Water heater secondary control device

Patent · Tue Aug 18 00:00:00 EDT 1987

OSTI ID:5911823

Subherwal, B R

A secondary control device for gas water heaters is described having a tank, cold water inlet, hot water outlet and a heater thermostat, the control device comprising: valve means for controlling the flow of gas from a source thereof to the heater thermostat, the valve means connected between the gas source and the heater thermostat; means attached to the outside of the cold water inlet for sensing the temperature of water in the cold water inlet and providing an electrical signal representative thereof, the signal generated by the temperature sensing means being connected to the valve means; means for opening the valve means for transmitting the gas to the heater thermostat when the signal is representative of the temperature of the cold water being less than a predetermined temperature; and means for closing the valve means for preventing transmission of the energy to the heater thermostat when the signal is representative of the temperature of the cold water being equal to or greater than the predetermined temperature.

• Assignee: B R Laboratories, Inc., Huntington Beach, CA
• Patent Number(s): US 4684061
• OSTI ID: 5911823
• Resource Relation: Patent File Date: Filed date 23 Sep 1985
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
WATER HEATERS
THERMOSTATS
VALVES
COMBUSTION
GAS BURNERS
GAS FLOW
NATURAL GAS
SIGNALS
TANKS
TEMPERATURE MEASUREMENT
APPLIANCES
BURNERS
CHEMICAL REACTIONS
CONTAINERS
CONTROL EQUIPMENT
ENERGY SOURCES
EQUIPMENT
FLOW REGULATORS
FLUID FLOW
FLUIDS
FOSSIL FUELS
FUEL GAS
FUELS
GAS FUELS
GASES
HEATERS
OXIDATION
THERMOCHEMICAL PROCESSES
421000* - Engineering- Combustion Systems