Pumps – Condition responsive control of pump drive motor – Plural pumps having separate drive motors – supply sources,...
Patent
1983-12-29
1985-05-14
Freeh, William L.
Pumps
Condition responsive control of pump drive motor
Plural pumps having separate drive motors, supply sources,...
417 12, 417 40, 417410, 166 53, 166 75R, 166168, F04B 4106, F04B 4900, E21B 2700
Patent
active
045169110
ABSTRACT:
A solid state switching controller for use with various types of oil well bailer pumps. Individually programmable steps with lockouts provide multiple mutual exclusivity between various circuit operations. A trickle charge battery system powers the control circuits. A tank overflow float protects against oil spillage. An automatic production rate adjustment circuit is provided which increases cycle time in proportion to the rate of production. The circuit includes a low power voltage detector for disabling the control circuits until the line voltage is acceptable. A three-phase power and control system with an isolation transformer for the controls avoids unreliable ground connections. The timers include a dividing circuit with an RC circuit. All power actuated apparatus are actuated by triac switches which are controlled by an opto driver. The bailer brake is pulse actuated for allowing the bailer to sink into crude oil without excess cable looseness.
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Senghaas Karl A.
Senghaas Peter
Freeh William L.
Neils Paul F.
Southwest Bailer Pump Company
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