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Class 219/495 - Thermomagnetic


Subclass of Class 219 - Electric heating
Definition: Subject matter compromising or including magnetic apparatus
No. of patents: 18
Last issue date: 04/15/2008


NumberTitleIssue Date
7358464Method for temperature measurement in a household appliance
A method for temperature measurement in a household appliance includes generating a high-frequency electromagnetic excitation wave of a predefined transmit frequency. The transmit frequency is selected from a frequency band including temperature-dependent resonant f...
04/15/2008
7337019Integration of fault detection with run-to-run control
Semiconductor wafers are processed in conjunction with a manufacturing execution system using a run-to-run controller and a fault detection system. A recipe is received from the manufacturing execution system by the run-to-run controller for controlling a tool. The ...
02/26/2008
7279660Apparatus for brewing beverages
An electrically heated water kettle comprises a vessel for holding a liquid for extraction of tea, coffee or other food material. The vessel includes a partially open immersible container sized to allow the passage of water between the walls of the vessel. The conta...
10/09/2007
7247820Heat sink and information processing device
A heat sink that is disposed on a heating element and absorbs the heat generated by the heating element includes: a contact surface to which recessed grooves are formed and the region of which excluding the recessed grooves is in contact with the heating element; in...
07/24/2007
6911627Heating element device, heating element mounted structure, temperature control circuit, temperature control apparatus, and module
A heating element device has a laminate of a plurality of heating element plates, each of the heating element plates having an insulator and a resistor, which is capable of generating heat upon the supply of electric power, provided on the insulator. The plurality o...
06/28/2005
6413630Decorative film
A decorative film having an excellent decorative effect, excellent three-dimensional curvature emulating properties, three-dimensional curvature formability, long-term weather resistance and stain resistance. The decorative film comprises one or more tran...
07/02/2002
6121593Home appliances provided with control systems which may be actuated from a remote location
A self-contained refrigerator and oven, for refrigerating and cooking food in the same enclosed chamber, which can be actuated by the operator from a variety of remote locations around the world via telephone or the internet. The heating element may be a ...
09/19/2000
6104008Thermal limiter for stove heater
A temperature sensing switching device has a soft ferrite material coupled radiatively to a body and non-radiatively to a heat sink. The ferrite material is arranged so that its temperature is above its curie point when the body is above a desired limit t...
08/15/2000
5197375Conveyor oven control
A control device for a multi-zone conveyor oven constructed according to the present invention comprises a microprocessor-based controller, appropriate control software, a keyboard and display for interaction with a user, means for sensing the conveyor sp...
03/30/1993
4803341Cordless curling iron with separate electric heating station
An indirectly heatable curling iron (10) has a curling mandrel (12) inserted into the cradle (17) of an electric heating assembly (18) of a separate heating station (11) to establish an intimate thermal contact therebetween for heating the mandrel (12) to...
02/07/1989
4691095Hair roller heating device with thermomagnetic roller temperature control
A hair styling device includes a hair roller that defines a conical inner chamber open at its larger end and has a jacket containing a heat storing material, a cooperating heating spindle for heating the hair roller, the heating spindle having a conical o...
09/01/1987
4610142Apparatus and method for adjusting a curie effect temperature sensing system
An apparatus and method for controlling the operating temperatures and differential temperature of a curie effect temperature sensing switch is disclosed. The temperature switch is adapted to provide temperature control of a cold plate in a reagent refrig...
09/09/1986
4581522Electrical heating system including a mesh heating element
An electrical heating system for use in heating surfaces. A heating element is constructed of mesh screen comprised of small gauge wires which are spaced in a close mesh arrangement such that the total surface area of the wires is substantially equal to o...
04/08/1986
4467180Electric cooking system
A two-circuit automatic hotplate has a switch, which can be controlled both by a bimetallic strip of a power control device and by an expansion member of a hydraulic temperature sensor. The control heating system of the bimetallic strip is in series with ...
08/21/1984
4439666Electrical heating system
An electrical heating system for use in heating surfaces. A heating element is constructed of mesh screen comprised of nonferrous, small gauge metal wires which are spaced in a cloth mesh arrangement such that the total surface area of the wires is substa...
03/27/1984
4407448Temperature sensing valve
A temperature sensing valve includes a casing having an internal fluid passage member formed therein, a permanent magnet mounted in the casing, a valve body which includes a magnetically soft, amorphous metal member supported in a thermally sensitive regi...
10/04/1983
4361275Solenoid valve with temperature safety unit
A solenoid valve with a temperature safety unit includes a body having a fluid passage formed therein, a solenoid mounted in the body, a valve member operatively associated with the body for displacement to open or close the fluid passage in response to a...
11/30/1982
4256945Alternating current electrically resistive heating element having intrinsic temperature control
The heating element consists of a substrate or core of a non-magnetic material having high thermal and electrical conductivity, clad with a surface layer of a ferromagnetic material of relatively low electrical conductivity. When the heating element is en...
03/17/1981
 
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