Other

Mastrad, S.a.

Mastrad

Chargueraud, Thierry

Simeray, Janick

Janick Simeray

Mathieu Lion

Marc Simeray

Thierry Chargueraud

Pascal Laligant

Yves May

Mathieu c/o Mastrad Lion

Autonomous and lightweight vehicle intended to transport a city dweller combined with the use of public transportation. Formed by one motorized wheel on which the user maintains, through speed, his or her lateral balance, and longitudinal balance is ensured by automatic functioning driven by an accelerometer. The footrests and the guide supports that tightly hold the leg are retractable. Driving does not require the use of the hands. The entire device goes into a bag, e.g. a backpack, and weighs less than 4 kg.

Motorized transport vehicle for a pedestrian

A motorized mobile toy remote controlled by light beams. The remote control projects a spot on the ground, the toy, equipped with optical sensors, follows the spot. The optical sensor delivers instructions on the variation of the position of the spot compared to the center of the image, the processing of an electronic circuit then controls the motors to compensate the variation.

Optical remote controller pointing the place to reach

Temperature monitoring device of a matter that is at least partly made of water, such as food, comprising a wireless temperature sensor comprising: wherein the sensor is laid out so that the temperature transducer is located near to the transmitter circuit, thereby forming a compact unit. The invention further relates to a temperature monitoring process using the said temperature monitoring device.

Food temperature monitoring device

An energy converting circuit, boosting the voltage supplied by a low direct voltage source, comprising a self-oscillating circuit, operating at very low voltage, using a voltage boosting transformer generating control signals of two chopper-boosters operating alternately. The circuit including an enhancement-type field effect translator used in synchronous switching with the self-oscillating circuit, which is in serial connection with an inductive resistor to the terminals of the source ( ). The transistor being connected to a user circuit via a diode ( ). The circuit is used in a device for supplying electricity to appliances and by the production of thermal converters for the utilization of low-voltage thermoelectricity, as well as in a method for the manufacture of thermal converters on an industrial scale.

Power converter for supplying electricity from a difference in temperature

A device for heating a cooling vessel for keeping warm the food contained in the vessel. A mobile support is provided for the vessel in which are arranged a supply module comprising a source of live electric energy including a high frequency voltage selector supplied by the source and at least a flat inductor of fine thickness supplied by the voltage selector. The source of electric energy generating an electromagnetic field perpendicular to the support plane and a flat armature of fine thickness made up of completely closed spires and placed under the vessel parallel to the supporting table.

Growing community of inventors

Argenteuil, France

Janick Simeray