Diecasting venting valve

Details Diecasting venting valve Diecasting venting valve

1978-11-16

1980-12-16

Baldwin, Robert D.

Metal founding

Means to shape metallic material

Pressure shaping means

251 58, B22D 1722

Patent

active

042390800

ABSTRACT:
A venting valve arrangement for diecasting molds comprises a venting conduit for venting the mold cavity, a valve piston in the venting conduit, and an actuating piston exposed to the action of the casting material. The actuating piston and the valve piston have substantially parallel axes and are interconnected by a positive interlock of the two pistons, or parts actuated by the pistons in the manner of followers. Several axially parallel adjacent actuating pistons may be provided, all acting upon a common transmission piston.

REFERENCES:
patent: 388860 (1888-09-01), Greenwood
patent: 3885618 (1975-05-01), Hodler

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