Plastic and nonmetallic article shaping or treating: processes – With step of making mold or mold shaping – per se – Utilizing surface to be reproduced as an impression pattern
Patent
1986-06-09
1988-04-05
Silbaugh, Jan H.
Plastic and nonmetallic article shaping or treating: processes
With step of making mold or mold shaping, per se
Utilizing surface to be reproduced as an impression pattern
29460, 29469, 295273, 29856, 264222, 264227, 264275, 264293, 264DIG30, 381 686, 381 692, B29C 3340, B29C 3910, H04R 2500
Patent
active
047357592
ABSTRACT:
A hearing aid including a plug that is tailored to snugly fit into the auditory canal of the user's ear, and that has a preshaped component assembly embedded therein, the component assembly comprising shell-like members that are interconnected to each other and that have the electrical components of the hearing aid mounted therein, the members being prearranged to achieve a configuration generally similar to the shape of the plug and being secured in end-to-end position for mounting interiorly in a negative impression in a mold as formed from the user's auditory canal, the assembled members being embedded in the negative impression in the mold upon pouring of a quick setting plastic material into the negative impression, thereby permanently fixing the preshaped assembly in the plug that is formed as the quick setting plastic material hardens around the assembled preshaped members.
REFERENCES:
patent: 2480048 (1949-08-01), Rice
patent: 3345737 (1967-10-01), Gordon
patent: 3475528 (1969-10-01), Parks et al.
patent: 3833701 (1974-09-01), Johnson et al.
patent: 4471490 (1984-09-01), Bellafiore
patent: 4569812 (1986-02-01), Werwath et al.
Silbaugh Jan H.
Tentoni Leo B.
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