Plastic article or earthenware shaping or treating: apparatus – With apparatus assembly or dismantling means or with idle part – Means permitting removal or substitution of elements during...
Patent
1977-05-04
1978-08-22
Husar, Francis S.
Plastic article or earthenware shaping or treating: apparatus
With apparatus assembly or dismantling means or with idle part
Means permitting removal or substitution of elements during...
210447, 425190, 425217, B29F 300
Patent
active
041085884
ABSTRACT:
Apparatus for forming plastic melts into strands or filaments wherein molten plastic material is delivered by a pump from a container through a feed line to a distributor means which has a first outlet for the molten plastic material to be processed and a second outlet to a return line leading back to the container, and a control valve is located in the return line to regulate the return of flow of the plastic material to the container, the return flow of the plastic material to the container, the return line and associated control functioning to avoid undesirable plugging of the apparatus or damage to the plastic materials during interruptions in operations, and the like.
REFERENCES:
patent: 3167811 (1965-02-01), Kraus et al.
patent: 3501806 (1970-03-01), Schrader
patent: 3503096 (1970-03-01), Marianelli
patent: 3589163 (1971-06-01), Byrne et al.
patent: 3743101 (1973-07-01), Schmidt
patent: 3947195 (1976-03-01), Fritsch
Briggs William R.
C.F. Scheer & Cie.
Husar Francis S.
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