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Patent No. 5421089

Fork With Timer

A fork with timer for providing a cue to a user after an elapsed period of time for indicating that another bite of food using the fork may be taken.

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Assignee: Electricite de France Service National


Location: Paris, FR
No. of patents: 48

1    
NumberTitleIssue Date
7235328Electrochemical generator element and corresponding battery
The invention concerns an electrochemical generator element (102) comprising successively a first electrode layer having a polarity (114), a first electrolyte layer (110), a second electrode layer with reverse polarity (108), a second ele...
06/26/2007
7026258Method for making thin-film semiconductors based on I-III-VIcompounds, for photovoltaic applications
The invention concerns a method for making thin-film CIGS which consists in: electrochemically depositing on a substrate a layer of stoichiometry close to CuInSe2; then rapidly annealing said layer from a light source with pulses of sufficient power to re...
04/11/2006
6975094Method and device for charging several electrochemical cells
In a method of charging several electrochemical cells 5, 6, 7 connected in series, by a charger 1 which allows adjusting the voltage and the charging current, the voltage of each cell is detected permanently, and when a first cell reaches a predetermin...
12/13/2005
6950007Method and device for monitoring enablement of an electrical apparatus connected to a power grid
The invention concerns a method and a device for monitoring enablement of an electrical apparatus connected to a power grid. The method consists in: transmitting (A) from a specialised transmitter (ES) to the electrical apparatus (EA) a coded information message com...
09/27/2005
6909322Stage of a power generator of high frequency current
Output amplifier stage (1) of a high frequency generator (1) with tube (2) operating in class B or C has its output (5) looped back on the input (4) by means of a coaxial line (31) with a length equal to approximately the wa...
06/21/2005
6568277Method and device for measuring pressure inside a steam generator
The method and device are able to overcome possible clogging of measuring devices comprising probes each surrounded by a tranquilliser. It chiefly comprises a tranquilliser (21), preferably spherical in shape, fitted with a separating partition (33) allowing m...
05/27/2003
6445269Dry-type high-voltage winding
The invention concerns an air-core primary voltage winding comprising a conductive wire coil coated with an insulating sheath, characterized in that said coil (1) is encapsulated in a high voltage insulating thermoplastic resin (2), and in that it further...
09/03/2002
6421501Heater for resistive heating of a fluid, fluid-treatment apparatus incorporating such a heater, and a method of treating a fluid by resistive heating
A resistive heater comprises at least one heater chamber defined by walls, two of which are constituted by parallel conductive plates spaced apart by a selected distance. The chamber also has an inlet for introducing a fluid close to a first end of the pl...
07/16/2002
6392857Device and process for protecting a line of a network of electricity supply lines
This device for protecting a line (10, 12) of a network of supply lines comprises two protective relays (18, 20; 22, 24) furnished with means for detecting faults and a circuit breaker adapted so as to disconnect the line from the network of lines in the ...
05/21/2002
6225915Device for transmitting commands to the equipment of an installation, especially of an electrical installation and installation controlled by such a device
A device for transmitting commands to a suite of equipment, such as for example, equipment found in an abode. The device is capable of sending and receiving control signals in the form of modulated infrared or radio waves. The device is also capable of tr...
05/01/2001
6146550Electrical resistance heating element for an electric furnace and process for manufacturing such a resistance element
This electrical resistance heating element (10) for an electric furnace comprises a resistive heating part (12) made of a ceramic. The ceramic comprises a sintered mixture of silicon carbide particles, of dopant particles, suitable for obtaining an electr...
11/14/2000
6111136Method for preparation of perfluoroalcanecarboxylic and perfluoroalkanesulfonic acids
The invention consists of a new method for preparing perfluoroalcanecarboxylic and perfluoroalcanesulfonic acids in which ozone is made to react, in a protic environment, upon a perfluoroalkyl chain comprising at least one oxydizable chemical group....
08/29/2000
5901435Device for installing aerial beacons on a cable
