Bizarre Patents
An automatic bed maker which uses the expansion of inflatable bladder to straighten, align, and tuck-in bed-cover assembly.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7673809 | Thermostat relay control The present invention, in illustrative embodiments, includes methods and devices for reducing power consumption in a thermostat by adjusting pulse levels (duration and/or voltage) that are used to control an HVAC relay in light of variations of ambient conditions or... | 03/09/2010 |
| 7364353 | Dynamic correction of sensed temperature A thermostat (10) for sensing the ambient temperature in an environment includes an enclosure (100) housing a temperature sensor (20) for sensing the temperature within the enclosure, a temperature display device (30), a liquid crystal di... | 04/29/2008 |
| 7350974 | Temperature detection circuit A temperature detection circuit according to the present invention includes a potential generating part and a temperature detection part. The potential generating part generates a potential according to an environmental temperature, and the temperature detection par... | 04/01/2008 |
| 7208955 | Power relay or switch contact tester Embodiments of the invention include a test circuit having an auxiliary low power test signal generator, filters, and a detector to test a power switch. The generator sends an auxiliary low power test signal having a different frequency than a power signal for the s... | 04/24/2007 |
| 7150156 | Product simulating probe and method A probe and method for simulating refrigerated product temperature includes a housing containing a thermal mass having thermo-physical properties similar to refrigerated food product, a temperature sensing element operable to measure the temperature of the thermal m... | 12/19/2006 |
| 7104462 | Low noise solid-state thermostat with microprocessor controlled fault detection and reporting, and programmable set points A low noise solid state thermostat is provided which includes a thermostat input operatively configured to be coupled to a temperature sensor; a comparator for comparing an output of the temperature sensor to a predefined setpoint temperature; and solid-state switch... | 09/12/2006 |
| 6963240 | Damping of LC ringing in IC (integrated circuit) power distribution systems A structure and method for damping LC (inductance-capacitance) ringing in integrated circuit (IC) power distribution systems. The structure comprises a resistance electrically connected in parallel with a plurality of electrical switches. The resistance and electric... | 11/08/2005 |
| 6935572 | Temperature differential eliminator The present invention relates to a device and method for providing precise temperature control using inexpensive temperature controllers and/or thermostats. Specifically the invention provides modifications to either a temperature controller and/or a thermostat that... | 08/30/2005 |
| 6889762 | Vehicle air conditioning and heating system providing engine on and engine off operation An air conditioning system for use in an over-the-road or off road vehicle is provided that allows operation during both engine on and engine off conditions. The system utilizes a variable speed, motor driven compressor controlled by an intelligent power generation ... | 05/10/2005 |
| 6886754 | Thermostat operable from various power sources A thermostat is operable from battery, common-wire (“C-wire”), or furnace relay power. The thermostat includes a power source selector, such as a jumper wire, that is set when the thermostat is installed in a heating system. In a gas millivolt heating system, th... | 05/03/2005 |
| 6691923 | Low noise solid-state thermostat A low noise solid-state thermostat is provided designed to operate on AC power over a wide range of frequencies (e.g., from 0 Hertz (Hz) to 1000 Hz). The thermostat incorporates a soft start turn ON/OFF feature which reduces electromagnetic emissions (e.g... | 02/17/2004 |
| 6597275 | Intrusion barrier for thermostat A plug or grommet fits into the opening in the back plate of a thermostat and blocks or diverts intrusion air from entering the interior of the thermostat housing from the wall penetration for the thermostat wires. The thermostat wires are fed through the... | 07/22/2003 |
| 6549866 | Digital electronic control unit A digital electronic control unit that provides an efficient, miniature, reliable and cost-effective control mechanism for use in household and commercial appliances. It further is capable of real-time-based control, remote control and networking.... | 04/15/2003 |
| 6354508 | Electronic temperature controller, particularly for refrigeration appliances The invention concerns an electronic temperature controller, particularly for refrigeration appliances, with mains connections (3, 4) and an electronic circuit (1) having a power supply (7), a control unit and measuring and setting elements (9, 10, 11). T... | 03/12/2002 |
| 6336593 | Multipoint digital temperature controller The present invention relates to an electronic digital thermostat control unit comprising a linear temperature sensing element (1) connected to an A-D converter (3), a sensitivityand offset correction circuit (4), digital comparators (5, 6), digital noise... | 01/08/2002 |
| 6216956 | Environmental condition control and energy management system and method An indoor environmental condition control and energy management system includes a plurality of inputs. A user input receives user input parameters including a desired indoor environmental condition range for at least one energy unit price point. An indoor... | 04/17/2001 |
| 6145752 | Temperature monitoring and control system This invention generally relates to a thermostat system for use in thermal regulation of an environment. This invention involves thermal regulation systems for controlling the temperature of an environment and the thermostat systems used in thermal regula... | 11/14/2000 |
| 6094920 | Circuit and method for controlling temperature without using CPU and software A temperature control circuit comprises a temperature detection circuit for detecting the temperature of an object and outputting a temperature detection voltage, a first reference voltage generation circuit for generating a first reference voltage that c... | 08/01/2000 |
| 6062483 | Electronic thermostat An electronic thermostat for a temperature control in a vehicle uses a connection to a pre-existing, variable current source representing a temperature the desired ambient temperature. A temperature control unit has a temperature sensor to sense the ambie... | 05/16/2000 |
| 6032867 | Flat plate thermostat and wall mounting method The present invention provides preferably one or optionally two printed circuit boards that project from supports on a single cover plate into the wall opening formed preferably for a standard 3.5 inch by 2 1/16 inch junction or outlet box. Screw holes ar... | 03/07/2000 |
