| Patent Number |
Title Of Patent |
Date Issued |
| D369562 |
Pneumatic sensor |
May 7, 1996 |
|
| D368668 |
Pneumatic actuator |
April 9, 1996 |
|
| D348936 |
Spa control panel |
July 19, 1994 |
|
| D263651 |
Combined key holder and light |
April 6, 1982 |
|
| D262241 |
Combined key holder and light |
December 15, 1981 |
|
| 6246193 |
Encoderless rotor position detection method and apparatus |
June 12, 2001 |
| A rotating flux vector is set up in a motor or generator's rotor by simultaneously energizing two phase windings while the rotor remains stationary, wherein each phase winding may be energized by the same or different excitation voltages. Respective tap voltages are then recorded at |
| 6150778 |
Sensorless rotor position detection for switched reluctance machines having irregular poles |
November 21, 2000 |
| A system for detecting the position of a rotor for a switched reluctance (SR) machine having an irregular pole configuration. The system does not require the use of a conventional sensing device, and provides accurate position information, without disrupting operation of the machine. A |
| 6137256 |
Soft turn-off controller for switched reluctance machines |
October 24, 2000 |
| A circuit for controlling the operation of switched reluctance machines (i.e., motor or generator) having a plurality of phase windings. The circuit slows down the initial "turn off" of the phase windings to eliminate an abrupt reduction in the current flowing therethrough. This redu |
| 6129284 |
Integrated appliance control system |
October 10, 2000 |
| A fully integrated electronic appliance controller for controlling the operation of a appliance (e.g., a gas-fired water heater or boiler). The controller includes an integrated intelligent control system; enhanced safety features including an igniter current proving circuit, a flame |
| 6114789 |
Switched reluctance motor |
September 5, 2000 |
| A switched reluctance motor comprised of a stator having a plurality of evenly spaced, radially oriented, like stator poles that define a gap between adjacent stator poles. Windings for three phases are wound about the stator poles wherein a stator pole of a first phase is disposed c |
| 6060809 |
Staggered pole switched reluctance motor |
May 9, 2000 |
| A switched reluctance machine includes a first element having a plurality of uniform poles and a second element having a first pole and a second pole. The first pole has a wide face and the second pole has a narrow pole face. The first and second elements are disposed for movement relati |
| 6059195 |
Integrated appliance control system |
May 9, 2000 |
| A fully integrated electronic appliance controller for controlling the operation of a appliance (e.g., a gas-fired water heater or boiler). The controller includes an integrated intelligent control system; enhanced safety features including an igniter current proving circuit, a flame |
| 6054819 |
Driving circuit for switched reluctance machines |
April 25, 2000 |
| A driving circuit for a multi-phase switched reluctance (SR) machine, wherein a reduced number of wire connections between the machine and driving circuit are needed. In addition, one embodiment of the driving circuit requires the use of fewer individual diodes for the circuit design |
| 6051903 |
Switched reluctance motor |
April 18, 2000 |
| A switched reluctance motor driven by a two-phase source, includes a stator having an even number of evenly-spaced, like stator poles defining a gap between each stator pole; windings for each of the two phases of the motor wound about stator poles that are circumferentially separated by |
| 6046568 |
Staggered pole switched reluctance motor |
April 4, 2000 |
| A switched reluctance machine includes a first element having a plurality of uniform poles and a second element having a first pole and a second pole. The first pole has a wide face and the second pole has a narrow pole face. The first and second elements are disposed for movement relati |
| 6028385 |
Switched reluctance motor |
February 22, 2000 |
| A switched reluctance motor having a stator with a plurality of radially oriented stator poles. Windings for three phases are wound about the stator poles wherein a stator pole of a first phase is disposed circumferentially between a winding and an associated stator pole of a second |
| 6018150 |
Method of heating a medium to a desired temperature |
January 25, 2000 |
| A method for heating a medium in a heating apparatus comprising establishing a setpoint temperature for the medium, determining thermal characteristics of the heating apparatus and the medium during a first mode of operation, the thermal characteristics establishing an idle-on pulse |
| 5969454 |
Switched reluctance motor |
October 19, 1999 |
| A switched reluctance motor, comprising:a stator formed from a magnetically permeable material, having "n" number of evenly spaced, radially oriented, like stator poles, the stator poles having like stator pole faces and forming a uniform gap between adjacent stator poles;windings for tw |
| 5931655 |
Temperature control system with thermoelectric and rechargeable energy sources |
August 3, 1999 |
| A temperature control system for a gas-fired appliance which uses a thermoelectric device to develop power for recharging a primary energy source, such as a rechargeable battery. The present invention provides a reliable and efficient system for controlling and powering a temperature |
