Telephonic communications – Substation or terminal circuitry – For loudspeaking terminal
Patent
1989-10-02
1992-02-04
Dwyer, James L.
Telephonic communications
Substation or terminal circuitry
For loudspeaking terminal
379 40, 379 45, 379355, 379387, 379 37, 200341, 200345, H04M 104, H01H 1304
Patent
active
050864637
ABSTRACT:
A vandal-resistant telephone communications station having a one-piece face plate enclosure with a speaker phone aperture and a plurality of additional apertures therein. A plurality of call push-buttons and an answer push-button are respectively carried in the additional apertures. These buttons are of unique construction and are provided with resilient seals to prevent the insertion of foreign matter around the button, and each button is spring biased to its inoperative position. The call push-buttons control automatic signalling units within the face plate enclosure, and these units automatically generate an output signal at the location being called only during the time the push-button is held in its operative position. The answer push-button operates in similar fashion and is used to respond to an incoming call.
REFERENCES:
patent: 3009023 (1959-05-01), Ruth
patent: 3391256 (1968-07-01), Nawman
patent: 3398244 (1968-08-01), Ertl et al.
patent: 3707607 (1972-12-01), Reddick
patent: 3752927 (1973-08-01), Bartley et al.
patent: 3800089 (1974-03-01), Reddick
patent: 4037067 (1977-07-01), Solomovitz
patent: 4151380 (1979-04-01), Blomeyer et al.
patent: 4176254 (1979-11-01), Tuttle et al.
patent: 4246451 (1981-01-01), Nix
patent: 4254308 (1981-03-01), Blomeyer et al.
patent: 4396176 (1983-08-01), Hanulla
patent: 4480163 (1984-10-01), Morris et al.
patent: 4518826 (1985-05-01), Caudill et al.
patent: 4555600 (1985-11-01), Morse
patent: 4724538 (1988-02-01), Farrell
patent: 4788711 (1988-11-01), Nasco, Jr.
patent: 4794215 (1988-12-01), Sawada et al.
patent: 4822963 (1989-04-01), Martin
patent: 4866764 (1989-09-01), Barker, III
McMonagle, Jr. John J.
Vesely Kevin T.
Dwyer James L.
Shehata M.
LandOfFree
Vandal-resistant communications station does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Vandal-resistant communications station, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Vandal-resistant communications station will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-350912