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| Number | Title | Issue Date |
| 7323957 | Electro-mechanical relay The electro-mechanical relay comprises a base having a transversal axis and a rocking member operatively connected over the base. The rocking member is pivotable, with reference to the transversal axis, between a first position and a second position. The relay also ... | 01/29/2008 |
| 7312550 | Architecture for electric machine In one aspect, an alternator is described which includes a current control apparatus including a stator winding and a control winding, wherein current control in the control winding regulates the stator winding. In another aspect, a gas turbine engine includes a mul... | 12/25/2007 |
| 7288923 | Voltage-limited electric machine An electric alternator having a rotor, stator and at least one winding in the stator adapted to conduct a current, the machine also having and first and second magnetic circuits around different portions of the winding which may be configured relative to one another... | 10/30/2007 |
| 7236072 | Passive magnetic latch A passive magnetic latch is disclosed. The latch includes, according to various embodiments, a magnetically-actuated switch and a hard, non-linear biasing magnet. The switch may include components that, when polarized, cause the switch to transition from a first sta... | 06/26/2007 |
| 7154061 | Interrupter assembly for a circuit breaker A preferred embodiment of an interrupter assembly for a circuit breaker includes a first contact, a conductor, and a second contact mounted on the conductor. The second contact and the conductor are movable in relation to the first contact between a first position w... | 12/26/2006 |
| 7126313 | Architecture for electric machine The invention includes an electric machine having a rotor, stator and at least one winding in the stator adapted to conduct a current, and a secondary winding, electrically isolated from the first winding and inductively coupled to the first winding, which may be us... | 10/24/2006 |
| 7016620 | Method and device for controlling a print process with high color density In a method and device to control a print process in a printer or copier, with a character generator generating a latent print image and a latent toner marking on an image carrier. An exposure energy per unit area for the generation of the latent toner marking is de... | 03/21/2006 |
| 6965183 | Architecture for electric machine The invention includes an electric machine having a rotor, stator and at least one winding in the stator adapted to conduct a current, and a secondary winding, electrically isolated from the first winding and inductively coupled to the first winding, which may be us... | 11/15/2005 |
| 6920023 | Current limiting means for a generator The invention provides means of limiting maximum current conducted through windings of an electric machine having a rotor and a stator. By encouraging an appropriate leakage flux around a winding, a leak impedance can be achieved which may be used, according to the ... | 07/19/2005 |
| 6476703 | Control unit of a valve mechanism The invention describes a control unit of a valve mechanism with an electromagnetic coil (1) where the electromagnetic coil (1) is electrically and mechanically connected to the control unit via a connection device which has an electrically conducting spr... | 11/05/2002 |
| 5990773 | Thermal switch devise comprising reed switch and temperature-sensitive magnetic structure supported in and out, respectively, of an inner cylinder of case In a thermal switch device having a reed switch, a temperature-sensitive magnetic cylinder (1) and cylindrical permanent magnets (2a, 2b) disposed around the reed switch (3), and an insulator case (7), the case is provided with an inner cylinder (5) forme... | 11/23/1999 |
| 5397948 | Magnetic motor with temperature related activation A magnetic motor is shown having magnetic members situated in relatively close proximity to each other; relative movement between the magnetic members is brought about by bringing the temperature of at least one of the magnetic members to the curie temper... | 03/14/1995 |
| 5168545 | Temperature operated control system, control device therefor, and methods of making the same A temperature operated control system, a temperature operated control device therefor and methods of making the same are provided, the temperature operated control device comprising a support, an electrical reed switch unit carried by the support, the ree... | 12/01/1992 |
| 5095295 | Superconducting switching device A new type of reed switch is described. The switch is comprised of a fixed lead and a flexible reed made of a magnetic substance which are contacting in a glass enclosure. Two magnet rods are coaxially arranged in the same direction with a superconducting... | 03/10/1992 |
| 4962407 | Electrophotographic copying apparatus having toner image density measuring arrangement for detecting toner concentration An electrophotographic copying apparatus includes a photosensitive member, a sensitizing charger, a developing unit for developing the electrostatic latent image by a developer incorporating toner and carrier, and a system for compensating toner concentra... | 10/09/1990 |
| 4745385 | Switching relays A temperature compensated switching relay with thermally effected switching delay should be of simple and compact construction and reliable in switching with precisely adjustable switching delay. For this purpose, the switching relay comprises a switching... | 05/17/1988 |
| 4703296 | Thermal reed switch assembly A thermal reed switch assembly including two magnetic reed switches having two permanent magnets and at least two semicylindrical thermal magnetic members each having mutually different magnetic tansition points sandwiching the reed switch therebetween. A... | 10/27/1987 |
| 4582675 | Magnetic switch for reactor control rod A magnetic reed switch assembly for activating an electromagnetic grapple utilized to hold a control rod in position above a reactor core. In normal operation the magnetic field of a permanent magnet is short-circuited by a magnetic shunt, diverting the m... | 04/15/1986 |
| 4516101 | Air-flow-rate sensors A air-flow-rate sensor having a thermo-magnetically operated switch including a U-shaped temperature sensitive ferromagnetic piece, a positive temperature characteristic thermister, and two terminal plates, which are stationarily mounted in an opening cha... | 05/07/1985 |