| 5852334 |
Staggered pole switched reluctance motor |
December 22, 1998 |
| A switched reluctance machine includes a first element having a plurality of uniform poles and a second element having a first pole and a second pole. The first pole has a wide face and the second pole has a narrow pole face. The first and second elements are disposed for movement relati |
| 5827556 |
Electronic controller for heating apparatus |
October 27, 1998 |
| A controller for controlling the cooking of food within a cooking apparatus. The controller is comprised of a temperature sensor input for receiving an output of a temperature sensor and a system for initiating a cook of a food product based upon a set cook temperature and a set cook |
| 5819721 |
Flow control system |
October 13, 1998 |
| A control system for regulating a flow rate of a heat transfer fluid in a heat transfer system, the heat transfer system having a heat transfer fluid flow path, flow control device for creating flow along the path, a fuel source for providing a combustible fuel to the path, an air source |
| 5809994 |
Electronic control system for a heating apparatus |
September 22, 1998 |
| A temperature control system for melting a solid cooking medium in a deep fat fryer comprising a chamber for containing a cooking medium; a heating surface within the chamber for heating the cooking medium; a heating device for heating the heating surface; a temperature sensor in the |
| 5722289 |
Cooking appliance with level detection apparatus and method |
March 3, 1998 |
| A deep fat fryer system includes a vat for holding a quantity of cooking medium. A tube or conduit is disposed between a position in the vat corresponding to a lower desired level of cooking medium in the vat and a blower for creating a vacuum in the tube. A pressure sensitive switch is |
| 5652493 |
Polyphase split-phase switched reluctance motor |
July 29, 1997 |
| A switched reluctance d.c. motor having a plurality stators has been disclosed. Each stator comprises phase windings for energizing a set of stator poles. The stator poles are distributed about the circumference of the stator yoke. Two phases activated in succession are associated with |
| 5601071 |
Flow control system |
February 11, 1997 |
| A control system for regulating a flow rate of a heat transfer fluid in a heat transfer system, the heat transfer system having a heat transfer fluid flow path, flow control device for creating flow along the path, a fuel source for providing a combustible fuel to the path, an air source |
| 5596514 |
Electronic control system for a heating apparatus |
January 21, 1997 |
| An electronic control for a heating apparatus and specifically a deep fat fryer is provided. The electronic control includes a temperature sensor for sensing the temperature of a cooking medium during a cooking cycle. Cooking medium temperature sensed during the cooking cycle is utilized |
| 5582755 |
Apparatus and method for classifying a medium in a cooking chamber |
December 10, 1996 |
| A deep fat fryer includes a controller operatively connected to a heating element for controlling the operation thereof to apply heat to a cooking chamber. A temperature sensor is disposed in the cooking chamber for measuring the temperature in the cooking chamber and communicating the |
| 5575194 |
Electronic control system for a heating apparatus |
November 19, 1996 |
| An electronic control system for controlling a heating apparatus. The control system accurately controls the temperature of a medium, while minimizing the wear of heating element components. |
| 5471022 |
Pneumatic acutated switch |
November 28, 1995 |
| A diaphragm assembly for movement in response to a pressure increase exerted thereon comprised of a resilient flexible diaphragm having a first surface with a predetermined profile when said diaphragm is in a neutral, unflexed condition, the diaphragm having an opening formed therethroug |
| 5297428 |
Salt level monitoring device |
March 29, 1994 |
| A device for monitoring the level of salt in a brine tank. The device includes a housing and a circuit within the housing connectable to an electric power source. An indicator is connectable to the circuit for indicating the existence of a first electrical state and a second electric |
| 4844333 |
Spa side control unit |
July 4, 1989 |
| A control unit for a spa or hot tub system is disclosed. The control unit is safe and protects the user from electric shock when operating the various spa equipment. Also, the unit allows the control and operation of all the spa equipment from a single location. In one embodiment of the |
| 4281235 |
Method for welding ferrous alloys to aluminum and aluminum alloys or refractory metals |
July 28, 1981 |
| A method for welding ferrous alloys to aluminum alloys or refractory metals includes the step of coating the portion of the ferrous alloy to be welded with an intermediate metal compound or element such as gold alloy or silver. An accelerated particle beam is directed at the area to be w |
| 4271401 |
Safety trailer hitch |
June 2, 1981 |
| A safety trailer hitch including a mechanical connection to connect a trailer to a tow vehicle with the mechanical connection secured by a latch, a backup connection between the trailer and the tow vehicle that is releasably secured to the tow vehicle, a first, normally open switch that |
