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5725 results about "Electric contact" patented technology

Device, system and methods of conducting paperless transactions

InactiveUS20050247777A1Eliminate pointEliminate all paper transactions and billsCash registersPatient personal data managementCredit cardDisplay device
A universal electronic transaction card (“UET card”) is capable of serving as a number of different credit cards, bank cards, identification cards, employee cards, medical cards and the like. The UET card includes storage elements, an input interface, a processor, a display, and a communications interface. In a preferred embodiment, the UET card stores transactional information to eliminate paper receipts and includes security features to prevent unauthorized use. The UET card may also be used to replace conventional currency and traveler's checks, and may be configured to store and display promotional information, such as advertising and incentives. A communications interface unit (“CIU”) may be provided to interface between the UET card and a personal computer, automatic banking terminal (commonly referred to as ATM machines) and/or an institutional mainframe computer. CIU devices may include electrical contact for recharging a UET card. A system of utilizing the UET card is also provided which includes UET cards and CIU devices which enable the transmission of information between point of sales (or point of transactions) computers and the UET cards. The system further includes point of sales computers configured to communicate with the UET card and with service institution computers. The invention also includes a health care management system utilizing UET cards. In the health care management system, all medical information for a patient may be stored in the UET card so that when a patient receives services from a health care provider, that health care provider connects the patient's UET card to the health care provider's computer system and can then obtain all pertinent medical information concerning the patient, including the patient's medical history, insurance information and the like. In addition, the treatment or services provided by the health care provider are stored in the patient's UET card. The invention also includes methods of issuing an account authorization to a UET card, a method of transferring transactional and account information between a UET card and a personal computer or a mainframe computer, a method of using the UET card as a remote terminal for a mainframe computer, and a method of conducting an electronic transaction.
Owner:C SAM INC

Piezoelectric resonator, process for the fabrication thereof including its use as a sensor element for the determination of the concentration of a substance contained in a liquid and/or for the determination of the physical properties of the liquid

Disclosed is a piezoelectric resonator, a process for the fabrication thereof and its use as a sensor element, which implemented in a through-flow cell, is integratable in a measurement system for the determination of the concentration of a substance contained in a liquid and/or for the determination of the physical properties of the liquid. The piezoelectric resonator is designed plane and is provided on its surface with electric contact areas for an electrode and a counter electrode, which is connectable to a signal source as well as to a measurement device. For measuring, the piezoelectric resonator is brought into contact with the to-be-examined liquid on one side, with the resonator responding to the accumulation of the mass of the to-be-detected substance or to a change in the physical properties of the liquid by changing its resonance frequency and/or oscillation amplitude.The present invention is distinguished by the fact that the piezoelectric resonator is provided with contact electrode areas which is contactable from one single side of the resonator. The resonator is the heart piece of a sensor element, which is integrated in a through-flow cell. The through-flow cell us insertable module-like in a measurement arrangement for determining the concentration of a substance contained in a liquid and/or determining the physical properties of the liquid.
Owner:FRAUNHOFER GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG EV

Method for repairing defect in tungsten copper-copper integral electric contact material

The invention provides a method for repairing a defect in a tungsten copper-copper integral electric contact material. The method comprises the following steps: firstly, eliminating impurities in the part of the defect; secondly, weighting metal powders containing the materials identical to that of the electric contact in the part of the defect, wherein the mass of the metal powders is 1.2 times the product of the volume of part of the defect and the density of the electric contact material in the part of the defect; thirdly, uniformly mixing the weighed metal powders with a glycerin solution to produce a filling material, and then coating the filling material in the part of the defect in the electric contact part; after the part of the defect is filled up with the filling material, in the circumstance of taking nitrogen as a protective atmosphere, scanning and remelting the filling material in the part of the defect with a high-energy laser beam; in the remelting process, complementing the filling material in the part of the defect blown away due to spraying nitrogen is replaced at the same time, and melting the refilled filling material with a parent material until the part of the defect is full and slightly convex; and finally, grinding and polishing the repaired electric contact part. The method is easy to operate, the product rate is high and the repaired product has stable performance and high quality.
Owner:NANTONG YONGDA PIPE IND

Critical water-controlled type semiautomatic electric heating cooking pot

A critical water-controlled type semiautomatic electric heating cooking pot consists of a wireless coupling electric heating cooking pot body and a power coupling seat, wherein an electric heating plate and a heat-conduction connecting plate are arranged on a semi-spherical surface of a non-stick pot bottom; the heat-conduction connecting plate penetrates in a strip-shaped channel in the middle of the electric heating plate and is provided with a temperature sensor; a circular base is arranged on the heat-conduction connecting plate; a rectangular coupling socket is formed in the middle of the circular base; the left end and the right end of the coupling socket are provided with a connecting plate groove and a front and back blade groove; the heat-conduction connecting plate in the connecting plate groove and a front and back electric contact blade in the front and back blade groove are respectively in contact with an earthing spring plate and a front and back power spring plate on a coupling plug of the power coupling seat, so that power wires of the heat-conduction connecting plate and the front and back electric contact blade are in coupling connection with the coupling plug of the power coupling seat; a triangular machine box is arranged on the left side of a control handle; and an operating panel is arranged at the left upper end of the triangular machine box and is respectively provided with a high-temperature button, a high-temperature indicator lamp, a low-temperature button and a low-temperature indicator lamp. The temperatures of different regions of the surface in the pot are correspondingly changed along with change of the quantity of water in the electric heating cooking pot, and are measured and controlled according to change of a critical temperature, the electric heating cooking pot can be switched off automatically during cooking, the circumstance that a user forgets to switch off the cooking pot and food in the cooking pot is burned are avoided, the time is saved, the user does not need to worry about the food in the cooking pot, and troublesome problems are avoided.
Owner:广东万迪电器有限公司

Flexible pressure sensor and preparation method thereof

The invention discloses a flexible pressure sensor which comprises an induction layer, a substrate layer, an isolation layer and electrodes. The isolation layer is positioned between the induction layer and the substrate layer and bonded to the induction layer and the substrate layer, and enables electric contact between the induction layer and the substrate layer to be isolated discontinuously; the surface of the induction layer is provided with a first conductive layer, the surface of the substrate layer is provided with a second conductive layer, and the first and second conductive layers are bonded to the isolation layer in opposite directions; and the electrodes are led out of the first or second conductive layer and connected with an external circuit. The flexible pressure sensor is used to detect the size and fluctuation of pressure, a flexible conductive material on the specific substrate is bonded to other conductive substrate, the electrodes are led out, change of resistance between the electrodes is measured, and the size and fluctuation of the pressure is detected in directly. The pressure sensor of high flexibility and high reliability can be applied to a flexible bearing body, technology is simple, and the sensor can be compatible with a present processing technology of a resistant screen to realize scaled production and application.
Owner:常州第六元素半导体有限公司
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