Spray spinning nozzle using parallel jet flow

Details Spray spinning nozzle using parallel jet flow Spray spinning nozzle using parallel jet flow

1977-06-01

1979-09-18

Spicer, Jr., Robert L.

Plastic article or earthenware shaping or treating: apparatus

Continuous filament forming or film casting means with...

425 821, 425 831, 425 72S, 57310, B29D 3100

Patent

active

041681380

ABSTRACT:
A spray spinning nozzle for producing a substantially continuous filament from a molten synthetic resinous material includes a nozzle with a removable orifice from which a filament of molten material is emitted and a gas attenuation assembly which is laterally removable from the nozzle. The attenuation assembly includes at least three gas jets spaced about and radially close to the nozzle axis for emitting parallel high velocity jets. Drag forces produced by the gas jets attenuate the filament to a thin diameter.
The resulting filament has a comparatively narrow range of diameter variation.

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patent: 2692220 (1954-10-01), Labino
patent: 2697056 (1954-12-01), Schwartz
patent: 2859506 (1958-11-01), Slayter
patent: 2886877 (1959-05-01), Frakart et al.
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patent: 3676242 (1972-07-01), Prentice
patent: 3824052 (1974-07-01), Fowler
patent: 3849040 (1974-11-01), McGinnis et al.
patent: 3985481 (1976-10-01), Brackmann et al.

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