| 6006996 | Electronic thermostat control unit and its use in multipoint temperature controller for refrigeration and heating systems This invention relates to an electronic digital thermostat consisting of a single p-n junction as the temperature sensing element connected to an A-D converter, a sensitivity and Offset Correction circuit, digital comparators, digital noise filters, a con... | 12/28/1999 |
| 5957374 | Voltage boosting system and method for electronic thermostat relay A microprocessor-controlled electronic thermostat system and method that detects the status of a thermostat output relay to determine if the relay has been set to a state as requested by the microprocessor and, if not, providing a boosted or increased vol... | 09/28/1999 |
| 5816492 | Room temperature sensor and thermostat control device A thermostat control having improved user controls wherein an analog version contains a binary coded switch for selectively setting a setpoint temperature. The binary coded switch is configured to have discrete positions corresponding to a plurality of se... | 10/06/1998 |
| 5744973 | Resistance to frequency circuit for measuring ambient temperature on a thermostat A resistance to frequency circuit for measuring the ambient temperature on a thermostat. The temperature measuring circuit comprises a first Schmitt trigger NAND gate, a rectifier, a capacitor of which one terminal is electrically connected to ground, a f... | 04/28/1998 |
| 5573179 | Method for controlling environmental conditions of living organisms based upon time integrated variables A method for controlling environmental conditions or variables to which living organisms are exposed employs time integrated variables (TIVs) to assist in controlling the conditions. In one example, temperature in a poultry house is controlled, in part, a... | 11/12/1996 |
| 5520327 | Electronic thermostat having safety feature An electronic thermostat having a safety feature includes a controller which sends control signals to circuitry used for activating a system for conditioning air. The control signals are used to control the active state of the system for conditioning air.... | 05/28/1996 |
| 5485954 | Reduced profile thermostat A thermostat that includes a subbase having a back surface designed to be mounted conformal with a surface and an inner surface that has a portion of selected electrical components mounted thereon, including a first electrical communication device. The su... | 01/23/1996 |
| 5467921 | Thermostat having short circuit protection An electronic thermostat having a short circuit protection feature has a controller which sends control signals to circuitry used for activating and deactivating a system for conditioning air. Short circuit protection circuitry monitors the circuitry with... | 11/21/1995 |
| 5257735 | Automatic room environment controller An automatic room environment controller which avoids the unnecessary improving operation for the room environment, the controller comprising: member for detecting condition of room environment; member for improving means for improving the condition of th... | 11/02/1993 |
| 5199637 | Electronic thermostat having correction for internally generated heat from load switching The apparatus controlling operation of a digital thermostat mounted in an enclosure corrects the internally measured temperature for heat generated within the thermostat enclosure by the switching element controlling operation of the load, typically a HVA... | 04/06/1993 |
| 5102042 | Electrical system for controlling the operation of a heat exchanger, control device therefor and methods of making the same An electrical system for controlling the operation of a heat exchanger, control device therefor and methods of making the same are provided, the system comprising a first electrical transformer, a relay for causing the heat exchanger to be in one conditio... | 04/07/1992 |
| 5002226 | Thermostat with mechanical heat anticipation and droop control An electromechanical thermostat for controlling the on/off cycle of a heating/cooling unit. The thermostat has a temperature sensing element with a variable position according to the sensed temperature. Associated with the sensing element is a switch memb... | 03/26/1991 |
| 4875342 | Temperature control means for a refrigerating apparatus A temperature control device for a refrigerating apparatus is disclosed. The temperature control device is provided with a controlled temperature determining circuit to determine the temperature condition of the refrigerating chamber in accordance with th... | 10/24/1989 |
| 4827731 | Temperature control means for a refrigerating container A temperature control means which is suitable for use with small, transferable refrigerated containers is described. The temperature control means includes a plurality of switches which determine the desired temperature level in the container by switch co... | 05/09/1989 |
| 4824013 | Temperature controller A line voltage controller/thermostat for heating and cooling systems. The controller includes a bulb-and-capillary temperature sensor operating a line voltage load current switch. The load current switch is back-mounted on a deck plate adapted for coverin... | 04/25/1989 |
| 4776514 | Two wire line voltage thermostat A two wire line voltage thermostat has first and second terminals for receiving line voltage power and for connection to a load, a transformer having a current primary winding, a voltage primary winding and a secondary winding, a primary controller connec... | 10/11/1988 |
| 4641778 | Electronic water heater thermostat system An electronic water heater thermostat system for controlling the heating of water in residential and commercial water heaters, the system incorporating improved circuitry for controlling the water temperature set point and hysteresis and enabling the use ... | 02/10/1987 |
| 4638850 | Electronic thermostat An electronic thermostat for controlling multiple temperature altering apparatus of an animal enclosure or the like. A voltage divider to produce a plurality of temperature sensor signals which are used to produce primary or override actuation signals. Th... | 01/27/1987 |
| 4566861 | Method of and apparatus for operating a diffusion pump A diffusion pump is operated by controlling the rate at which vapor is evaporated from a pool in response to an indication of the effectiveness of a fluid in cooling a condensation surface for the vapor as derived by sensors for the temperatures of the po... | 01/28/1986 |
| 4504010 | Temperature control device An improved temperature control device which is so arranged that, by obtaining an average value of digital output amount of an A/D converter, if variation of the above digital output amount average value at each sampling is within predetermined dead zone ... | 03/12/1985 |
