| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 236001000 |
MISCELLANEOUS
| 129 |
| 236000000 |
THERMOSTATIC
| 111 |
| 236490100 |
VENTILATOR TYPE
| 110 |
| 236051000 |
DISTANCE-ADJUSTED
| 97 |
| 236120100 |
MIXING FLUID OF DISSIMILAR TEMPERATURE
| 86 |
| 236044000 |
HUMIDITY CONTROL
| 86 |
| 236046000 |
WITH TIMING ELEMENT
| 33 |
| 236034000 |
COOLING RADIATOR
| 29 |
| 236020000 |
CLOSED FLUID HEATERS
| 14 |
| 236047000 |
HIGH AND LOW TEMPERATURE ALTERNATE
| 6 |
| 236010000 |
HOT-AIR FURNACE | 4 |
| 20110309155 | Thermostat Algorithm for Fully Modulating Furnaces - A method and system for operating a modulating furnace from a single-stage thermostat. The furnace control system may include a processor, a gas valve, a variable-speed motor, and a thermostat. The furnace control may execute a thermostat algorithm comprising the steps of: determining if a heating load needs to be satisfied; running burners at an intermediate input rate, a modulated input rate, and a maximum input rate for each respective first, second, and third time intervals until the heating load is satisfied; calculating a heating load requirement as function of the time intervals; and determining an initial input rate for a next cycle based on the calculated heating load requirement. | 12-22-2011 |
| 20140061322 | FURNACE CONTROLLER AND A FURNACE THAT CONTROLS A GAS INPUT RATE TO MAINTAIN A DISCHARGE AIR TEMPERATURE - Provided herein are embodiments of a multistage gas furnace, a controller therefor and a computer-usable medium having non-transitory computer readable instructions stored thereon for execution by a processor to perform a method for operating a gas furnace. In one embodiment, the gas furnace includes: (1) a burner, (2) a circulation fan and (3) a furnace controller. The furnace controller having: (3A) an interface configured to receive heating calls and a blower control signal, the blower control signal corresponding to an operating speed of the circulation fan and (3B) a processor configured to respond to the heating calls and the blower control signal by setting and adjusting a gas input rate for the burner that is based on the blower control signal and that corresponds to a discharge air temperature determined by a dedicated discharge air sensor associated with the furnace. | 03-06-2014 |
| 20090127346 | METHOD AND SYSTEM FOR CONTROLLING A MODULATING AIR CONDITIONING SYSTEM - A method for effecting cooperation between a modulating air conditioning system and a two-stage thermostat for satisfying an air conditioning load demand in a conditioned space includes: (a) operating the thermostat in a plurality of succeeding operating cycles to issue a first call signal or a second call signal indicating a first or second stage operation by the air conditioning system; the first and second stage operation being effected according to a first operating regimen to satisfy the air conditioning load demand; (b) operating the air conditioning system in response to the first and second call signals; the air conditioning system operating at a first power level when receiving the first call signal and operating at a predetermined second power level when receiving the second call signal; the first power level being established by the air conditioning system according a second operating regimen. | 05-21-2009 |
| 20130161402 | METHOD OF PREVENTING EXHAUST GAS FROM LEAKING OUT OF FOOD WASTE DISPOSER - A method of preventing exhaust gas from leaking out of a drying furnace is disclosed. In the method, the temperature of an exhaust passage and the temperature of a heater are measured, and turning on/off the heater is controlled in response to the measured temperatures. The present invention can be applied to all kinds of apparatuses having drying furnaces which are heated by heaters and thus generate the exhaust gas and can effectively prevent exhaust gas from leaking out of the apparatuses. Furthermore, the present invention can be more effectively applied to food waste disposers which heat food waste containing a large amount of water. In particular, the present invention is effective for circulation food waste disposers in which exhaust gas is condensed and re-supplied into a drying furnace as recirculation gas. | 06-27-2013 |
| 236067000 |
MOTORS | 4 |
| 20150028115 | METHOD FOR CONTROLLING A HEAT-GENERATING ELEMENT - A method of controlling a heat-generating element that generates heat when electric current is passed therethrough to control an ambient temperature within a space in which a sensor for sensing temperatures is at least partially located. The method includes sensing an initial temperature, and permitting passage of the electric current through the heat-generating element at 100 percent output for a preselected initial time period. After the electric current has passed through the heat-generating element for the preselected initial time period, a second temperature is sensed. A first temperature difference between the initial temperature and the second temperature is determined. A maximum error between a sensed temperature sensed at a selected time after the initial time period, and the ambient temperature at the selected time, is determined in accordance with a predetermined relationship between the first temperature difference and the maximum error. | 01-29-2015 |
