Electricity: magnetically operated switches, magnets, and electromagnets inventions 05/09

20090134961 - Apparatus for monitoring the state of a protective device of a machine: The invention relates to an apparatus (1) for monitoring the state of a protective device (2) of a machine (4), in particular a safety switch for monitoring the closed state of a protective door or the like, wherein the apparatus (1) has a switch housing (22) with a switch head... Agent: Roylance, Abrams, Berdo & Goodman, L.L.P.

20090134962 - Opening/closing device: A plurality of pairs of a movable contact point and a fixed contact point, which are opposite so that they can be contacted with and separated from each other, are provided in parallel and connected in series so that an electrical current flows in the same direction between the movable... Agent: Osha Liang L.L.P.

20090134963 - Flexible magnetic sheet systems: Flexible magnetic sheets made with high-energy strontium ferrite, such as to decrease thickness with maintaining a strong magnetic energy (over one Megagause-Oersted) as well as flexibility.... Agent: Stoneman Volk Patent Group

20090128264 - Fault circuit interrupting device with symmetrical inputs: There is disclosed a circuit interrupting device with symmetrical inputs comprising a first input configured for connection to a power source or a load circuit and a second input configured for connection to a power source. There are a plurality of electrical conductors extending from the first and second inputs... Agent: Collard & Roe, P.C./leviton

20090128265 - Secondary trip system for circuit breaker: A mechanism for a circuit breaker contact arm that allows current limiting by reducing the opening time is disclosed. A secondary trip assembly is arranged to actuate due to magnetic forces generated during an undesirable electrical condition such as a short circuit. The secondary trip system releases a contact arm... Agent: Cantor Colburn, LLP

20090128266 - Electromagnetic switch for an e-machine: An electromagnetic switch is described as including a starter relay, in particular, for an electrical starter motor for controlling a starter pinion when starting an internal combustion engine, having a housing, an armature electromagnetically controllable therein, for controlling a control lever, and having a flexible protective cap which seals a... Agent: Kenyon & Kenyon LLP

20090128267 - Switch, in particular vehicle switch, evaluation unit therefor and associated switch unit: The invention relates to a switch, in particular a vehicle switch, comprising a switching part which can be coupled to an actuation element, is rotationally mounted about a rotational axis and can adopt defined switch positions. The switching part comprises at least one permanent magnet comprising several south pole and/or... Agent: Dreiss, Fuhlendorf, Steimle & Becker

20090128268 - Electromagnetic reciprocating engine: An electromagnetic engine comprises an electromagnet having opposing magnetic poles at ends thereof. A non-magnetic rigid support is mounted for oscillatory stroke movement relative to the electromagnet. A crankshaft is coupled to the support; a sensor is coupled to the crankshaft and outputs a crankshaft position signal. First and second... Agent: Darby & Darby P.C.

20090128269 - Cooling system and apparatus for controlling drift of a main magnetic field in an mri system: An apparatus for controlling a temperature of a warm bore of a superconducting magnet in a magnetic resonance imaging (MRI) system includes a cooling tube that is mounted on a surface of the warm bore and is configured to transport a coolant. A chiller is coupled to the cooling tube... Agent: Peter Vogel Ge Healthcare

20090128270 - Method of manufacturing a solenoidal magnet: A method of manufacturing a solenoidal magnet structure, includes the step of providing a collapsible accurate mold in which to wind the coils winding wire into defined positions in the mold, placing a mechanical support structure over the coils so wound, impregnating the coils and the mechanical support structure with... Agent: Schiff Hardin, LLP Patent Department

20090128271 - Solenoid: A solenoid is provided with a reduced overall length, while providing the same force characteristics as the force characteristics of conventional solenoids or higher. The solenoid includes a fixed portion and a movable portion. Furthermore, the end of the movable portion includes a magnetic pole portion having at least two... Agent: Occhiuti Rohlicek & Tsao, LLP

20090128272 - Halbach magnet array for nmr investigations: A magnet array for use with NMR signal acquisition apparatus uses rod-shaped magnets located at the corners of a square. The square lies in the (x-y) plane of a three dimensional Cartesian coordinate system and the long axes of the magnets extend generally along the z-direction such that the polarisation... Agent: Fish & Richardson P.C.

20090121815 - Relay: A relay includes a movable iron piece, a plate spring fixed to the one surface of the movable iron piece, a shaft hole formed by the one surface of the movable iron piece and the plate spring, and a supporting shaft inserted through the shaft hole. The movable iron piece... Agent: Osha Liang L.L.P.

20090121816 - Switch and switch device using same: Regarding a switch used for various controls of a motor vehicle in particular and a switch device using the switch, it becomes possible to simplify the configuration and to perform reliable detection of trouble. A first detector is disposed on a surface opposing to a magnet fitted to an actuator,... Agent: Ratnerprestia

20090121817 - Linear solenoid: An assist spring is provided between a plunger and a bottom wall of a yoke in order to bias the plunger forward. The assist spring has nonlinear characteristic to compensate a decrease in magnetic attracting force. In a range where the magnetic attracting force is weakened, the assist spring strongly... Agent: Nixon & Vanderhye, PC

20090115556 - Divided adjustable armature for a circuit breaker: A divided armature for the trip mechanism of a circuit breaker especially useful for low trip current breakers allows for two independent adjustments: first of the magnetic air gap between the yoke and the armature and second of the clearance between the trip bar and the back plate of the... Agent: Schneider Electric / Square D Company Legal Dept. - I.p. Group

20090115557 - Electromagnetic relay: An electromagnetic relay includes an electromagnetic block formed by winding a coil around an iron core and a frame shaped card. One end portion of the frame-shaped card is engaged with a movable iron piece that is rotated by being attracted to and separated from a magnetic pole portion of... Agent: Osha Liang L.L.P.

20090115558 - Interface system for control lever: The invention relates to an interface system for a vehicle having a starter motor and a transmission control lever. There is a need for such an interface system which senses control lever position and prevents starter motor operation unless the control lever is in a park position. The interface system... Agent: Deere & Company