793results about How to "Avoid arcing" patented technology

Electrosurgical jaw structures are disclosed that include pressure sensitive variable resistive materials in electrosurgical energy delivery surfaces for welding tissue. The pressure sensitive materials are configured to have megaohm impedance when not engaging tissue and can transform into highly conductive electrodes when compressed under a selected pressure. In a method of the invention, the pressure sensitive variable resistive materials prevent arcing and tissue desiccation when applying bi-polar Rf current to tissue engaged under high compression in an electrosurgical jaw structure.

An electrosurgical working end and method for sealing and transecting tissue. An exemplary working end provides curved jaw members that are positioned on opposing sides of the targeted anatomic structure. The working end carries a slidable extension member having flange portions with inner surfaces that slide over the jaw members to clamp tissue therebetween. The working end carries an independent slidable cutting member that is flexible to follow the curved axis of the jaws. The electrosurgical surfaces of the jaws include partially-resistive bodies for carrying a current or load which modulates ohmic heating in the engaged tissue to prevent charring and desiccation of tissue to create a high strength thermal seal.

A high energy density, high power density capacitor having an energy density of at least about 0.5 J/cm3 is provided. The capacitor comprises a plurality of interleaved metal electrode layers separated by a polymer layer. The interleaved metal electrode layers terminate at opposite ends in a solder termination strip. The high energy density aspect of the capacitors of the invention is achieved by at least one of the following features: (a) the dielectric thickness between the interleaved metal electrode layers is a maximum of about 5 mu m; (b) the polymer is designed with a high dielectric constant kappa of at least about 3.5; (c) the metal electrode layers within the polymer layer are recessed along edges orthogonal to the solder termination strips to prevent arcing between the metal electrode layers at the edges; and (d) the resistivity of the metal electrode layers is within the range of about 10 to 500 ohms per square, or a corresponding thickness of about 200 to 30 ANGSTROM .

An electrode structure and a mechanism for automated or user-selected operation or compensation of the electrodes, for example to determine tissue coverage and/or prevent arcing between bottom electrodes during electrocautery is disclosed.

In the electromagnetic switching device, it is possible to miniaturize and have low costs, have quiet operation noise, and also quickly extinguish the arc. The electromagnetic switching device has an electromagnetic actuator with a movable iron core, a pair of fixed terminals that respectively have a fixed contact point, a movable contact that has movable contact points on the right and left ends, a shaft, and an enclosing component that holds the movable contact points and the fixed contact points. The pair of movable contact points respectively contact with and detach from the pair of fixed contact points, and the pair of fixed contact points respectively conduct each other and are insulated again through the shaft by moving the movable iron core along the axis using the electric magnetic actuator. A quasi-hermetically sealed space, which is the extinguishing space, is formed by the enclosing component and a first yoke. A potting compound is charged, into the space between a body and the quasi hermitically sealed space.

In a wind turbine (104, 500, 704) having a plurality of blades (132, 404, 516, 744) and a blade rotor hub (120, 712), a lightning protection system (100, 504, 700) for conducting lightning strikes to any one of the blades and the region surrounding the blade hub along a path around the blade hub and critical components of the wind turbine, such as the generator (112, 716), gearbox (708) and main turbine bearings (176, 724).

The embodiment of the invention discloses a method of a protection circuit and an electric pressure cooker and a protection pressure switch; wherein the protection circuit comprises a pressure switchconnected with a power supply, an electric hot tray connected with the pressure switch and a heating module connected with the electric hot tray and used for heating the electric hot tray; the protection circuit further comprises a switch protection module, the switch protection module is connected in parallel with the pressure switch, and used for absorbing the energy flowing through the pressureswitch when the connected state of the pressure switch is changed to the off-state. According to the method, the arcing phenomenon generated by the oversize pressure between the two contactors of thepressure switch can be avoided, and the service life of the pressure switch is prolonged.

