Communications: electrical – Selective – Having indication or alarm
Patent
1977-07-08
1978-11-21
Barefoot, Galen L.
Communications: electrical
Selective
Having indication or alarm
104211, 104212, 244 33, 244114R, 362391, G08G 500
Patent
active
041268504
ABSTRACT:
Warning lights are releasably secured, by means of clamps, along the length of a cable employed as a tether for a balloon. The cable passes through a relatively stationary, conically shaped cam at the base of the cable. As the balloon is winched back to earth, a cam follower on each clamp is forced into engagement with the cam, causing the jaws of the clamp to open and the clamp and its indicator automatically to be released from the cable.
REFERENCES:
patent: 292317 (1884-01-01), Joseph
patent: 1249455 (1917-12-01), Myers
patent: 1994535 (1935-03-01), Roth
patent: 3531066 (1969-03-01), Baekken
patent: 3689974 (1972-09-01), Whipple et al.
patent: 4055316 (1977-10-01), Chipper et al.
Barefoot Galen L.
Christoffersen H.
Cohen Samuel
RCA Corporation
Squire William
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