Electricity: motive power systems – Braking – Automatic and/or with time-delay means
Patent
1985-10-11
1987-06-30
Shoop, Jr., William M.
Electricity: motive power systems
Braking
Automatic and/or with time-delay means
318481, 110189, 110190, 236260, 126104A, G05B 500, F23N 518
Patent
active
046773576
ABSTRACT:
An apparatus for controlling the speed of a combustion blower motor includes first means for generating an output signal representative of a differential pressure. A second means provides a second signal representative of a desired airflow output of the blower and a summation circuit receives the first signal and the second signal and generates a command signal in response thereto. A power output circuit receives the command signal and responsively provides a regulated level of power to the motor for controlling the speed thereof. The first means may be embodied as a diaphragm-type differential pressure transmitter while the second means may be embodied as an adjustable voltage source or as a source which provides an output signal representative of a temperature.
REFERENCES:
patent: 2259119 (1941-10-01), Stoehr
patent: 2820939 (1958-01-01), Elwell
patent: 3481538 (1969-12-01), Dines
patent: 3489345 (1970-01-01), Moreland
patent: 3613391 (1971-10-01), Harter
patent: 3865181 (1975-02-01), Mori
patent: 3918677 (1975-11-01), Cowan
patent: 4004730 (1977-01-01), Walker
patent: 4135487 (1979-01-01), Hays
patent: 4316130 (1982-02-01), Louarn
patent: 4316420 (1982-02-01), Kochey
patent: 4334855 (1982-06-01), Nelson
patent: 4467998 (1984-08-01), Spence
Hayes Thomas E.
Jamieson J. Scott
Spence Scott L.
Keane Patrick C.
Shoop Jr. William M.
LandOfFree
Furnace draft control with remote control feature does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Furnace draft control with remote control feature, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Furnace draft control with remote control feature will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-449764