Felix Hoffmann, a German chemist, was searching for something to relieve his father's arthritis. In doing so, he "rediscovered" acetylsalicylic acid and in 1900, patented a stable process for developing it. Hence, we have aspirin.
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| Number | Title | Issue Date |
| 8183503 | Encapsulated heating system A reversible, submersible, encapsulated PTC heater is disclosed having: a disc-shaped sealable housing; a central disc comprised of a sheet mineral disposed within the sealable housing; cavities disposed within the central disc; PTC heating elements disposed within ... | 05/22/2012 |
| 7947929 | Control apparatus for dryer A control apparatus for a dryer is provided. The control apparatus provides a connection for a detecting circuit adapted to determine a clogging degree of the dryer. The control apparatus includes a power supply circuit including a heating coil arranged in a heater ... | 05/24/2011 |
| 7932480 | Multiple heater control system with expandable modular functionality A multiple heater control system includes cables, connectors, and junction boxes for user-friendly daisy chain connections of heater controllers and heaters in various configurations or combinations of individually controlled heater series and/or master and slave he... | 04/26/2011 |
| 7910863 | Temperature setting method of thermal processing plate, computer-readable recording medium recording program thereon, and temperature setting apparatus for thermal processing plate A thermal plate of a PEB unit is divided into a plurality of thermal plate regions, and a temperature is settable for each of the thermal plate regions. A temperature correction value for adjusting the temperature within the thermal plate is settable for each of the... | 03/22/2011 |
| 7897896 | Temperature setting method of thermal processing plate, computer-readable recording medium recording program thereon, and temperature setting apparatus for thermal processing plate In the present invention, a thermal plate of a heating unit is divided into a plurality of thermal plate regions, and a temperature can be set for each of the thermal plate regions. A temperature correction value for adjusting a temperature within the thermal plate ... | 03/01/2011 |
| 7897897 | Temperature setting method of thermal processing plate, computer-readable recording medium recording program thereon, and temperature setting apparatus for thermal processing plate In the present invention, a thermal plate of a PEB unit is divided into a plurality of thermal plate regions, and a temperature is settable for each of the thermal plate regions. A temperature correction value for adjusting the temperature within the thermal plate i... | 03/01/2011 |
| 7868271 | Control device and method for evaluating a control device A control device for converting a control movement along a control path into a control signal has the control path corresponding to different control stages or control types. The control device has two measuring tracks with a linearly changing resistance associated ... | 01/11/2011 |
| 7804046 | Acoustic heater and acoustic heating system In order that an object can be warmed through the use of thermoacoustic effect, the acoustic heating apparatus includes a first stack 3a sandwiched between a high-temperature-side heat exchanger 4 and a low-temperature input-side heat exchanger ... | 09/28/2010 |
| 7786411 | Heated computer mouse A heated mouse includes a shell having a heat-conductive part, a heating device installed in the shell, and an insulating layer. The heating device comprises a heat source. The insulating layer forms a closed space together with the heat-conductive part for accommod... | 08/31/2010 |
| 7781703 | Thermal analyzer The thermal analyzer comprises temperature deviation approximation formula holder which holds an approximate formula of a temperature deviation between sample and furnace and an elevating or lowering rate of the temperature of furnace during measuring the temperatur... | 08/24/2010 |
| 7659492 | Method for operating an electrical device A method for operating a device in which typically a very high current is generated when the device is turned on compared to the rated current, e.g. an analogue operated PTC heating device for a mobile device, such as a vehicle, is disclosed. In this method, the pow... | 02/09/2010 |
| 7635827 | Cooking apparatus with safety device A cooking apparatus powered by a detachable electrical control, the apparatus having a cooking surface and a support member hingedly attached to the cooking surface. The support member has a folded position generally parallel to the cooking surface and an extended p... | 12/22/2009 |
