Electricity: motive power systems – Motor-reversing – Periodic- or intermittent-reversing
Patent
1991-10-28
1992-12-01
Wysocki, A. Jonathan
Electricity: motive power systems
Motor-reversing
Periodic- or intermittent-reversing
25112911, H02P 700
Patent
active
051682001
ABSTRACT:
A motorized valve and controller is mounted to a flowmeter having a sensor creating a flow-related signal. A tapered valve stem linearly moves through a round sharp-edge opening in an orifice plate. The stem is longer than the opening. A stepping motor has a linearly moving shaft connected to the valve stem. The shaft is manually movable and may be fixed against rotation for positioning. The stem and orifice plate are replaceable. The controller controls the motor and provides compensation for non-linearity in flow rate. A relatively constant stem force closes the valve totally with a small seating force and a relative low breakaway force. The controller includes multiboard circuit, and provides for manual control. A differential in the level of sensed and demand signals varies the motor opened. Limit signals or a lost of signal enables the manual control. A control panel includes an auto/manual switch, a manual control switch and lamps which indicate the state of the valve control and malfunction thereof.
REFERENCES:
patent: 1985539 (1934-12-01), Hartwig
patent: 2140486 (1938-12-01), Turner
patent: 2348104 (1944-05-01), Beddoes
patent: 2932319 (1960-04-01), Reinecke
patent: 3015768 (1962-01-01), Hornfeck et al.
patent: 3055389 (1962-09-01), Brunner
patent: 3561895 (1971-02-01), Michelson
patent: 3602487 (1971-08-01), Johnson
patent: 3616884 (1971-11-01), Jurge
patent: 3684423 (1972-08-01), Bryant
patent: 3712582 (1973-01-01), Moesta
patent: 3722811 (1973-03-01), Osburn
patent: 3734675 (1973-05-01), Osburn
patent: 3816901 (1974-06-01), Camacho et al.
patent: 3905394 (1975-09-01), Jerde
patent: 4035203 (1977-07-01), L'Hermite et al.
patent: 4111637 (1978-09-01), Hillman, II
patent: 4279406 (1981-07-01), Bourhis et al.
patent: 4322255 (1982-03-01), Kostelitz
patent: 4348169 (1982-09-01), Swithenbank et al.
patent: 4364111 (1982-12-01), Jocz
patent: 4440028 (1984-04-01), Ramlow
patent: 4445075 (1984-04-01), Fry
patent: 4445945 (1984-05-01), Schwalm
patent: 4632707 (1986-12-01), Shay et al.
patent: 4744839 (1988-05-01), Queille
patent: 4774676 (1988-09-01), Stenzel et al.
LandOfFree
Automatic powered flowmeter valves and control thereof does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Automatic powered flowmeter valves and control thereof, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Automatic powered flowmeter valves and control thereof will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-504539