Sandblast shutoff valve

Details Sandblast shutoff valve Sandblast shutoff valve

1986-10-31

1987-10-13

Schmidt, Frederick R.

Abrasive tool making process, material, or composition

With carbohydrate or reaction product thereof

251303, 137527, 51427, B24C 502

Patent

active

046989404

ABSTRACT:
A shutoff valve for use on sandblasting equipment wherein the valve provides a fail safe positive closure of air and sand pressure stream at the nozzle where the operator is. The sand and air pressure stream provides a positive force on the valve assisting the closure and maintaining a tight seal against air and sand infiltration to the nozzle.

REFERENCES:
patent: 2247773 (1941-07-01), Dunn
patent: 2989283 (1961-06-01), Klinger

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