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| Number | Title | Issue Date |
| 8138455 | Programmable delay introducing circuit in self timed memory A novel method for introducing delays in self timed memories is disclosed. In the proposed method, delays are introduced by introducing a capacitance on the path of signal to be delayed. The capacitances are realized by using idle lying metal layers in the circuit. ... | 03/20/2012 |
| 7638739 | Thermostat having a discardable protective cover A removable cover is provided that includes a flexible elastic material forming a cover front portion and a plurality of edge portions. The plurality of edge portions are configured to be stretched over at least a portion of two or more sides of a thermostat, such t... | 12/29/2009 |
| 7582849 | Thermal head, driving method and thermal head drive circuit A thermal head driving method of driving thermal heads is disclosed. The method includes a step of dividing the thermal heads into plural groups, providing for each of the groups a common potential terminal, a step of using a drive circuit to drive the thermal heads... | 09/01/2009 |
| 7566845 | Overheat protection circuit for power supply devices and direct-current power supply device In an overheat protection circuit for power supply devices in the present invention, overheat protection is provided by using a Schottky barrier diode (SBD) in place of a dedicated thermosensor. The overheat protection circuit is designed to flow reverse leakage cur... | 07/28/2009 |
| 7514652 | Spa with circuit for detecting excessive ground current A spa heater/control includes sensors and processors to monitor and display indicia of common failures. The heater/control includes voltage sensors and processing to measure proper power connections to the heater/control. The spa heater/control further monitors vari... | 04/07/2009 |
| 7421194 | Quartz heater tube module Disclosed is a quartz heater tube module in which the individual quartz heater tube proper has a first and a second coverings covered on the outer surface of the glass tube. The first covering is provided with a first electrode in electrical connection with an elect... | 09/02/2008 |
| 7390992 | Heat blanket The heat blanket (10) comprises an operative unit (20) and a control/power supply unit (40) which can be electrically connected on one side to the power mains and on the other side to the operative unit (20). The operative unit (20... | 06/24/2008 |
| 7351937 | Control circuits for hot melt adhesive heater circuits and applicator heads An electronic control circuit, for use in connection a hot melt adhesive dispensing system having a relatively large applicator head, has a plurality of heater circuits and a plurality of temperature sensors disposed upon different regions of the relatively large ap... | 04/01/2008 |
| 7342329 | Power supply for electrical domestic appliances and domestic appliances for co-action with such a power supply The invention relates to a power supply for electrical domestic appliances, comprising: at least one connection to the mains electricity supply, and at least one connector for releasable electrical coupling of the power supply to a domestic appliance, wherein the po... | 03/11/2008 |
| 7332692 | Redundant control circuit for hot melt adhesive assembly heater circuits and temperature sensors A redundant control circuit comprises a pair of heater circuits for heating a hot melt adhesive hose assembly to a predetermined temperature level, and a pair of temperature sensors which are used to sense the temperature of the hot melt adhesive hose assembly and t... | 02/19/2008 |
| 7326887 | Modified reset motor protector A self-hold motor protector (10) has an open metallic housing (12) in which a thermostatic disc (14) carrying a movable electrical contact (18) is cantilever mounted. A heater seat plate (20) is mounted in the housing in electrical... | 02/05/2008 |
| 7293914 | Temperature detecting heater with indicating structure for aquarium A temperature detecting heater with an indicating structure for an aquarium, the temperature detecting heater mainly has an indicating structure including a control circuit and a two-color LED indicating lamp in its circuitry. After the temperature detecting heater ... | 11/13/2007 |
| 7291813 | Controller for electric article for human body A controller for an electric article includes a voltage-stabilizing circuit for supplying voltage stable DC power, a microprocessor, a temperature-detecting circuit, a protecting circuit, a control circuit, and a switch circuit. The temperature-detecting circuit inc... | 11/06/2007 |
| 7284365 | Electric heated catalyst failure diagnostic device It is an object to provide an electric heated catalyst failure diagnostic device that is compact, lightweight, inexpensive, and can accurately detect a disconnection of the heater and an abnormality in a circuit from the power supply to the heater with a simple conf... | 10/23/2007 |
| 7286752 | Device for heating a liquid for domestic appliance, domestic appliance fitted with said device A device for heating a liquid for a domestic appliance, comprising a main body (1) which is connected to a reservoir of liquid and associated with an additional element (3) covering a surface of the main body (1) in order to define a liquid circ... | 10/23/2007 |
| 7241979 | Temperature controller and temperature control method, and heating wire therefor The present invention relates to a non-electromagnetic wave temperature controller for a heating cable and a method therefor, which can perform heating and temperature detection in a non-electromagnetic fashion without short-circuiting one end of the heating cable t... | 07/10/2007 |
| 7238312 | Method and apparatus for forming apertures in foamed polystyrene and other foamed plastic panels An apparatus is adapted to form a plurality of apertures in a panel made from a meltable foamed plastic material. The apparatus has a movable panel support device for supporting said panel and a heating array. The heating array has a plurality of heating elements mo... | 07/03/2007 |
| 7236692 | Spa heater system and methods for controlling A spa system comprises an electrically powered heater. The electrically powered heater comprises a heating element capable of drawing a rated current when switched on to an AC line voltage. An electronic control system is programmed to control the heating element to... | 06/26/2007 |
| 7227107 | Safety shut off for a portable cooker A cooking facilitator which is preferably portable and well suited for use as both a timer and cooking process facilitator having particular usefulness with cooking objects which have a characteristic associated with establishing a cooking time such as the weight of... | 06/05/2007 |
| 7222527 | Automatic level sensing device used in massage tub An automatic water level sensing device is used in a massage tub. The massage tube comprises: a plurality of water circulation devices and a switch; each water circulation device having at least one suction opening, at least one water outlet and a motor; the automat... | 05/29/2007 |
