H - Electricity – 03 – K
Patent
H - Electricity
03
K
341/38.4, 342/19
H03K 17/296 (2006.01) E21B 43/12 (2006.01) F04B 49/02 (2006.01) F04B 49/06 (2006.01) G04F 1/00 (2006.01) G04G 15/00 (2006.01) G05D 7/06 (2006.01)
Patent
CA 1155949
967-2222G ELECTRONIC INTERMITTER ABSTRACT OF THE DISCLOSURE A programmable system for controlling the cyclic inter- mittent operation of a device, such as a flowing gas well. The system comprises battery powered, solid state circuitry including a programmable memory, an up/down counter and a liquid crystal display for the contents of either the memory or the counter. Programming and control information is introduced into the system through a plurality of touch actuated membrane switches under control of logic circuitry. The memory is first programmed with the desired "on" time and "off" time with which the controlled device is to be cycicly operated. Once started, the system loads the time for the selected starting condition into the counter, establishes that condition in the device and begins counting down toward zero. When zero is reached, the opposite condition is established in the device, the time for the duration of that condition is loaded from the memory into the counter which begins the down counting cycle again. The display is used to program times into the memory and to continuously display the time remaining in a cycle.
375607
Higgins Robert S.
Mccracken Oliver W.
Wortham Larry C.
Otis Engineering Corporation
Riches Mckenzie & Herbert Llp
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