| 7547863 | System and method for control of supplemental appliances A system and method for controlling one or more appliances includes a control system where one appliance is in a condition such as having operated at full capacity for a predetermined period of time, and activation signal is sent to a secondary appliance. Appliances... | 06/16/2009 |
| 7544917 | Sealing construction A curd preparation vat provided with a sealing construction for a shaft passing through a wall of the vat, which sealing construction has at least one receiving space and a sealing ring included therein in operation, surrounding the shaft, wherein the sealing ring h... | 06/09/2009 |
| 7485832 | Method and circuit for preventing over-heat of heat-generating device A method and a circuit for preventing over-heat of heat-generating device which are provided with a trigger circuit and a microprocessor on a heater circuit. And the trigger circuit is connected with a power source and a heat-generating device for heating the heat-g... | 02/03/2009 |
| 7429719 | Self-regulating heater with a semiconductor heating element and method of heating A self-regulating heater including a semiconductor for converting electrical energy to heat. A temperature sensitive element is used to bias the semiconductor as a function of temperature. The heating element has an advantage that its maximum temperature is limited ... | 09/30/2008 |
| 7423240 | Pulse width modulated defroster A window defroster system that includes a heater grid and a controller. The controller includes a pulse width modulator configured to provide a driving signal to the heater grid. The driving signal has an initial heating portion and a pulsed portion. The initial hea... | 09/09/2008 |
| 7388171 | Power supply apparatus for welder Welding conditions are set for a power supply apparatus for use with a welding machine, using a control panel unit (96). A memory (105) stores therein welding conditions as set through the control unit (96), and holds the set welding conditions ... | 06/17/2008 |
| 7362591 | Power supply device and image forming apparatus When a detected current value deviates from a range between an upper limit value and a lower limit value, a pulse width adjustment operation for increasing or decreasing a currently set counter value is repeatedly performed at every operation time interval such that... | 04/22/2008 |
| 7319209 | Cooker control mechanism A manual control mechanism for a heating unit of a domestic cooker (1) having a front face is in the form of a twist grip (11, 12, 13) operable by rotation about a substantially horizontal axis parallel to the front face of the cooker. A plurality of s... | 01/15/2008 |
| 7277651 | Image forming apparatus and control method with power controlled in accordance with remaining amount of rechargeable battery power There are provided an image forming apparatus which can implement on-demand fusing with quick rise in temperature by using the upper current (power) limit of a commercial power supply more effectively and a control method for the apparatus. This image forming appara... | 10/02/2007 |
| 7277628 | Heater for aircraft potable water tank A heater (10) for installation on a potable water tank (12). The heater (10) comprises a blanket (14) including an electrical resistance heating element (16) and a connection pad (18) for electrically connecting the heating ... | 10/02/2007 |
| 7274007 | Control system for operating automotive vehicle components There is disclosed a control system for operating automotive vehicle components. The control system typically includes at least a control module programmed with instructions for controlling a heater, a ventilator or both. ... | 09/25/2007 |
| 7260337 | Image forming apparatus with control of commercial and battery power supplies to fusing device There are provided an image forming apparatus which can implement on-demand fusing with quick rise in temperature by using the upper current (power) limit of a commercial power supply more effectively and a control method for the apparatus. The image forming apparat... | 08/21/2007 |
| 7257341 | Image forming apparatus with power supply control for fusing control circuit There is provided an image forming apparatus which can implement on-demand fusing with quick rise in temperature by using the upper current (power) limit of a commercial power supply more effectively. This image forming apparatus includes a rechargeable battery devi... | 08/14/2007 |
| 7256371 | Temperature control method for positive temperature coefficient type heating element A controller adapted to control the temperature of a heating elements with a wide range of positive temperature coefficient of resistance, including very low values, using a sensor in line with the heating element. The controller is able to take account of non-const... | 08/14/2007 |
