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Pizza Pie With Concentric Rings of Crust

A pizza mold for forming a plurality of concentric raised ridges of dough (i.e., crust) on the surface of a pizza pie.

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Class 361/6 - With voltage sensitive control circuit


Subclass of Class 361 - Electricity: electrical systems and devices
Definition: Subject matter wherein the opening or closing control circuit
No. of patents: 78
Last issue date: 10/28/2008


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NumberTitleIssue Date
7443640Apparatus for detecting arc fault
Disclosed herein is an apparatus for detecting an arc fault, which prevents a malfunction caused by a conventional current detecting method by detecting a source voltage applied onto a conductive wire to determine whether there is an arc fault, prevents a malfunctio...
10/28/2008
7440245Arc fault circuit interrupter and method of detecting an arc fault
An arc fault circuit interrupter includes separable contacts, an operating mechanism adapted to open and close the separable contacts, and a trip mechanism cooperating with the operating mechanism to trip open the separable contacts. The trip mechanism includes a pe...
10/21/2008
7433170Apparatus and method of controlling the closing action of a contactor
A contactor having a separable conduction path, an actuator, a magnetic stator and armature, and a controller, is disclosed. The actuator is in mechanical communication with the separable conduction path, and the magnetic stator and magnetic armature are arranged in...
10/07/2008
7405910Multifunction hybrid solid-state switchgear
A universal hybrid solid-state switchgear for power transmission or distribution systems incorporates a fast mechanical switch and solid-state power electronics switching circuits to provide circuit breaker and fault current limiting applications. ...
07/29/2008
7368829Method and apparatus for detecting welding of a relay contact
A method for detecting a welding of a relay contact in a circuit having a DC power supply; a load circuit; a first main relay and a second main relay respectively inserted in a pair of power supply lines disposed between the DC power supply and the load circuit; and...
05/06/2008
7363518Information handling system with power fault protection circuit
An information handling system (IHS) employs a power fault protection circuit to protect the IHS from overvoltages which may occur on an information line from a power adapter to the IHS. The system includes a processor coupled to the protection circuit. The circuit ...
04/22/2008
7319574Arc fault detection apparatus, method and system for an underground electrical conductor
A non-invasive underground arc fault detection apparatus is for an underground electrical conductor. The apparatus includes an electric circuit having an opening for admitting the electrical conductor therethrough. The electric circuit includes one or two transducer...
01/15/2008
7301742Method and apparatus for accessing and activating accessory functions of electronic circuit breakers
An electronic trip unit for a circuit breaker includes a programmed microprocessor and a module plug in removable signal communication with the microprocessor. The module plug includes a program identifier. The microprocessor recognizes the program identifier and ac...
11/27/2007
7291984Method of reducing RMS load voltage in a lamp using pulse width modulation
A method of converting a line voltage to an RMS load voltage in a lamp includes modulating a load voltage with a pulse width modulation circuit that is entirely within the lamp and provides an RMS load voltage to a light emitting element of the lamp. Conduction is t...
11/06/2007
7274148Lamp having fixed forward phase switching power supply with time-based triggering
A lamp contains a lamp voltage conversion circuit that is entirely within a base for converting a line voltage at a lamp terminal to an RMS load voltage at a light emitting element. The voltage conversion circuit includes a forward clipping circuit with a three-term...
09/25/2007
7274149Lamp with integral pulse width modulated voltage control circuit
A lamp has a voltage controller that converts a line voltage to an RMS load voltage suitable for operation of the lamp's light emitting element, where the voltage controller is entirely within a lamp base and uses pulse width modulation to define the RMS load voltag...
09/25/2007
7268992Power supply with disconnect fuse
A power supply in which a feed voltage (Us) is guided through at least one longitudinal branch to at least one output, the at least one branch having a disconnect fuse formed as a controlled semiconductor switch (SW1) and a monitoring unit (UWE) be...
09/11/2007
7224557Method and system of controlling asynchronous contactors for a multi-phase electric load
Control of an induction motor is carried out to limit damaging arcing stress and mechanical stresses placed on the control contactor assembly and the induction motor resulting from the simultaneous or synchronous breaking and making of contactors employed to connect...
05/29/2007
7218054Lamp having fixed phase power controller with analog trigger
A lamp which includes a fixed phase power controller connected between a terminal and a light emitting element converts line voltage to an RMS load voltage. The controller has an analog control block that receives an input that is independent of a change in magnitud...
05/15/2007
7199532Lamp containing phase-control power controller with analog RMS load voltage regulation
A lamp includes a phase-control power controller within the lamp. The phase-control power controller includes an analog load voltage sensor that provides an optical output related to an RMS load voltage and a phase-controlled dimming circuit that has a comparison ci...
04/03/2007
7184900Method of measuring a monophase voltage
The present invention is related to a method for measuring the instantaneous value of a monophase AC voltage signal Ve, comprising the steps of: applying said voltage signal Ve to a first input of a phase comp...
02/27/2007
7164977A/C bus assembly for electronic traction vehicle
An electronic traction vehicle comprising a principal power unit, a power storage unit mounted on a vehicle platform. A plurality of wheels are rotably mounted on the vehicle platform with an electric motor coupled to at least one wheel. A drive controller is couple...
01/16/2007
7161775Arc fault circuit breaker and apparatus for detecting wet track arc fault
An apparatus includes a first circuit detecting when an absolute value of a current signal is less than a first predetermined value and outputting a signal after a first time period. A comparator compares that signal to an envelope of a rectified current signal, in ...
01/09/2007
7145758Arc suppression circuit for electrical contacts
A circuit to suppress arc across contacts of a relay is provided, in which the relay is electrically coupled to a power supply and a load. The circuit includes an arc suppression circuit electrically coupled between the first and second contacts of the relay, and th...
12/05/2006