| 7221862 | Control and method for operating an electric water heater A water heater control for an electric water heater operates according to at least one fixed hardware and/or software temperature limit and a variable software temperature limit. The control monitors a temperature of water in a tank of the electric water heater to d... | 05/22/2007 |
| 7202449 | Brewing machine power management system and method A power management system for managing the power supplied to a plurality of warming elements in a brewing machine, so as to conform to pre-set power safety requirements. ... | 04/10/2007 |
| 7196482 | PWM controller with automatic low battery power reduction circuit and lighting device incorporating the controller A controller for controlling a voltage applied to a load from a power source includes a square wave producing circuit for connection in the circuit with the battery and the lamp. The square wave producing circuit produces a variable duty cycle square wave for contro... | 03/27/2007 |
| 7193501 | Enclosure system allowing for hot work within the vicinity of flammable and combustible material An enclosure constructed around an area at which hot work is to be performed at a facility containing flammable or combustible material. Hot work includes such things as welding, torch cutting, grinding and the like. Facilities include petroleum drilling and product... | 03/20/2007 |
| 7189943 | Heated motorcycle handgrips A heated motorcycle handgrip is securable to a motorcycle handlebar and includes a grip housing that has a first end adapted to receive the handlebar, and a second end opposite the first end. The grip housing includes a heating element that is operable to provide a ... | 03/13/2007 |
| 7180037 | Heater wire and control therefor An improved control device and method is usable with flexible heating wire having a conductive core with a Negative Temperature Coefficient (NTC) layer and a helically wound heater conductor within an insulative outer sheath. The conductive core is coupled to a cont... | 02/20/2007 |
| 7180038 | Device for switching on and off several heating mechanisms of cooking equipment as well as cooking equipment with such a device A control is provided for switching on and off two heating devices of a hob forming a hotplate. In cyclic manner the continuous energy or power generation level can be adjusted by an energy control device. A temperature limiter monitors a maximum temperature via the... | 02/20/2007 |
| 7148643 | Driving a single-phase motor A single-phase motor driving circuit includes a controller for outputting a control signal to drive a single-phase motor in a period in which a saw-tooth voltage of a predetermined cycle is larger than a duty setting voltage based on a result of comparing a detected... | 12/12/2006 |
| 7138611 | Heating structure and its temperature control method A heating structure and its temperature control method having therein a heat generating line and a controller. The heat generating line includes a PTC element and a short circuit line serially connected having an insulating fusible layer separating them. When a user... | 11/21/2006 |
| 7135969 | Theft deterrent for home appliances A security system for protecting home appliances includes an alarm system with a wireless link to the protected appliances. The appliances include circuitry that disables the appliance in response to a signal from the alarm system. The appliance or alarm system can ... | 11/14/2006 |
| 7112768 | Temperature control system for a bathing unit A temperature control system for a bathing unit that includes a water holding receptacle and a heating module. The temperature control system comprises a plurality of actuators associated to the heating module and a temperature regulation device in communication wit... | 09/26/2006 |
| 7105781 | Apparatus and method for detecting abnormal temperature rise associated with a cooking arrangement Apparatus and a method are provided for detecting an abnormal rise in temperature associated with a combination of a cooking utensil (10) and a cooking zone (8) of a cooking surface (4) overlying an electric heater (6). The apparatus has ... | 09/12/2006 |
| 7093530 | Coffeemaker pod carrier A brewing apparatus pod carrier including a frame forming a first pod receiving cavity on a first side of the frame and a second pod receiving cavity on a second opposite side of the frame, and a liquid flow path between the first and second pod receiving cavities. ... | 08/22/2006 |
| 7093533 | Brewing apparatus hot water discharge head A brewing apparatus including a housing having a movable lid; a water heater connected to the housing; and a hot water discharge head connected to the lid for delivering hot water from the hot water heater in a downward direction. The hot water discharge head includ... | 08/22/2006 |
| 7091848 | Enclosure system for hot work within the vicinity of flammable or combustible material One or more enclosures constructed about one or more objects at which hot work is to be performed at a facility containing flammable and/or combustible material. Hot work includes such things as welding, torch cutting, grinding and the like that produces heat, spark... | 08/15/2006 |
| 7087867 | Programmable oven with broiler temperature interlock The oven includes a lower electrical heating element which is located below a support member. Two laterally spaced apart upper electrical heating elements are supported above the support member and the food to be cooked. An electrical system is provided for supplyin... | 08/08/2006 |
| 7084377 | Heated device and method of redundant temperature sensing A device for carrying a heated liquid, and controlling the temperature of the heated liquid includes a liquid conveying element including a passage for carrying the heated liquid. First and second temperature sensing devices are operatively associated with the liqui... | 08/01/2006 |
| 7081601 | Voltage selection mode for a cooking appliance A cooking appliance includes an oven cavity, an electric heating element and a rapid cook heating system both of which being operable on either one of first and second supply voltages, and a controller including a memory module having stored therein first and second... | 07/25/2006 |
| 7078657 | All disassembleable electric-heating apparatus The present invention discloses an all disassembleable electric-heating apparatus comprising a shell, a cover, a reservoir installed inside said shell, an electric heater installed inside said reservoir and immersed in the liquid contents of said reservoir in workin... | 07/18/2006 |
| 7069168 | Food quality and safety monitoring system The present invention provides a food quality and safety monitoring system and method for evaluating food characteristic management for improving the safety of perishable food products for human consumption and the shelf life of perishable food product. A sensor wit... | 06/27/2006 |
