Automatic temperature and humidity regulation – With timing element – Timer other than clock
Patent
1976-02-19
1978-03-07
Wayner, William E.
Automatic temperature and humidity regulation
With timing element
Timer other than clock
165 16, 236 51, 307236, 340310A, 361191, F24F 1100, F23N 520
Patent
active
040775666
ABSTRACT:
The invention provides a system for transmitting operational command signals to one or more remote unit ventilator units from a master control panel. A number of selected command signals corresponding to operational modes such as occupied day, night setback, morning ready and load shedding modes may be transmitted over a two-wire electrical transmission line to which the remote units are parallelly connected. The remote units receive and respond to the command signals by initiating the commanded mode.
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patent: 2992366 (1961-07-01), Veltfort, Jr.
patent: 3260899 (1966-07-01), Green
patent: 3622994 (1971-11-01), Schoenwitz
patent: 3626370 (1971-12-01), Stubbs
patent: 3753184 (1973-08-01), Holloway et al.
patent: 3964023 (1976-06-01), Fauchez
patent: 3964676 (1976-06-01), Rooks et al.
patent: 3972471 (1976-08-01), Ziegler
Multiple Use Control Lines, Relay Engineering -- Struthers-Dunn, Inc. 1940.
Radio Electronics; Switching Tricks With Diodes, pp. 54 & 55; May, 1972.
International Telephone and Telegraph Corporation
O'Halloran John T.
Van Der Sluys Peter C.
Wayner William E.
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