| 20110095092 | FAN CONTROL CIRCUIT - A fan control circuit includes an integrated circuit (IC), a thermistor, and a transistor. A first input of the IC is connected to a fan power supply. A second input of the IC is connected to a stand-by power supply. A base of the transistor is grounded through the thermistor. An emitter of the transistor is connected to an output of the IC. A collector of the transistor is connected to a fan. | 04-28-2011 |
| 20120085832 | Method And System For Controlling A Blower Motor - A method of controlling a blower motor including: receiving a requested airflow from a thermostat; accessing an airflow table and determining an airflow closest to the requested airflow; using a location of the airflow closest to the requested airflow in the airflow table to access a control signal value in a control signal table; and using the control signal value to control the blower motor. | 04-12-2012 |
| 20140076979 | THERMOSTATIC ASSEMBLY FOR POWER MEMBERS OF AN ELECTRIC VEHICLE AND THE OPERATING PROCESS THEREOF - A thermostatic assembly for power members of an electric vehicle includes a pipe set having a main pipe and a recycle pipe, one end of the main pipe connected to one side of the pump, a plurality of temperature-adjusting pipes connected between another end of the main pipe and one end of the recycle pipe, another end of the recycle pipe connected to another side of the pump, a plurality of power members respectively set on the temperature-adjusting pipes, a input change valve set between the main pipe and each temperature-adjusting pipe, a output change valve set between the recycle pipe and each temperature-adjusting pipe, a controller electrically connected to the input change valve, the output change valve and each power member. Under this arrangement, the controller ranks a sequence of the temperature information and defines a sequence of the flow direction of the temperature-adjusting water. | 03-20-2014 |
| 236009000 |
COMBINED HEATER AND APARTMENT CONTROLLED | 2 |
| 20090057431 | SYSTEM AND METHOD FOR CONTROLLING A MULTI-ZONE HEATING OR COOLING SYSTEM - A control system is provided for automatically setting up and controlling a climate control system for a building having one or more zones and one or more thermostats in communication with the associated heating or cooling components of the climate control system. In some embodiments, the climate control system comprises one or more heating or cooling systems which may be controlled by one or more thermostats. In other embodiments, the climate control system comprises a thermostat, a heating and cooling system, one or more remote temperature sensors corresponding to at least some of the one or more zones within the building, and one or more dampers corresponding to at least some of the one or more zones within the building. | 03-05-2009 |
| 20150292751 | AIR HANDLING VENT CONTROL - Techniques for use with vent covers of furnace ductworks are described herein. A vent cover may include a fan to actively pull air from the ductwork and into a room at least in part in response to a number of open or closed vents in ductwork to which the vent cover is connected. Active air movement through the vent cover may lower air pressure and/or temperature within the ductwork and increase airflow through heat exchangers of the furnace, thereby compensating for zones created by closed vent covers. A system may monitor factors consistent with a furnace over-temperature event, such as furnace operation, closed vent covers, high air pressure or temperature in ductwork, etc. A fan of a vent cover may be turned on to actively draw air through a vent covered by the vent cover. The fan may turn off after conclusion of at least one of the monitored factors. | 10-15-2015 |
| 20090057431 | SYSTEM AND METHOD FOR CONTROLLING A MULTI-ZONE HEATING OR COOLING SYSTEM - A control system is provided for automatically setting up and controlling a climate control system for a building having one or more zones and one or more thermostats in communication with the associated heating or cooling components of the climate control system. In some embodiments, the climate control system comprises one or more heating or cooling systems which may be controlled by one or more thermostats. In other embodiments, the climate control system comprises a thermostat, a heating and cooling system, one or more remote temperature sensors corresponding to at least some of the one or more zones within the building, and one or more dampers corresponding to at least some of the one or more zones within the building. | 03-05-2009 |
| 20150292751 | AIR HANDLING VENT CONTROL - Techniques for use with vent covers of furnace ductworks are described herein. A vent cover may include a fan to actively pull air from the ductwork and into a room at least in part in response to a number of open or closed vents in ductwork to which the vent cover is connected. Active air movement through the vent cover may lower air pressure and/or temperature within the ductwork and increase airflow through heat exchangers of the furnace, thereby compensating for zones created by closed vent covers. A system may monitor factors consistent with a furnace over-temperature event, such as furnace operation, closed vent covers, high air pressure or temperature in ductwork, etc. A fan of a vent cover may be turned on to actively draw air through a vent covered by the vent cover. The fan may turn off after conclusion of at least one of the monitored factors. | 10-15-2015 |
