Process for the manufacture of brushes

Details Process for the manufacture of brushes Process for the manufacture of brushes

1979-02-22

1980-11-11

Arnold, Donald J.

Plastic and nonmetallic article shaping or treating: processes

Mechanical shaping or molding to form or reform shaped article

To produce composite, plural part or multilayered article

264157, 264231, 264271, 300 17, 300 21, 2643281, 2643282, B29D 3100

Patent

active

042332605

ABSTRACT:
This invention relates to a process for the manufacture of brushes particularly tooth-brushes, comprising a bristle-carrying head and possibly a handle in synthetic material fixed to the head.
According to this invention, the piles are positioned in a mold by causing them to cross entirely the mold and to project outside of two opposite parts of the mold, the latter having an inner volume or capacity corresponding to at least one brush head and possibly one handle for such a head, a synthetic liquid or pasty synthetic material, such as a prepolymer or a synthetic resin, being then injected into the mold so as to cause the piles to be embedded into said synthetic material and to be surrounded by synthetic material having the shape of at least one head and possibly of at least one handle integral with said head(s).

REFERENCES:
patent: 1202244 (1916-10-01), Timmis
patent: 1413211 (1922-04-01), Albright
patent: 2457440 (1948-12-01), Booth
patent: 2495666 (1950-01-01), Taubert
patent: 3926201 (1975-12-01), Katz
patent: 4006750 (1977-02-01), Chodorow
patent: 4029453 (1977-06-01), Campion

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