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| Number | Title | Issue Date |
| 7142967 | Features of main control computer for a power machine The present invention is directed to a computer based control system for controlling hydraulic and electromechanical actuators on a power machine, such as a skid steer loader. The computer based control system is configured to implement a number of features to enhan... | 11/28/2006 |
| 6891457 | Power tools Power tool (10) may include solenoid coil (1) that functions as a drive source for plunger (5). Battery (3) may be connected with solenoid coil (1), battery (3) supplying a current to solenoid coil (1). Solenoid coil ... | 05/10/2005 |
| 6388859 | Shock resistant breaker shunt trip A shunt trip assembly having a tripping solenoid and a locking solenoid selectively blocks movement of the tripping solenoid to prevent inappropriate tripping of a circuit breaker during shock loading thereof. The tripping solenoid includes a tripping plu... | 05/14/2002 |
| 6262648 | Electromagnetic actuator Electromagnetic actuator for moving a contact into a switched-on or switched-off state, comprising a contact-actuating rod which is displaceable in the longitudinal direction between a first position, corresponding to the switched-off state, and a second ... | 07/17/2001 |
| 5387892 | Permanent magnet release solenoid for automatic circuit breakers and method of making The solenoid (1) is of the type having a magnetic circuit (2, 3, 13) on which a permanent magnet (6) and an electric winding (7) would induce respective magnetic fields; the magnetic circuit has a stationary portion including a squared annular shroud (2) ... | 02/07/1995 |
| 5039968 | Rotor setting arrangement A system for setting in particular the rotor (2) of a coaxial or waveguide switch in n possible locking positions S1, S2, S3, . . . has an axially staggered drive on one side and on the opposite side a locking means (6, 7,... | 08/13/1991 |
| 5012292 | Device for setting the rotor of a rotary switch Device for setting the rotor of a rotary switch in one of three possible switching positions (positions 1 to 3). Such rotary switches can be for example wave guide or coaxial switches. The excitation of windings in this device for a rotary direction is ef... | 04/30/1991 |
| 4947284 | Field-installable heavy duty undervoltage release An undervoltage tripping unit for a power line circuit breaker features a holding solenoid and a boostig solenoid having their associated plungers coupled to move together so as to be retracted against the force of plunger biasing springs when both soleno... | 08/07/1990 |
| 4893101 | Resettable ground fault circuit interrupter A resettable circuit interrupter in a ground fault detector circuit utilizes a housing which slideably retains a solenoid coil wound on a bobbin. A contact carrier is attached to the bobbin and one or more moveable contacts are provided on the carrier opp... | 01/09/1990 |
| 4733212 | Pulse latching solenoid A latching solenoid is provided which has first and second coils having a central axial opening arranged to produce oppositely polarized first and second magnetic fields along the axial opening. A paramagnetic path is provided from the central opening aro... | 03/22/1988 |
| 4649241 | Solenoid actuated high speed, high current making switch with a movable contact ring A high-speed, high-current making switch is provided which has a driver which forms an air cylinder in the housing and which has movable contacts attached thereto. The driver moves the contacts to make and break the circuit. The force to move the driver i... | 03/10/1987 |
| 4647889 | Rotary control having variable detents A rotary control having a variable detent is disclosed. The control, for electrical instruments and the like, includes a manually rotatable shaft to which a plate is coaxially mounted. The plate includes magnetizable flutes extending radially therefrom, e... | 03/03/1987 |
| 4544987 | Magnetically operated AC switching device with delay-on-dropout A magnetically operated AC switching device, such as an AC electrical contactor, is operable with a delay-on-dropout feature to permit safe shutdown of equipment energized therethrough in case of power failure. The device includes an AC pickup winding whi... | 10/01/1985 |
| 4500861 | Sector motor having latching means for rotor in multiple positions A sector motor has a rotor which is rotatable to one of three positions in a housing. The rotor carries field magnets surrounding stationary armature poles carried by the housing. An arcuate 90° slot in one end of the housing receives an arcuate 45° arm... | 02/19/1985 |
| 4327344 | Solenoid with mechanically latchable plunger A mechanically latchable solenoid having a single coil and a single-piece armature or core plunger having a latch pin fixed thereto. The plunger is moved to a first, retracted position by energization of the coil with a pulse of either direct or alternati... | 04/27/1982 |
| 4213109 | Electromagnetic tripping device An electromagnetic tripping device for protecting a printed circuit card by opening an electrical circuit of the card in response to an overcurrent of the circuit. The device includes contacts and an energizing coil which are connected in series with the ... | 07/15/1980 |
| 3984795 | Magnetic latch construction An electrically releaseable permanent magnet latch includes a magnetic tube disposed within a U-shaped magnetic frame. Disposed within the tube are a lightweight armature and a coil spring biasing the armature forward. An electromagnet coil is wound about... | 10/05/1976 |
| 3944957 | Flux-transfer trip device for a circuit breaker This trip device comprises a permanent magnet of cobalt-rare earth material and a plunger which is normally held in a withdrawn position by the permanent magnet. A tripping coil surrounds the plunger and, upon energization, develops tripping flux that opp... | 03/16/1976 |
