Gating arrangement for the moulding working of plastics formed f

Details Gating arrangement for the moulding working of plastics formed f Gating arrangement for the moulding working of plastics formed f

1974-04-23

1976-01-20

Love, John J.

Fluid sprinkling, spraying, and diffusing

Combining of separately supplied fluids

And valving means controlling flow for combining

239533, 239562, 425130, 425245R, 425817R, 425DIG224, B05B 1208

Patent

active

039333124

ABSTRACT:
A gating arrangement for use in moulding plastics, particular foam plastics, formed from a plurality of fluid constituents comprises a plurality of nozzles for delivering the constituents under pressure into a mixing chamber. A nozzle needle is associated with each nozzle and is movable between positions which close and open the nozzles. The nozzle needles are moved from the closing position into the opening position by the pressure of the fluid constituents. A hydraulic piston is associated with each nozzle needle for retaining each nozzle needle in a definite position.

REFERENCES:
patent: 3160212 (1964-12-01), Reid
patent: 3537653 (1970-11-01), Jones
patent: 3598322 (1971-08-01), Rupert et al.
patent: 3716318 (1973-02-01), Erik
patent: 3799199 (1974-03-01), Rumpff

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