Apparatus for manufacturing brushes

Details Apparatus for manufacturing brushes Apparatus for manufacturing brushes

1974-09-20

1976-02-03

Spicer, Jr., Robert L.

Plastic article or earthenware shaping or treating: apparatus

Dough divider type including trap chamber

Rotating trap chamber pickup

425805, 425DIG51, 425244, 264328, B29F 104

Patent

active

039362612

ABSTRACT:
A finished plastic-handled brush is prepared by a single molding step involving gateless molding of the brush back by a tunnel-gating and novel punch-pin finishing apparatus and process which eliminates the usual gate stud, and removing the finished brush back and securing tufts of bristles in the face of the brush back to complete the brush construction.

REFERENCES:
patent: 2630601 (1953-03-01), Schiffer et al.
patent: 2770011 (1956-11-01), Kelly

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