| 236015000 |
FURNACE CONTROLLED | 2 |
| 20090206168 | THERMOSTATIC CONTROL DEVICE - A thermostatic control device for controlling the temperature of a food preparation or sanitation appliance comprises a temperature sensor, a controller in communication with the temperature sensor, and means for operatively connecting the controller to the appliance. When the temperature sensor senses that the actual temperature of the appliance is equal to or greater than a maximum threshold temperature, the controller shuts-off the compressor and overrides the flame sensor such that the appliance acts as if a flame is present. When the temperature sensor senses that the actual temperature of the appliance is equal to or less than a minimum threshold temperature, the controller starts-up the compressor and overrides the flame sensor such that the appliance acts as if a flame is absent. | 08-20-2009 |
| 20120241528 | APPLIANCE WITH THERMOSTATIC CONTROLS - An appliance comprises a burner and a compressor for supplying pressurized air to the burner in order to create a low-pressure area for siphoning fuel to the burner. A flame sensor senses for the presence or absence of a flame in the burner and a temperature sensor senses an actual temperature of the appliance. There is a controller in communication with the temperature sensor. The controller shuts off the compressor and overrides the flame sensor such that the appliance acts as if a flame is present when the temperature sensor senses that the actual temperature of the appliance is greater than a maximum threshold temperature. The controller starts up the compressor overriding the flame sensor such that the appliance acts as if a flame is absent when the temperature sensor senses that the actual temperature of appliance is less than a minimum threshold temperature. | 09-27-2012 |
| 20090206168 | THERMOSTATIC CONTROL DEVICE - A thermostatic control device for controlling the temperature of a food preparation or sanitation appliance comprises a temperature sensor, a controller in communication with the temperature sensor, and means for operatively connecting the controller to the appliance. When the temperature sensor senses that the actual temperature of the appliance is equal to or greater than a maximum threshold temperature, the controller shuts-off the compressor and overrides the flame sensor such that the appliance acts as if a flame is present. When the temperature sensor senses that the actual temperature of the appliance is equal to or less than a minimum threshold temperature, the controller starts-up the compressor and overrides the flame sensor such that the appliance acts as if a flame is absent. | 08-20-2009 |
| 20120241528 | APPLIANCE WITH THERMOSTATIC CONTROLS - An appliance comprises a burner and a compressor for supplying pressurized air to the burner in order to create a low-pressure area for siphoning fuel to the burner. A flame sensor senses for the presence or absence of a flame in the burner and a temperature sensor senses an actual temperature of the appliance. There is a controller in communication with the temperature sensor. The controller shuts off the compressor and overrides the flame sensor such that the appliance acts as if a flame is present when the temperature sensor senses that the actual temperature of the appliance is greater than a maximum threshold temperature. The controller starts up the compressor overriding the flame sensor such that the appliance acts as if a flame is absent when the temperature sensor senses that the actual temperature of appliance is less than a minimum threshold temperature. | 09-27-2012 |
| 236002000 |
INCUBATOR TYPE OF HEATER | 1 |
| 20110315783 | INSULATED CHAMBER WITH PHASE CHANGE MATERIAL - An insulated chamber having an interior chamber for storing items therein includes a phase change material to facilitate controlling the temperature of the interior chamber and the items. A heating device or cooling device may be used to melt or freeze the phase change material, which may be in various locations such as the walls of the chamber or packets which may serve as shelves and may be removable from the interior chamber with the items thereon. The packets may have recesses for receiving the items. The phase change material may be within capsules which may be within a liquid or a solid matrix. Controls may be provided to control humidity and carbon dioxide within the interior chamber. | 12-29-2011 |
| 236036000 |
HEATING RADIATOR | 1 |
| 20100051709 | SPACE HEATER WITH ELECTROSTATICALLY ASSISTED HEAT TRANSFER AND METHOD OF ASSISTING HEAT TRANSFER IN HEATING DEVICES - A space heater for heating air includes a duct for transporting air from an inlet to an outlet of the duct; a heating component; and an electrostatic discharge device within the duct for accelerating the gas through the duct from the inlet to the outlet. The electrostatic discharge device may include a high voltage power supply; at least one corona electrode connected to the high voltage power supply; and a collector electrode located proximate the corona electrode and connected to the high voltage power supply so as to induce a motion of the gas in a direction from the corona electrode toward the collector electrode. | 03-04-2010 |
