Nozzle shut-off valve

B - Operations – Transporting – 29 – C

Patent

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18/702

B29C 45/23 (2006.01)

Patent

CA 1088714

Abstract of the Disclosure A nozzle shut-off valve for an injection molding machine has a plunger mounted to reciprocate in a bore so as to block the passageway of the plastic through the nozzle, a single-acting pneumatic piston and cy- linder to reciprocate the plunger, to block said passageway, and a pilot passage connecting the underside of the plunger to a location upstream of the intersection of the bore and the passageway for plastic through the nozzle.

282040

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