| 4509029 | Thermally actuated switch A thermal switch includes a reed switch surrounded by a centrally located, annular collar made of a ferrite material and a pair of annular permanent magnets spaced from the ends of the ferrite collar and positioned axially toward the ends of the reed swit... | 04/02/1985 |
| 4504809 | Miniature thermomagnetic relay A miniature latching thermomagnetic relay is disclosed which offers high contact forces, small size, and low cost. Ferromagnetic material is placed upon heaters in a low thermal conductivity substrate. A permanent magnet beneath the substrate attracts a m... | 03/12/1985 |
| 4456898 | Thermal compensators for magnetic circuits Thermal compensators comprising at least one metallic alloy in amorphous form which are especially useful in stabilizing magnetic devices under conditions of changing ambient operating temperature are provided.... | 06/26/1984 |
| 4454491 | Temperature sensing circuit breaker or switch A circuit breaker or switch utilizes the Curie point temperature characteristics of an amorphous ferromagnetic metal in cooperation with a magnet to make or interrupt an electrical circuit upon the amorphous material being heated to its Curie point temper... | 06/12/1984 |
| 4434411 | Temperature-sensitive switch A temperature-sensitive switch is provided with a resilient movable cantilever composed of amorphous ferromagnetic material having a Curie point. The cantilever is adapted to carry a first contact member. A second contact member is disposed adjacent the f... | 02/28/1984 |
| 4414520 | Thermostat Thermostat comprises a heat sensitive body of ferromagnetic material and a movable magnet cooperating therewith. A pair of a contacts which are closed or open depending upon the position of the magnet are provided where the position in turn depends upon t... | 11/08/1983 |
| 4414519 | Temperature-sensitive relay A temperature-sensitive relay is provided with a resilient, movable cantilever composed of amorphous ferromagnetic material having a Curie point. The cantilever is adapted to carry a first contact member. A second contact member is disposed adjacent the f... | 11/08/1983 |
| 4404538 | Temperature switch including amorphous metal sheet A temperature switch includes a housing, a movable contact mounted in the housing for movement between a first and second position, a fixed contact mounted in the housing and operatively associated with the movable contact for engagement with the movable ... | 09/13/1983 |
| 4389628 | Thermo-magnetically operated switches having two different operating temperatures A thermo-magnetically operated switch having lower and higher operating points is maintained open below the lower operating point and above the higher operating point and is maintained closed between the two different operating points, and comprises a ree... | 06/21/1983 |
| 4383231 | Temperature switch having a magnetically soft amorphous metal member A temperature switch includes a housing, a fixed contact positioned in the housing, a movable contact member mounted in the housing carrying a movable contact and urged to first and second positions where the movable contact is in abutment with or displac... | 05/10/1983 |
| 4325042 | Thermo-magnetically operated switches having two different operating temperatures A thermo-magnetically operated switch having two different and predetermined lower and higher operating points on a temperature scale so that it may be maintained open below the lower operating point and above the higher operating point and be maintained ... | 04/13/1982 |
| 4320370 | Thermo-sensitive reed switch A thermo-sensitive reed switch in which the thermo-sensitive magnetic element is slit parallel to the reeds in the element.... | 03/16/1982 |
| 4266517 | Differential pressure switch device responsive to differential pressure and temperature change A differential pressure switch device having a flexible diaphragm between two chambers subject to differential pressure, a permanent magnet movable with the diaphragm against a biasing force when pressure differences occur in the chambers, a thermo ferrit... | 05/12/1981 |
| 4266211 | Snap action thermostats A thermostatic switch having a magnetic armature made of a Curie point alloy which changes its magnetic permeability as a function of an increase or decrease in the temperature. The thermoswitch may be normally open or normally closed so that the switch w... | 05/05/1981 |
| 4224588 | Electric relay having multiple operational thresholds Electric relay comprising flexible-blade switches having multiple operational thresholds. In this relay, the most sensitive switches are within the coil whereas the least sensitive switches are located outside the coil, the magnetic circuit being directed... | 09/23/1980 |
| 4208643 | Magnetically actuated mercury switch In a switching device having first and second conductor elements and an operating mechanism shiftable to and from a first position wherein the conductor elements are electrically connected to each other to establish a conductive path therebetween. The dev... | 06/17/1980 |
| 4121184 | Electromagnetically controlled, temperature-sensitive (ECTS) reed switch with substantially hystersis free operation An electromagnetically controlled, temperature-sensitive (ECTS) reed switch comprising a temperature-sensitive reed switch with an electromagnetic coil spirally wound around the exterior thereof for initiating a switching action of the reed switch indepen... | 10/17/1978 |
| 4092586 | Temperature-sensing circuit A temperature-responsive circuit comprising an ECTS reed switch and an interrogation means for determining the operability and accuracy of the temperature-responsive portion of the circuit.... | 05/30/1978 |
| 4023128 | Temperature responsive reed switch A temperature responsive reed switch having magnetic reed pieces, a permanent magnet disposed near a contact of the reed switch and being magnetized in an axial direction of the reed switch, two temperature responsive magnetic materials disposed adjacent ... | 05/10/1977 |
| 4005726 | Thermomagnetic valve A hot fluid is directed through a valved conduit inlet. Downstream of the inlet, the conduit divides into a pair of outlets through which the hot fluid flows. The flow through the outlets is controlled by a pair of vertically oriented valves linked togeth... | 02/01/1977 |
| 4004259 | Temperature responsive electric switch A thermomagnetic switch is mountable on a chamber wall to extend into a liquid filled chamber. A reed switch in the switch is controlled by the strength of a magnetic field produced by a cylindrical magnet surrounding the reed switch. The magnetic flux pa... | 01/18/1977 |
