B - Operations – Transporting – 24 – C
Patent
B - Operations, Transporting
24
C
51/2, 251/25
B24C 5/02 (2006.01)
Patent
CA 1268948
ABSTRACT OF THE DISCLOSURE 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.
543205
Frayne & Company Robert
Truman's Inc.
Zwicker Fred
LandOfFree
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