Fluid handling – Pressure modulating relays or followers – With counter-balancing pressure feedback to the modulating...
Patent
1992-10-13
1994-05-10
Nilson, Robert G.
Fluid handling
Pressure modulating relays or followers
With counter-balancing pressure feedback to the modulating...
91387, F15B 1316
Patent
active
053099354
ABSTRACT:
A device for converting an electric current signal into a mechanical correcting variable, includes a pneumatic correcting element (1) with slide rod (2), a pneumatic amplifier (3), a compressed-air supply (4) and an electropneumatic signal converter which has a solenoid (5) with coil, iron circuit and air gap, a nozzle/baffle-plate device (6), and a lever (8) which is swingably mounted on a tensioning band (7). One end of the tensioning band (7) is mounted for turning around its longitudinal axis and, perpendicular to the longitudinal axis there is arranged a feedback lever (12) one end of which is attached, fixed in rotation, to the turnable end of the fastening belt (7) while its free end is coupled to the slide rod (2) of the pneumatic correcting element (1).
REFERENCES:
patent: 2942581 (1960-06-01), Gaffney
patent: 3401603 (1968-09-01), Coakley
patent: 3503303 (1970-03-01), Domyan
patent: 4343224 (1982-08-01), Kemmler
patent: 4628793 (1986-12-01), Roth
Farber Martin A.
Nilson Robert G.
Sensycon Gesellschaft fur Industrielle Sensorsysteme und
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