Communication aid

Details Communication aid Communication aid

1986-11-26

1988-08-02

Orsino, Joseph A.

Communications: electrical

Systems

Call station

116334, 116DIG46, 434112, G09B 2100

Patent

active

047616334

ABSTRACT:
A communication or educational aid comprising a housing having a generally flat surface, and a pointer is mounted for rotation on the surface. A pair of spaced guides are located on the surface and a panel or overlay containing a plurality of symbols, such as letters, words, pictures, or the like, is mounted in the guides and is provided with a slot which registers with the shaft of the pointer. The pointer is rotated by depressing a push button operating through an electrical circuit to thereby bring the pointer into registry with one of the symols on the panel.

REFERENCES:
patent: 944665 (1909-12-01), Coe
patent: 1980794 (1934-11-01), Gebler
patent: 2011983 (1935-08-01), Rodde
patent: 2576608 (1951-11-01), Kramer
patent: 3651512 (1972-03-01), Summers
patent: 3732632 (1973-05-01), Dyer
patent: 4165890 (1979-08-01), Leff
patent: 4184277 (1980-01-01), Larin
patent: 4306368 (1981-12-01), Coghill et al.
patent: 4465465 (1984-08-01), Nelson

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