"The abolishment of pain in surgery is a chimera. It is absurd to go on seeking it...knife and pain are two words in surgery that must forever be associated in the consciousness of the patient."
Dr. Alfred Velpeau, French surgeon ; 1839
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| Number | Title | Issue Date |
| 7696650 | Driving circuit for switching elements A level shifting circuit, satisfying a requirement of a high tolerated dV/dt level, and a highly reliable inverter circuit, wherein a set pulse signal and a reset pulse signal, both of which are level-shifted to a potential side taking as reference a reference poten... | 04/13/2010 |
| 7391133 | Hybrid switch An electrical switching topology for a hybrid switch provides extremely low losses in both cryogenic and non-cryogenic electronic systems. In this switch having switch modules connected in parallel, switching losses in a first module are separated from conduction lo... | 06/24/2008 |
| 7294950 | Electrostatic actuator, electrostatic actuator driving method electromechanical transducer, and electromechanical transducer driving method An electrostatic actuator includes a stator having an electrode substrate, a movable unit having a movable element and an electrode arranged opposite to the electrode substrate, a plurality of first operation modules each of which issues an operation command for rea... | 11/13/2007 |
| 7239045 | Power distribution system and control system for same A control system for a power distribution system includes electrical operators each of which has an open input, a close input and an operator member adapted to cooperate with a corresponding circuit breaker operating mechanism. Each operator member responds to the c... | 07/03/2007 |
| 7235751 | Electric device, a current limiter and an electric power network An electric device including an electric switch having a plurality of contact members arranged in series to form a plurality of breaking points arranged in series. One of the contact members at each breaking point is movable. A drive is arranged to actuate each mova... | 06/26/2007 |
| 7215060 | Electrostatic actuator, electrostatic actuator driving method, electromechanical transducer, waveform output device and electric element An electrostatic actuator includes a waveform output register which generates waveform data having a drive time and a drive pattern on the basis of an operation request from the outside and has queues 0 and 1 to 3 holding the waveform data, a wa... | 05/08/2007 |
| 7180209 | Multiple function electronic drive An electronic drive system using a plurality of drive circuits for enabling greater plurality of functions by selectively placing drive signals on the driver outputs at one of two possible polarities. At least one of the enabled functions taking a substantially shor... | 02/20/2007 |
| 7170200 | Starter assembly for a gas discharge lamp The present invention comprises a unique starter assembly for a gas discharge lamp. The starter assembly comprises a main current path with a first leg connected to one electrode of a gas discharge lamp, and a second leg connected to a second electrode of the gas di... | 01/30/2007 |
| 6873110 | Hid single light emitting point lamp tube switching device for switching lamp tube in positions of far light and near light and the method of the same An HID single light emitting point lamp tube switching device is provided for switching the lamp tube between a far light position and a near light position. Initially, a strong current coil and a weak current coil are induced at the same time, so that the HID singl... | 03/29/2005 |
| 6750567 | Actuation and control device for electric switchgear An actuation and control device for opening and/or closing an electric switchgear which is connected to an electrical network and has at least one fixed contact and at least one movable contact. The actuation and control device includes an actuator operatively conne... | 06/15/2004 |
| 6750568 | Remote controlled auxiliary lock With an auxiliary lock operated by a built-in battery, it is desired to prevent the door from being kept locked even if the battery dies. The auxiliary lock body is provided with first and second voltage detecting means for detecting that the voltage of the battery ... | 06/15/2004 |
| 6625342 | Systems and methods for overcoming stiction using a lever A microstructure is provided including a base layer underlying a first and second structural plates. Operation of the microstructure is capable of overcoming stiction. Methods of operation include providing an edge of the first structural plate in contact... | 09/23/2003 |
| 6472837 | Multipolar electromagnetic switching module The present invention relates to a multipolar electromagnetic switching module designed to be connected by line connections (t1, t2, t3) to a main electromagnetic switching device (AP) and by load connections (U, V, W, u, v, w) to at least one motor and h... | 10/29/2002 |
| 6456025 | Motor operator for over-head air break electrical power distribution switches A motor operator for an overhead power switch is disclosed including a microcontroller, a unique and powerful array of well-integrated sensors, a motor and drive developing substantial torque and speed and coupled to a switch actuator and responsive to th... | 09/24/2002 |
| 6304049 | Multipolar electromagnetic switching module The present invention relates to a multipolar electromagnetic switching module that is connected by line connections (t1, t2, t3) to a main multipolar electromagnetic switching device (AP) and by load connections (U, V, We U', V', W') to at least one moto... | 10/16/2001 |
| 6215263 | Motor operator for over-head air break electrical power distribution switches A motor operator for an overhead power switch is disclosed including a microcontroller, a unique and powerful array of well-integrated sensors, a motor and drive developing substantial torque and speed and coupled to a switch actuator and responsive to th... | 04/10/2001 |