| 7254353 | Image forming apparatus and method of controlling commercial power supply to fusing means There are provided an image forming apparatus which can implement on-demand fusing with quick rise in temperature by using the upper current (power) limit of a commercial power supply more effectively and a control method for the apparatus. This image forming appara... | 08/07/2007 |
| 7247816 | Heating apparatus, fixing apparatus, and image forming apparatus A heating apparatus includes a heating roller that is heated by heating units, a main power supply that supplies power from an external power supply to the main heating unit, and an auxiliary power supply that supplies power to the auxiliary heating unit. The auxili... | 07/24/2007 |
| 7234730 | Traction control system The present invention provides a traction control system for a vehicle. The traction control system includes an energy radiator positionable in proximal relation to at least one of the vehicle tires. The traction control system further includes a control system havi... | 06/26/2007 |
| 7235900 | Switching apparatus and method for varying a phase line impedance of an electric power transport line section The switching apparatus and method are provided for varying the impedance of a phase line of a segment of an electrical power line. The phase line includes n conductors electrically insulated from each other and short-circuited among each other at two ends of the se... | 06/26/2007 |
| 7230209 | Dual voltage infinite temperature control for an electric cooking appliance A cooking appliance includes a cooktop having a heating zone including an associated heating element, as well as a control element for setting a desired cooking temperature for the heating zone. When the control element is rotated from a home position across a tempe... | 06/12/2007 |
| 7224257 | Physical quantity sensing element having improved structure suitable for electrical connection and method of fabricating same A physical quantity sensing element according to the invention includes an insulating layer and a sensing layer. The sensing layer is configured to generate an electrical signal as a function of a physical quantity applied thereto and has a surface that includes a f... | 05/29/2007 |
| 7209651 | Fluid-heating apparatus, circuit for heating a fluid, and method of operating the same A fluid-heating apparatus for heating a fluid and method of operating the same. The fluid-heating apparatus includes a heating element for heating a fluid surrounding the heating element and a control circuit connected to the heating element and connectable to a pow... | 04/24/2007 |
| 7193178 | Method and apparatus for controlling the heating of an oxygen sensor in a motor vehicle Methods and apparatus are provided for controlling the heating of an oxygen sensor in a motor vehicle. The apparatus comprises an oxygen sensor for measuring oxygen levels in exhaust gases of a motor vehicle. The oxygen sensor comprising a heater rod, an outer elect... | 03/20/2007 |
| 7180039 | Heater with burnout protection A heater is provided that has a temperature sensing control system which can be used for both temperature control and over-temperature protection against element burnout. The temperature control system is comprised of an inlet temperature sensing assembly positioned... | 02/20/2007 |
| 7175136 | Method and apparatus for detecting conditions conducive to ice formation A method for detecting ambient conditions conducive to ice formation. The method includes the steps of measuring at least one parameter selected from a group of parameters consisting of a static pressure, a total pressure, a total temperature, a dew point temperatur... | 02/13/2007 |
| 7157669 | Electric domestic appliance An electrical domestic appliance containing a main switch for turning the current power supply to the electrical domestic appliance on and off. The main switch having a predetermined turn-on time period during which the main switch must be actuated in order to move ... | 01/02/2007 |
| 7151239 | Heat treating apparatus and heat treating method A heat treating apparatus is provided to apply a heat treatment on a substrate. Prior to the heat treatment, an exclusive transfer mechanism transfers the substrate from a cooling plate onto a heating plate for heating the substrate. Before mounting the substrate on... | 12/19/2006 |
| 7124983 | Hybrid electrical ice protection system and method including an energy saving mode A hybrid electrical ice protection system implements three ice protection methods in various combinations. The ice protection methods include the fully-evaporative anti-ice protection method, the wet running anti-ice protection method, and the de-ice method. The par... | 10/24/2006 |
| 7104706 | Heating device The present invention relates to a heating device having at least a first heating element 102 for heating at least one protective sleeve 105, 602 arranged around at least a first uncoated optical fiber section 501, 603. Said sleeve 105, 602 | 09/12/2006 |