Toothbrush without metal gasket

Details Toothbrush without metal gasket Toothbrush without metal gasket

1993-07-26

1994-09-27

Rosenbaum, Mark

Brush, broom, and mop making

Processes

300 8, 264243, A46D 108, A46D 300

Patent

active

053502191

ABSTRACT:
The present invention is related to a toothbrush without metal gasket which is characterized in the following design and process: it consists of a head and a body to wrap and fuse the head, wherein the head is provided with a plurality of bristles-setting holes for setting bristles therein by a toothbrush manufacturing machine. A cross clamping piece is formed at the bottom of each bristles-setting hole, and after the bristles are set in the bristles-setting hole and pass through the cross clamping piece, the bristles can be tightly fixed at the bottom of bristles-setting hole through the cross clamping piece; and when the head with bristles well set thereon is disposed in an extruding molding die of toothbrush body, the head can be wrapped and fused and fixed integrally with the toothbrush body by molding under pressure at a high temperature to form a toothbrush without any metal gasket.

REFERENCES:
patent: 3026146 (1962-03-01), Szabo et al.
patent: 4444711 (1984-04-01), Schad
patent: 4619485 (1986-10-01), Lewis, Jr.
patent: 4635313 (1987-01-01), Fassler et al.
patent: 4637660 (1987-01-01), Weihrauch
patent: 4892698 (1990-01-01), Weihrauch
patent: 5143424 (1992-09-01), Boucherie
patent: 5158342 (1992-10-01), Pai

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