Tip for foundry core blast pipe

Details Tip for foundry core blast pipe Tip for foundry core blast pipe

1976-04-12

1978-11-28

Baldwin, Robert D.

Metal founding

Means to shape a forming surface

Including means for compacting particulate fluent mold...

141392, B22C 1524

Patent

active

041271599

ABSTRACT:
A tip for a pipe of the type used in foundries for the fabrication of molds and sand cores by sand blasting in an appropriate foundry installation is made of plastic material and has its exterior portion in the form of an essentially cylindrical part on the side connected to the blast pipe and of a coupling cone in one of the filling holes of the core molds on the other side of his pipe. It is distinguished by the fact that this coupling cone is connected to the essentially cylindrical external portion by an elastically supported essentially circular shoulder on the upper wall of the core mold, thus achieving a tight fit by exerting a horizontal thrust on the core mold. Application to mass production of sand cores by blasting, particularly by means of rigid metal blast pipes, is attained through this invention.

REFERENCES:
patent: 926550 (1909-06-01), Dafoe
patent: 2761186 (1956-09-01), Peterson
patent: 3235921 (1966-02-01), Bego et al.
patent: 3901401 (1975-08-01), Lynn et al.
patent: 3903952 (1975-09-01), Bego et al.
patent: 3989089 (1976-11-01), Deguchi

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