7126307Interface circuit for actuating an electrical device and circuit arrangement for actuating an electric motor therewith
An interface circuit for actuating an electrical consumer, especially a pole-changing rotary-current induction motor, with a first contact element assigned to a signal line carrying an alternating voltage signal to generate at least two different control signals. A ...
10/24/2006
7109720Method for determining wear of a switchgear contacts
In a switching device, a method and device for determining the wear of the pole contacts (C1, C2, C3) actuated by an electromagnet (20) whose movement is controlled by an excitation coil (21) by the variation of a contact wear dist...
09/19/2006
7079363Hybrid DC electromagnetic contactor
In a hybrid DC electromagnetic contactor, by including a power unit for supplying a certain power voltage; a main contact point of a breaking switch for providing a supply path of the power voltage by being switched in accordance with a voltage apply to an operation...
07/18/2006
7066749Method and system for preventing the formation of an electric arc in a connector which is inserted in a power load supply line
The connector (11) is made up of electroinsulator supports (1, 2) carriers of at least one pair of terminals (3, 4) capable of coupling to a plug said terminals (3, 4), being in a coupling position for said electroinsulator supports (1...
06/27/2006
7061739Overcurrent protection circuit
Disclosed is an overcurrent protection circuit including an overcurrent trip and a switching element. A switched current passing through the switching element can be detected by the overcurrent trip and the switching element can be tripped to open if the switched cu...
06/13/2006
7057361Inverter control device and electric vehicle thereof
In a discharge control section of an inverter control device, when the connection of the battery and the smoothing capacitor is disconnected by means of a contactor, the charge accumulated on the smoothing capacitor is discharged by applying high-frequency voltage t...
06/06/2006
7057306Fuel cell and control unit in a detachable housing
The invention relates to a vehicle with a fuel cell for producing power. The vehicle has a monitoring and switching unit which is enclosed in a housing that is detachably connected to the fuel cell housing. ...
06/06/2006
7034473Phase-control power controller for converting a line voltage to an RMS load voltage
A phase-control power controller that converts a line voltage to an RMS load voltage includes a phase-control circuit connected to the line and load terminals and having an RC network that clips the load voltage. A load sensing circuit is connected across the load t...
04/25/2006
6958671Electrical contactor with positive temperature coefficient resistivity element
The present invention provides an electrical contactor for connecting and disconnecting an electrical power source to an electrical device wherein the electrical power source is electrically connected to a line terminal having a line terminal electrical contact and ...
10/25/2005
6693777Method for controlling the operation of a switching device
A method for controlling the closing operation of a switching device, which is disposed on an electrical network connected to an inductive component. The method requires first data related to the electrical characteristics of the inductive component and t...
02/17/2004
6624989Arc suppressing circuit employing a triggerable electronic switch to protect switch contacts
Circuits and methods are disclosed for suppressing arcing occurring in switch contacts that includes a triggerable electronic switch in parallel with a series connection of relay switches. The trigger electrode of the triggerable electronic switch is conn...
09/23/2003
6548769Circuit breaker
A circuit breaker includes an opening and closing mechanism section with an opening and closing lever, and an alarm-outputting plate operating in response to a tripping operation. A case for the circuit breaker has a plurality of switch housing sections f...
04/15/2003
6534991Connection tester for an electronic trip unit
A trip unit connection tester (10) is arranged to test the electrical connections (12) and (14) between a trip unit (16) and actuator (18) mounted within a circuit breaker (20). Tester (10) includes a power source (64) including a positive lead (68), and ...
03/18/2003
6429659Connection tester for an electronic trip unit
A trip unit connection tester (10) is arranged to test the electrical connections (12) and (14) between a trip unit (16) and actuator (18) mounted within a circuit breaker (20). Tester (10) includes a power source (64) including a positive lead (68), and ...
08/06/2002
6295188Method of closing a circuit breaker synchronously
A method of synchronously closing a hydraulically-controlled circuit breaker connected in an AC network, the method including, for each pole of the circuit breaker, using a microcontroller connected to the hydraulic control system via static switches to p...
09/25/2001
6258592Electroporation cell with arc prevention/reduction
An electroporation system and method for directing high-voltage currents to a suspension of cells contained in a cuvette. A high-voltage switch controls the coupling of a charge control to a high-voltage capacitor and, additionally, controls the coupling ...
07/10/2001
6084756Apparatus for testing protection of an electric power distribution circuit by an arc fault circuit breaker
A tester for an arc fault circuit breaker plugs into a socket in the protected branch circuit. An actuator includes a first spring biasing a moveable contact carried by a pivoted contact arm away from a fixed contact and a momentary closer for momentarily...
07/04/2000
6002559Contractor tip cleaning circuit
A circuit for a direct current electric motor system for reducing contamination in contactor tips includes a semiconductor element in a parallel circuit arrangement with the contactor. The motor system includes a direct current power source coupled to an ...
12/14/1999
5844331Process for monitoring the wear of at least one contact in a switching device and switching device designed thereof
A switching device including a measuring means for monitoring contact erosion, which is provided between a contact element and an associated contact support. The switching device includes an electrically insulated signal line, which is usable in individua...
12/01/1998
5805393Overcurrent protection circuit with improved PTC trip endurance
An overcurrent protection system which will give a rapid response to overcurrents which cause a reduction in the voltage across the load, e.g. a partial or complete short across the load, and which will preserve the trip endurance of a PTC device used in ...
09/08/1998
5790430Variable speed fan failure detector
The failure of a motor to maintain a commanded speed is detected by the disclosed variable speed fan failure detector. The commanded speed varies as a function of temperature, such that at temperatures below a first predetermined temperature the motor run...
08/04/1998
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