Electricity: circuit makers and breakers – Multiple circuit control – Pivoted contact
Patent
1982-09-29
1985-08-20
Brown, Thomas W.
Electricity: circuit makers and breakers
Multiple circuit control
Pivoted contact
179167, 200328, H01H 922, H04M 103
Patent
active
045366225
ABSTRACT:
A telephone handset arranged to operate completely independently of a base comprises switches for effecting a connection with a telephone line and a manually operable pushbutton for operating the switches. The pushbutton is biased to hold the switches in a first position to place the telephone handset OFF-HOOK. Successive manual operations of the pushbutton places the switches in a second position wherein the telephone handset is ON-HOOK. The pushbutton also includes a lip for latching the switches in the second condition to hold the telephone handset ON-HOOK. A neon bulb is located in the handset to signal when ringing appears on the telephone line.
REFERENCES:
patent: 2863959 (1958-12-01), Lampe et al.
patent: 3396244 (1968-08-01), Kowaleski
patent: 3426160 (1969-02-01), Ring
patent: 3459900 (1969-08-01), Alster et al.
patent: 3489860 (1970-01-01), Greenman et al.
patent: 3500293 (1970-03-01), Cocco
patent: 3896270 (1975-07-01), Kopec et al.
patent: 4124785 (1978-11-01), Seretny et al.
patent: 4131768 (1978-12-01), Wood
patent: 4379953 (1983-04-01), Huff
AT&T - Technologies, Inc.
Brown Thomas W.
Kip, Jr. R. F.
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