Telephone handset with transmitter having a one piece gasket for

Details Telephone handset with transmitter having a one piece gasket for Telephone handset with transmitter having a one piece gasket for

1978-02-09

1979-08-07

Claffy, Kathleen H.

179179, H04M 104

Patent

active

041638751

ABSTRACT:
A telephone handset is formed from two elongate hollow concave parts, joined at their peripheries, with a circular recess at one end of the lower part. A transmitter assembly is positioned in the recess and comprises a transmitter, a cup-shaped member positioned on the back of the transmitter and a resilient tubular member surrounding the transmitter and at least the lower or front part of the cup-shaped member. The tubular member has a radially inward projecting rim at its front or lower end extending over the front of the transmitter and a similar rim at its rear end engaging over a projection on the cup-shaped member. The resilient tubular member retains the transmitter and cup-shaped member together, and acoustically seals them together and also acoustically seals the front of the transmitter to the base of the recess.

REFERENCES:
patent: T880003 (1970-11-01), Spahn
patent: 3235674 (1966-02-01), Mirstam
patent: 3243527 (1966-03-01), Sternheim
patent: 3400226 (1968-09-01), Krumreich et al.
patent: 3627930 (1971-12-01), Tolman
patent: 3830988 (1974-08-01), Mol et al.
patent: 4124785 (1978-11-01), Seretny et al.

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