An electronic thermostat (20) has a mechanical switch (22) and a solid-state switch (24). The electronic thermostat (20) is suitable for use in a liquid heating apparatus, such as a coffee maker or any other apparatus that dispenses heated beverages. In an illustrative embodiment, the electronic thermostat (20) has a controller (36) and a temperature sensor (34).

A lighting system and components are described for a lighting assembly, including a socket having a socket body and an electrical connector with a seat in the socket to seal around a light source. The socket is preferably configured to be independent of the mounting arrangement for the lighting assembly. An insulator is also disclosed for a lamp such as a fluorescent lamp having a body which protects the contact on the lamp so as to form a recessed lamp conductor. The combination of a socket and lamp insulator is also disclosed for providing a socket and insulator assembly for reducing the possibility of injury or damage due to high open circuit voltage, environmental effects and the like. Additionally, a lighting assembly is disclosed incorporating the insulator, socket and mounting arrangements.

A power transmission safety system is disclosed having a pair of power transmission members, each of the power transmission members having a switch arm. Each of a pair of switch arm engaging members reversibly engage a switch arm of its respective power transmission member. Each of a pair of pivoting shaft members are coupled to a respective one of the pair of switch arm engaging members on one end, and a rotatable handle on an opposing end. An interlocking power activation bar has a pair of openings located thereon, whereby rotation of one of the pivoting shaft members engages a switch arm of a respective circuit breaker into an “on” position and displaces the interlocking power activation bar to lock the other of the shafts from rotating, thereby preventing both of said power transmission members from being “on” concurrently.

The invention discloses a bottom power taking self-locking electric bus battery box system capable of quickly changing a battery. The system comprises a battery box (1), a tray (2) used for bearing the battery box and arranged on an electric bus, mobile equipment (4) for conveying the battery box, and a grabbing device (5) arranged on the mobile equipment; and a battery box locking and unlocking device (3) is arranged on the tray. Through the system, automatic assembly of the battery box in the electric bus battery box system is realized, and the problems of over positioning, deformation of power wire connection pegs, breakage, arc discharge, welding, difficulty in automatically realizing unlocking due to impact of the battery box to a bolt of a locking mechanism in jolt and deformation of the battery box due to impact in jolt. The system is reasonable, reliable, simple and compact in structure, and can full-automatically, quickly and conveniently realize quick change of the power battery.

A wire connector has an enclosure including a housing and a cap and one or more contacts supported in the enclosure. The contacts each have outer ends opposite wire ports in the cap to receive a stripped end of a wire in a push-in engagement. One set of contacts has a male blade and the other set of contacts has a female socket at the inner or forward ends thereof. The housings are arranged so that two housings are releasably engagable with one another. When two housings are engaged the male contacts electrically engages the female contacts of the other housing. The female contacts include a sacrificial tine that is always first to make and last to break engagement with the male contact so that any degradation due to arcing always occurs at the sacrificial tine.

A method is disclosed for delivering energy to a region of tissue within a patient's body using a medical treatment system. The medical treatment system comprises an energy delivery device coupled to an energy source. Energy is delivered through the energy delivery device positioned within the patient's body. An energy delivery parameter associated with the delivery of energy by the medical treatment system is monitored and if one or more values of the energy delivery parameter exceed a predetermined magnitude threshold, one or more errors are detected. The extent of the detected errors is determined or assessed and the delivery of energy is controlled if the extent of the errors detected exceeds a sensitivity threshold before the expiry of a predetermined time period.

The invention provides a sliding bottom electricity-taking and self-locking electric bus battery quick-change pellet device. The electric bus battery quick-change tray device comprises a pellet and a locking and unlocking mechanism (3) mounted on the pellet. According to the invention, the battery box can be correctly positioned and reliably locked reasonably; the force is reasonably applied to the battery box; simple structure and simple and reasonable power wire splicing mode are obtained; and the arc discharge phenomenon can be effectively prevented.