33results about "Contact cables" patented technology

The present invention relates generally to binary switches for use in the medical monitoring field and to methods for manufacturing same. More particularly, the instant invention involves the construction, manufacture, and operation of pressure sensitive patient monitors of the sort commonly used in medical settings to detect when a patient has, for example, exited a chair or a bed. In accordance with a preferred embodiment of the instant invention, an apparatus for patient monitoring is disclosed herein that contains one or more therein which resiliently collapse in response to weight, thereby completing an electrical circuit and indicating a presence or absence of a patient on the mat. Other preferred embodiments include hermetically sealed mats and methods of manufacturing same.

The invention provides copper alloy contact lines and a preparation method thereof, wherein, the method includes the following steps: (1) preparing master alloy powders of Cu-AI, in which 0.21-0.53wt% is the content of AI, and the rest is copper; (2) using the master alloy powders of Cu-AI obtained from step (1) to prepare an oxygen source of Al2O3-Cu2O, in which the weight ratio of Cu and AI keeps unchanged; (3) mixing the master alloy powders of Cu-AI obtained from step (1) and the oxygen source of Al2O3-Cu2O obtained in step (2), wherein, the weight ratio of the oxygen source of Al2O3-Cu2O in the mixture is 10-25wt%; (4) carrying out internal oxidation and reduction treatment for the mixture obtained in step (3), so as to obtain alloy powders of Cu-Al2O3, in which the content of Al2 O3 is 0.4-1.0wt%; (5) suppressing the alloy powders of Cu-Al2O3 obtained in step (4) into billets and then carrying out sintering treatment; (6) molding the suppressed and sintered billets obtained in step (5) into bars; (7) making the bars obtained in step (6) into contact lines with required section size by drawing. The copper alloy contact lines prepared by the method present good conductivity, high mechanical strength and softening temperature, good performance of friction and abrasion resistance.

An electrical wire includes at least one electrifiable conductor, and first and second return conductors which are respectively formed on opposing sides of the at least one electrifiable conductor, such that the at least one electrifiable conductor is at least substantially entrapped by said first and second return conductors.

A safety contact mat has an upper mat half and a lower mat half with respective mutually facing spaced apart conductive layers, which are to be brought into contact in order to close an electrical contact. At least one of the mat halves is formed by a flat coextrudate of a non-conductive elastomer, a conductive elastomer as the conductive layer, and of a conductive woven material enclosed between the elastomers.

Disclosed is a method for manufacturing a continuous-length switch that comprises first and second electrodes. The method comprises covering at least a first surface of a first electrode with an insulating material. Then, a portion of the insulating material from the first surface of the first electrode is removed so as to provide an exposed portion of the first electrode. And then, a second electrode is placed on the insulating material and over the exposed portion of the first electrode.

Cable comprising at least one conductor and at least a fire resistant coating layer including a composition comprising: (a) at least an organic polymer having a combustion temperature range comprised between a minimum value T1 and a maximum value T2; (b) at least a glass frit; (c) at least an inert compound; wherein:—said inert compound (c) has a softening point or a melting temperature of not less than 1000° C.;—said glass frit (b) reaches a viscosity of between 10⁷ poise and 10⁸ poise in a selected temperature range including the combustion temperature range of said organic polymer (a), said selected temperature range being such that said glass frit (b) flows over said inert compound (c) and the burned organic polymer (a) so as to form a solid char fire resistant coating layer.

The invention provides a copper coated steel contact wire with high strength, low relaxation and high electric conductivity for electric traction. A copper or a copper-silver alloy layer is coated on a high-strength and low-relaxation steel core, and the obtained product is subjected to cold rolling to obtain the copper coated steel contact wire; and the tensile strength of the copper coated steel contact wire reaches more than or equal to 600/mm<2>, and simultaneously, the electric conductivity of the contact wire reaches more than or equal to 80 percent IACS. The contact wire has the following advantages and technical effects: 1, the tensile strength reaches more than or equal to 600/mm<2>, simultaneously, the electric conductivity of the contact wire reaches more than or equal to 80 percent IACS, the contact wire also has the high electric conductivity of the copper and high strength, low relaxation and high yield ratio of steel, and the contact wire is suitable to apply to a high speed train with the speed of more than 300 km per hour; 2, the contact wire saves a pre-tension working procedure and reduces the construction difficult in the electric grid construction; and because of low degree of relaxation, the tension of a contact wire is more stable; 3, because of good straightening property, the straightening difficult of the contact wire is reduced in the electric grid construction; 4, the service life is long; 5, the contact wire can normally work at a higher temperature (generated due to abrasion); and 6, the power receiving capability of a pantograph is enhanced.

Contact wire of bronze in use for electric railway in high speed is composed of copper base and additive components. The said components include stannum, zirconium, and mixed rare earths. Weight percentage of each component is as following stannum 0.15-0.35%, zirconium 0.005-0.01%, mixed rare earths 0.005-0.02%. Additive components can also include magnesium and silver. Weight percentage of magnesium is 0.005-0.01%, and weight percentage of silver is 0.01- 0.03%. Advantages are: fine grain, high intensity, good plasticity, and abrasion resistance, tensile strength larger than or equal to 430Mpa, extensibility larger than or equal to 3.5%, grain size smaller than or equal to 0.01mm, resistivity smaller than or equal 0.02250 ohm .mm2/m, tensile strength larger than or equal to 390Mpa at softened 300 deg.C. The contact wire is applicable to electric railway in speed higher than 300 km per hour.

Disclosed is an elastic electric contact terminal including an elastic core provided with at least one or more channels which are recessed downwardly from the top surface thereof with a predetermined width and depth and extend in a lengthwise direction, a polymer film surrounding and adhering to the elastic core, and a solderable metal layer surrounding and adhering to the polymer film, wherein both side walls of the channels elastically support an object.

The present invention relates to a composite insulating member, a manufacturing method therefor, and an electrical device comprising the composite insulating member. The composite insulating member ofthe present invention comprises: a first insulating member formed from an electrical insulating member, and having a charging space; and a second insulating member formed from an electrical insulating member, having heat transfer performance higher than that of the first insulating member, and being charged in the charging space. Therefore, conductor insulation and conductor radiation can be promoted.

A cord switch is composed of a hollow tubular member having elasticity and insulating properties, and a plurality of electrode wires disposed opposite an inner side of the tubular member and spaced apart by elastic force of the tubular member. The plurality of electrode wires each include a conductor formed by stranding a plurality of metal wires together. All of the metal wires constituting the conductors are helically stranded together.

In a switch mat for an electrical switch with a back-lit actuation element, which is stored in a housing, for action on switch contacts, at least one of the switch contacts is correlated with the switch mat. The switch mat is colored dark in such a way that, on the one hand, scatter light is absorbed by the switch mat and, on the other hand, light for the back-lighting of the actuation element is allowed through by the switch mat.