This invention pertains to a device for the automatic installation of aerial beacons on a cable. The device has magazines for the distribution of half-beacons (12a, 12b) and means (16) for putting into place and assembly on the cable of half-beacons (14) ...
05/11/1999
5884139Gas phase catalytic reactor
A gas phase catalytic reactor comprising a metal vessel defining a confinement volume in which electromagnetic waves are generated at a frequency greater than 10 MHz. The confinement volume contains a porous catalyst which is heated by the electromagnetic...
03/16/1999
5837400Ionically conductive materials including bis(phenylsulphonyl) imides
The invention relates to ionically conductive materials including at least one compound corresponding to the following formula (I): ##STR1## in which the groups X and X' are identical or different and denote at least one electrophilic group in an ort...
11/17/1998
5811731Fire barrier ventilation sealing assembly and ventilation device equipped with such a sealing assembly
This fire barrier ventilation device has a duct (15) surrounded by a sheath (28) made of fire barrier protective material. A fire barrier ventilation sealing assembly (22), formed by a frame having grilles (2, 3) fixed to refractory material plates (4, 5)...
09/22/1998
5737205Semiconductor static electric power converter optimized for operation in zero-voltage mode
The invention relates to static electric power conversion using semiconductors using soft switching in zero-voltage mode and controlled to perform pulse width modulation, having a first interface (L, C, Ta, Da) in series between a DC...
04/07/1998
5711664Rotary melting furnace
A rotary melting furnace having an enclosure supported for rotation. The enclosure includes a cylindrical shell, a pair of disc-shaped flanges connected to the shell at ends thereof, and a unitary liquid cooling circuit. The shell and the flanges each inc...
01/27/1998
5703483Pulse tachometer with sender connected to inductive proximity sensor
The pulse tachometer for measuring the rotation of a rotating element (A) is characterized in that it comprises an inductive proximity sensor (10) placed in the vicinity of this element (A) in order to generate an electric pulse (100) upon each revolution...
12/30/1997
5700442Insertion compounds based on manganese oxide usable as the positive electrode active material in a lithium battery
The invention relates to the preparation of insertion compounds based on manganese oxide, usable as the positive electrode active material in a lithium battery. These compounds in the hatched area of FIG. 1 can be prepared by reacting in the solid state a...
12/23/1997
5559439Method and device for measuring the compensation tuning and detuning of an electrical distribution network
A method and a device for measuring compensation balance and imbalance in an electrical supply network having a balancing coil. An auxiliary measurement signal is injected into the network's neutral circuit, changes in the homopolar voltage induced by the...
09/24/1996
5486994Device for control of the oscillating circuit of a voltage inverter operating under quasi-resonance with pulse modulation regulation
Pulse width modulation quasi-resonant voltage inverter including a bridge (2) and an oscillating circuit consisting of an inductance (5) in series with the voltage source (1) and of a capacitor (6) in parallel with the bridge (2), the sampling period was ...
01/23/1996
5474259Process for intervention on overhead cables by means of helicopter-carried fork and nacelle
The nacelle (2) and the fork (20) permit rapid interventions by helicopter on bundle-type overhead cables (1). The metal nacelle (2) carrying operators and equipment has on its sides (16) fixing hooks (14). The nacelle (2) can be fixed to overhead cables ...
12/12/1995
5432694Method of regulating a voltage inverter operating in quasi-resonance
Method of regulating a voltage inverter operating in quasi-resonance, including an inverter bridge with controlled components (transistors, GTO etc.) operating in turned off-saturated mode, and an oscillating circuit arranged on the DC voltage source side...
07/11/1995
5398467Fire barrier aeration device with static elements
A fire barrier aeration device intended to ensure free exchange of air between two spaces separated by a wall which is equipped therewith and to break the passage of gas through the wall, when fire breaks out in one of the spaces, comprises at least one b...
03/21/1995
5307868Device for preventing choking in plate heat exchangers
The present invention relates to a plate heat exchanger consisting of a stack of plates (21) clamped against each other in a sealed manner with a sealing joint being intercalated so as to create fluid flow channels between these plates, each plate compris...
05/03/1994
5075044Process for the radioactive decontamination of an oil
