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| Number | Title | Issue Date |
| 7403837 | Portable device used to at least visualize the process data of a machine, a robot or a technical process A portable device (1) with at least one optical output device (2) for displaying at least process data of a machine, a robot or a technical process, with at least one input device (3) for at least intervening in the operating functions of the de... | 07/22/2008 |
| 7372684 | Power supply device A power supply device has a pulse width control circuit for controlling voltage converting operation of a voltage converting circuit by changing a pulse width. A momentary interruption detecting circuit detects a change in an output voltage when the output voltage s... | 05/13/2008 |
| 7215524 | Protection device for power source and electronic device The present invention provides a power source protection device comprising a switching circuit and an overload circuit coupled between the switching circuit and power source for driving the switching circuit to limit current stopping the increase in the current outp... | 05/08/2007 |
| 7090501 | Connector apparatus A connector system includes a circuit board having a plurality of holes extending therethrough. First and second connector bodies, each having a front wall, are positioned on first and second sides of the circuit board, respectively. The front walls of the connector... | 08/15/2006 |
| 6992873 | Automated AC line filter and surge suppression apparatus and method A automated AC line filter and surge suppression apparatus 100 having an inductive current sense loop (ICSL) circuit 10 for sensing inductive current at a load and controlling the application of AC line filter 112 to an AC power line to the load... | 01/31/2006 |
| 6992452 | Dynamic current limiting A system and method for generating commands for current subject to dynamic determinations of a limit. In one embodiment, the dynamically determined limit is a function of power dissipation in a component estimated from a measured current level and as a function of a... | 01/31/2006 |
| 6971889 | Electrical connector with continuous strip contacts An electrical connector contact strip including spaced electrical contacts, a body and fusible elements. The spaced electrical contacts each have a main section and a tab section extending from an end of the main section. The body includes dielectric material molded... | 12/06/2005 |
| 6917856 | Robot It is constructed so as to detect a joint movement position of a robot arm by a position detector and a joint movement speed is calculated from change amounts of the joint movement position and elapsed time and is compared with an allowable movement speed and unlock... | 07/12/2005 |
| 6778370 | Adaptive recloser/sectionalizer A recloser is monitored and adaptively controlled so that it will operate in a manner responsive to prevailing conditions as either a recloser or as a sectionalizer. The prevailing conditions that are determined are those that will affect the operation of the reclos... | 08/17/2004 |
| 6735533 | Only picked up phases recloser control A recloser trips on one phase for single-phase only fault conditions, two phases for two-phase fault conditions, or all three phases for three-phase fault conditions. During power delivery, the recloser monitors the three phases of a power line (e.g., phases A, B, a... | 05/11/2004 |
| 6735534 | One or all phases recloser control A recloser trips on one phase for single-phase only fault conditions, or all phases for multi-phase fault conditions. During power delivery, the recloser monitors the three phases of a power line (e.g., phases A, B, and C). If a fault is detected on one phase, then ... | 05/11/2004 |
| 6388852 | Flicker protection circuit A power line flicker protection circuit, used to protect electronic equipment, features the following: A transformer (T1), provides power to the DC power supply (FIG. 2), and signaling to the auto reset watchdog circuit (FIG. 3) and the timer circuit (FIG... | 05/14/2002 |
| 6356806 | Method for handling a voltage drop in the control of a robot and for restarting a robot following a voltage drop A method for handling the voltage drop, at least in the control unit of a robot with a PC control is provided that minimizes the time of a plant stoppage and avoids wasteful process interruptions. The PC control has a real time operating system for the ti... | 03/12/2002 |
| 6118642 | Electronic regulation circuit for driving a power device and corresponding protection method of such device An electronic regulator for driving a power device connected to an output load having a first portion and a second protection portion, the first portion including a controlled switching element connected upstream of the power device and controlled by a ti... | 09/12/2000 |
| 5379178 | Method and device for triggering an electromagnetic consumer In the case of a method and a device for triggering an electromagnetic consumer (1), which is connected in series to a switching means (2), the voltage applied to the switching means (2) is fed to a voltage comparison means (12) and compared there to the ... | 01/03/1995 |
| 5091816 | Procedure and device for overload and short-circuit protection of output drivers A procedure and device for overload and short-circuit protection of output drivers, uses a circuit that functions at several control voltage levels and in which at least one output driver is controlled in a normal situation by a reference value set indepe... | 02/25/1992 |
| 4949211 | Protective, bi-level drive for FET's A bi-level control signal is applied to an FET while the FET's drain-to-source voltage is sensed. The control signal includes a first, relatively low test level followed by a second, relatively higher operating level. The magnitude and duration of the tes... | 08/14/1990 |
| 4845594 | Reclosing relay with nonvolatile memory of operations A reclosing relay for use in an electrical power system with a circuit breaker for clearing line faults by tripping and reclosing. The breaker has auxiliary contacts defining the state of the circuit breaker as open or closed. The reclosing relay includes... | 07/04/1989 |
| 4538197 | Synchronism check relay A synchronism check relay includes both a high set and a low set slip cut-off circuit. The low slip cut-off setting is based upon the maximum slip frequency that can be tolerated and still allow reclosing. The high slip cut-off setting is a function of th... | 08/27/1985 |
| 4438473 | Power supply for an intrinsically safe circuit An intrinsically safe power supply employing a binary current interrupter connected between the power source and the electrical load. Normally the load is situated in a potentially dangerous environment, like a coal mine, and the intrinsically safe power ... | 03/20/1984 |
| 4103316 | Apparatus for preventing the occurrence of possible transient phenomena in an electric power transmission circuit Apparatus for preventing the occurrence of possible transient phenomena in the circuit including a power source and its load connected thereto when the supply of electric power from the power source to the load, which has been interrupted, is restarted. T... | 07/25/1978 |
| 3979644 | Overvoltage protection arrangement An improved overvoltage protection circuit interrupts a power transmission path in an open circuit mode responsive to an overrange input power potential, and is automatically reset to its quiescent operative condition when the overvoltage condition abates... | 09/07/1976 |
| 3974446 | Polyphase fault current flow detecting and resetting means Detection of fault current flow in any conductor of a polyphase alternating current system is provided by a fault responsive device that is reset only when normal current flows in each conductor. A reed relay is latched in operated condition on the occurr... | 08/10/1976 |
