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7025281 |
Programmable thermostat incorporating air quality protection
The invention is directed to programmable temperature control in which a controller may be programmed to control a thermal output of said temperature-modifying device, and to operate an air...
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6158231 |
Temperature regulating system employing thermostatic switching devices to assure safe operation of the system in both hazardous and non-hazardous applications
An energy control and transmission system which monitors temperature in piping systems, electronic systems and the like. Energy in the form of a heated or chilled fluid is delivered to the devices...
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6024290 |
Fluid tempering system
A fluid tempering system for supplying tempered fluid to hot fluid distribution system, for example water at a constant temperature by controlling the amount of cold water from the cold water...
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5351337 |
Self-contained pressurized water delivery system
An improved self-contained pressurized water system for use in remote areas, vehicles, or whenever conventional sources of potable water are not readily available including at least one pressure...
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4702306 |
Apparatus for controlling a process variable of a flowing medium
The plant has a controlled section through which water flows, for example, for cooling or heating purposes. The operation of the controlled section is controlled by obtaining temperature...
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4593654 |
Combustion and feedwater controller for a flash boiler
A feedwater controller for a flash type water tube boiler wherein feedwater flow through steam generating coils heated by combustion gases is compensated and adjusted, in order to provide proper...
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4564003 |
Solar/gas heater
An instantaneous gas domestic hot water system incorporating a solar heating panel (80) connected to a hot water storage cylinder (81), the outlet from the hot water storage cylinder passing...
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4346835 |
Instantaneous water heater gas control valve
A multichamber gas control valve modulates and controls the flow of gas to the burner of an instantaneous water heater. Flow of gas from an inlet chamber to a first chamber of the valve is...
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3676304 |
CONTROL OF FRACTIONATION COLUMN REBOILER
The flow of heat exchange fluid through the reboiler of a fractionation column is controlled in response to a computation of the heat actually supplied by the fluid. The set point of the flow...
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3622071 |
CRUDE PETROLEUM TRANSMISSION SYSTEM
A heater having an oil or gas fired burner is shown, tubes are extended through the heater to conduct crude petroleum through the heating zone and lower the viscosity of the petroleum. Conduits...
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3481538 |
BOILER CONTROL APPARATUS
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3219017 |
Water heater having multiple heating coils arranged in parallel flow paths
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3096744 |
Method of and apparatus for regulating the steam temperature in a steam generator
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3068387 |
Manual and automatic control servo-system
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2852196 |
Water heater
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2811311 |
Method of governing a steam generator and governing system therefor
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1001883 |
Title is not available
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