According to the invention, the oil is passed through a pulverulent material, such as an earth or clay, in the presence of an acid. The pulverulent material can be placed beforehand on a filter or can be mixed with the oil before filtration. If necessary,...
12/24/1991
4952225Method of making an internally-doped tube of transparent glass, in particular for manufacturing rare-earth-doped optical fibers
A mist is formed by an ultrasonic generator (5) from a liquid solution containing a dopant, and the mist is inserted into the tube blank to be doped (4) by means of a flexible pipe (2) in order to deposit microdrops on the inside surface of said tube blan...
08/28/1990
4951356Process and installation for opening shellfish
The invention comprises subjecting shellfish (2) to infrared radiation (4,6) for a time preferably between 30 seconds and 3 minutes and involves three phases during which the shellfish (2) are exposed to radiation firstly from above, then over the entire ...
08/28/1990
4897239Instrumentation column for the core of a pressurized water nuclear reactor
In a pressurized water nuclear reactor, the neutron flux is measured by introducing a probe into a glove finger tube, whose end is normally located in the reactor core. Each glove finger tube passes into a vertical instrumentation column, which is termina...
01/30/1990
4892507Single or double variable diameter pulley and speed variators including such a double pulley
Pulley usable in single or double form. It comprises a guidance structure (3) for segments (4) displaceable in accordance with the setting of the rods (7), which are advantageously symmetrically extended with respect to a pivot (9) and carrying an opposit...
01/09/1990
4830052Diaphragm safety device with upstream active bursting knife
A safety device for limiting the pressure of a fluid to a predetermined value comprises a preshaped diaphragm having a downstream convex face and an upstream convex face mounted as a closing or sealing device in a pipe. A first knife faces the convex face...
05/16/1989
4818474Process for the control of the core of a pressurized nuclear water reactor
The core of a pressurized water nuclear reactor is partly formed from dismantlable assemblies (10), whereof the rods contain mixed UO2 -PuO2 oxide pellets, said assemblies (10) being subdivided into concentric zones (12,14,16) with a...
04/04/1989
4799788Process for measuring the temperature of a body by optical detection and modulated heating
A process for measuring the temperature of a body by optical detection is disclosed wherein the body is heated by a modulated light beam and the radiation coming from the object is detected. The modulated component of the detected signal is measured and t...
01/24/1989
4792652Electric induction cooking appliance with reduced harmonic emission
Electric induction cooking appliance comprising a support for a vessel (C) to be heated and at least one flat inductor intended to be fed by a frequency convertor, characterized in that the inductor consists of a first coil (4) having a first sense and of...
12/20/1988
4785386Orientable lighting apparatus for a pond containing radioactive materials
The handling pond of a pressurized water nuclear reactor is equipped with orientable lighting apparatuses. Each apparatus comprises a floating lighting means mounted at the end of an also floating articulated arm. The opposite end of the arm is supported ...
11/15/1988
4764336Basin, in particular a de-activation pool of a nuclear station
This reservoir is provided with a fluidtight covering of metal sheets (6) welded together by their edges and supported by beams (2) each comprising two section elements (16, 17), and three longitudinal channels. In cross-section, the first and second sect...
08/16/1988
4705661Fast neutron nuclear reactor equipped with a central handling cell and a boxed slab
A fast neutron nuclear reactor having a vessel filled with liquid metal and sealed in its upper part by a box slab having a central opening in which is placed a plug-cover-core overhanging the core of the reactor. The central opening is surmounted by a ce...
11/10/1987
4686067Process for eliminating deposits formed in a steam generator of a pressurized water nuclear reactor
Process for the elimination of corrosion products formed on the tube plate and in the gaps between the tubes and the spacer plates of a steam generator of a pressurized water nuclear reactor, in order to prevent the appearance of a corrosion phenomena, wh...
08/11/1987
4679529Steam generator feed water heater
A steam generator feed water heater comprises a pressurized enclosure inside which is a heat exchanger through which the feed water is caused to flow. There is at least one horizontal condensate inlet tube, as well as at least one condensate outlet tube a...
07/14/1987
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