| 5754890 | System for automatic identification of a computer data entry device interface type using a transistor to sense the voltage generated by the interface and output a matching voltage level A circuit using a single transistor to detect the interface type to Which a combination pointing device is connected. The pointing device may be connected to a PS/2 interface, which generates a voltage greater than or equal to 0 volts, or a serial interfa... | 05/19/1998 |
| 5736827 | Motor driven step switch A motor-driven step switch for step transformers includes a drive motor connected to the step switch, display, input, and control units, a controller for actuating the drive unit in accordance with rotation direction, an information unit which obtains and... | 04/07/1998 |
| 5608598 | Effector with self-compensated contacts for power supply of a receiver circuit The present invention relates to an effector comprising power contacts for power supply of a receiver. The effector comprises an operating mechanism for the power contacts, this mechanism being actuated by an electromagnet. Between a power circuit for sup... | 03/04/1997 |
| 5526915 | Safety switch assembly The safety switch assembly is designed to provide a switch assembly to a tool, such as a meat slicer, in order to prevent the operation of the tool without manually holding the pressure sensitive safety handle. The assembly contains a control box having a... | 06/18/1996 |
| 5036214 | Remote control switch for controlling two electric supplies A remote control mechanism for controlling electricity from a non-interruptible electric supply, and for optionally and simultaneously controlling electricity from a second, but interruptible electric supply like that provided by a clock-actuated switch i... | 07/30/1991 |
| 4710645 | Device for monitoring the state of an electric switch or an electric relay A device for monitoring the state of a relay comprises an electrical insulation transformer whose secondary winding is connected, through a rectifier, to the output terminals of the relay. The primary winding of the transformer is in series with an oscill... | 12/01/1987 |
| 4661719 | Auxiliary switching circuit A circuit device which is connected to an existing clocked memory circuit to provide additional clocked memory circuitry for a plurality of substantially independent switches within the parameters and constraints established at the main control station fo... | 04/28/1987 |
| 4651024 | Electromagnetically actuated high DC current switch A high DC current switch includes a pair of annular, conductive rails with a pair of brushes mounted for rotary movement therebetween. DC current is conducted by the rails to and from the brushes in directions to electromotively accelerate the brushes int... | 03/17/1987 |
| 4494012 | Switch timer A switching timer device includes a manual switch having "on", "off" and "timer" positions. When the switch is set in the "on" position a load is supplied continuous power from a source. When the switch is set in the "timer" position, a load-powering powe... | 01/15/1985 |
| 4425513 | Method and device for providing dwell in timer controlled appliances The accumulated number of cycles of an alternating current power supply are counted and a first signal is generated when the count reaches a number representing a desired time lapse and a second signal is generated when a desired multiple of a number have... | 01/10/1984 |
| 4390795 | A.C. Power control for inductive loads An electronic switching system for inductive loads in A.C. circuits, comprising a triac switch in series with an inductive load such as transformer or motor, etc. across an A.C. voltage. The control voltage for the triac switch is provided by a smaller, l... | 06/28/1983 |
| 4386338 | Remote control system The present invention teaches a remote control system, also capable of designation as a universal switch receptacle system, which is usable in conjunction with remote control devices as well as ground fault circuit interrupting systems. Features include, ... | 05/31/1983 |
| 4369692 | Switching system for high DC current A switching system for commutating high DC current from a first to a second pair of conductors comprising a switching armature slidably engaging the first pair of conductors, insulating inserts disposed on the first pair of conductors adjacent the second ... | 01/25/1983 |
| 4354747 | Switching circuit for regulation of camera functions A digital circuit is described for controlling functions of a camera wherein the circuit is powered by a potential source which is connected to the circuit through a relay actuated switch. The circuit employs a plurality of D-flip flops to regulate functi... | 10/19/1982 |
| 4349748 | Timer and power control system A timer system includes a power switch operable to power circuit closing and opening conditions, timing means for identifying various timing segments over a 24-hour period and marker storage means having respective power turn on and off marker storage loc... | 09/14/1982 |
| 4303836 | Audio silencer for radio and T-V sets A silencer adapted to suppress the audio output of a radio or television set during commercial breaks in a program. The silencer which requires no wiring changes in the set includes a probe insertable in the existing earphone jack. The probe is constitute... | 12/01/1981 |
| 4291236 | Remote receiver for load and rate control in a power transmission system A remote receiver for decoding and responding to control pulses imposed on the power lines of a power transmission system. A large number of receivers can be connected to the power lines in, for example, a centralized load management system and can switch... | 09/22/1981 |
| 4266144 | Detection means for multiple capacitive sensing devices A detection circuit for detecting discrete states of multiple capacitive sensing devices in a continuum provides an output which is linearly variable with respect to changes in the states of the sensing devices. The circuit uses either a time interval mea... | 05/05/1981 |
| 4213061 | Electronically actuated electric switch A bi-directional silicon controlled rectifier forms an electric switch arranged to be connected in an alternating current supply circuit in series with an electric load to be controlled. The gate electrode of the silicon controlled rectifier is connected ... | 07/15/1980 |