Valves and valve actuation – Fluid actuated or retarded – Pilot or servo type motor
Patent
1984-04-20
1986-09-02
Jones, Larry
Valves and valve actuation
Fluid actuated or retarded
Pilot or servo type motor
251 25, 25112911, 236 49, F16K 3112
Patent
active
046091769
ABSTRACT:
An air supply system is provided with multiple direct driven electrical control valves to control the flow of air throughout a building. Each control valve has a variable orifice with a reciprocably adjustable shaped spool, located between the inlet and outlet fittings. An electric stepping motor is directly connected to the spool through a suitable screw thread and spline arrangement to effect this reciprocable adjustment of the spool. Each motor is directly driven by pulses sent from a computer or microprocessor which provides positioning input for the valves in response to sensed conditions, thereby accurately controlling and adjusting flow of air throughout a building air supply system.
REFERENCES:
patent: 2062606 (1936-12-01), Powell
patent: 2824460 (1958-02-01), Davis
patent: 2994794 (1961-08-01), Jordan
patent: 3330289 (1967-07-01), Grace
patent: 3434409 (1969-03-01), Fragnite
patent: 3677164 (1972-07-01), Traver et al.
patent: 3796367 (1974-03-01), Rifkin
patent: 3799046 (1974-03-01), Gorcher
patent: 4312474 (1982-01-01), Tulowiecki
patent: 4397223 (1983-08-01), Maxson
patent: 4440066 (1984-04-01), Anderson
patent: 4460009 (1984-07-01), Nanci et al.
Airpax--Digital Linear Actuators, 1982, brochure, pp. 2, 3, 6.
Badger Meter, Inc.--Research Control Valves, current catalog.
ITT General Controls--Advertisement, publication source unknown.
Fujikin International, Inc.--Electronic Mini-Control Valves, current brochure.
Andale--Bulletin 900, Electric Actuator, Model A300, Linear.
E-Systems, Montek Division--Electric Actuator, Model A300 and A1500, 2 brochures.
Robotics Age, In The Beginning--Copyright 1983, by Robotics Age, Inc., shaded portion of p. 65.
Badger Meter Inc.
Jones Larry
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