Wall telephone assembly

Details Wall telephone assembly Wall telephone assembly

1983-12-22

1986-04-08

Rubinson, Gene Z.

179146R, 179159, 179178, H04M 102

Patent

active

045814902

ABSTRACT:
A wall-mounted telephone assembly is described in which reentrant surfaces are formed on both the handset and the wall-mounted base unit to increase the difficulty of dislodging the handset from its hung-up position upon the base unit. In addition the handset and base unit are magnetically attracted to each other to further increase the difficulty of dislodging it, and also for the purpose of keeping the hang-up switch in the on-hook condition when the handset is hung up. The magnetically permeable structure incorporated in the handset for this purpose also serves the purposes of acoustically isolating the microphone from the interior of the handset housing, and of focusing the desired acoustic signal upon the microphone, thus improving the acoustic performance of the telephone.

REFERENCES:
patent: 1575743 (1926-03-01), Driscoll
patent: 2322851 (1943-06-01), Kalb
patent: 2485278 (1949-10-01), Gilman et al.
patent: 3546397 (1970-12-01), Laing
patent: 4018998 (1977-04-01), Wegner
patent: 4263484 (1981-04-01), Hisatsune et al.
patent: 4319095 (1982-03-01), Cogan
patent: 4395591 (1983-07-01), Koczkos
Foley's College Physics, J. L. Galhart, Maple Press, York, Pa., 1947, pp. 313-327.

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