outer surface in frictional engagement with the tapered inner surface, the first lost foam piece and second lost foam piece being fixedly connected solely by virtue of the frictional engagement.

REFERENCES:
patent: 2468479 (1949-04-01), Barishman
patent: 2508546 (1950-05-01), Skinner
patent: 3094751 (1963-06-01), Horton
patent: 3254379 (1966-06-01), Poe
patent: 3635280 (1972-01-01), Parsons
patent: 3695340 (1972-10-01), Gross
patent: 3707029 (1972-12-01), Parsons
patent: 3835913 (1974-10-01), Vandermark et al.
patent: 3848654 (1974-11-01), Boyle et al.
patent: 4161208 (1979-07-01), Cooper
patent: 4172867 (1979-10-01), Devault
Mechanical Engineers' Handbook, edited by Lionel S. Marks, 5th Ed., 1951, pp. 223, 224.

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