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A self contained protective enclosure with an opening for entry and egress and a screen for ventilation and viewing.
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| Number | Title | Issue Date |
| 6313549 | Emergency evacuation system Embodiments of an emergency evacuation system are disclosed which may be installed within the knockouts of a panel of a modular work space system. During normal operation a battery power source within the emergency evacuation system is charged by normal A... | 11/06/2001 |
| 6137192 | Embedded backup energy storage unit A backup energy unit for an electrical device having a power source, an operational load, and containing a layered electrical device having a top exterior surface and a bottom exterior surface, such as an integrated chip or layered circuit board. The ener... | 10/24/2000 |
| 6127748 | Installation for making electrical connection between an equipment assembly and a command and control system An installation for the electrical connection between an assembly of items of electrical equipment which are affixed onto a common baseplate and a system for command and control of that assembly. The installation includes an electrical interface device wh... | 10/03/2000 |
| 6121694 | Back-up power supply serving to compensate temporarily for main power supply deficiency The invention concerns a back-up power supply of the type serving to compensate temporarily for an absence of a DC input voltage (Ve) from a main power supply (15) by delivering a voltage that is higher than a threshold value (Vmin) to a load (10). The ma... | 09/19/2000 |
| 6111328 | Switching assembly Three switching units and three smoothing capacitors are disposed in parallel with each other in the x-direction on a substrate having an x-y plane. A surface conductor and a rear conductor, which include bases extending in the x-direction and three branc... | 08/29/2000 |
| 6087740 | Portable computer containing bidirectional current blocking MOSFET for battery disconnect switching A bidirectional current blocking switch is disclosed. The switch includes a four-terminal MOSFET in which there is no source-body short. The voltages applied to the source and drain terminals are both higher than the voltage applied to the body terminal (... | 07/11/2000 |
| 6078108 | Apparatus for interrupting the flow of current in a cable An apparatus for interrupting the flow of current in a cable, which cable leads from the battery in a motor vehicle to a consumer, also located in the vehicle, such as the starter, engine or the like. A housing is provided, having two connection terminals... | 06/20/2000 |
| 6075295 | Single inductor multiple output boost regulator The present invention provides two or more output voltages from one input voltage and one inductor. Each output voltage is formed by a switch controlling the charge delivered to each of the corresponding output capacitors. Preferably, a diode is placed in... | 06/13/2000 |
| 6069412 | Power factor corrected UPS with improved connection of battery to neutral An uninterrupted power supply (UPS) device with uninterrupted neutral from input to output utilizes the same converter for converting rectified AC power and battery power to positive and negative high voltage (HV) rails. A simple circuit is utilized for c... | 05/30/2000 |
| 6064125 | Uninterruptible power supply unit An uninterruptible power supply unit for coupling between an adapter with an adapter connector and an electronic device in accordance with one embodiment of the present invention includes a self-contained housing, a backup power supply, and an output swit... | 05/16/2000 |
| 6064127 | Switch network A switch network comprises N input ports and T output ports for mutually and individually connecting any P (PࣘN and PࣘT) inputs and any P outputs. Each switch has four poles and is capable of connecting the first pole to a second, a third or a fourth ... | 05/16/2000 |
| 6064126 | Switches and switching systems An electrical switch has an evacuated housing with input and output terminals each connected to a respective group of metal tracks extending parallel and insulated from one another. A second silicon plate is cut to form several bridging elements, each hav... | 05/16/2000 |
| 6064124 | Power supplying apparatus for use in an image forming apparatus In a power supplying apparatus for use in an image forming apparatus, when a first transistor is switched on, a first photo-triac coupler and a first triac switch on so that a fixing heater is powered on. After a predetermined time, a second transistor is... | 05/16/2000 |
| 6060790 | Solar array switching unit A solar array switching (SASU) unit (22) according to the present invention includes a control system (24), a solar cell array (26) and switch circuits (28). The SASU unit (22) is associated with a power card (30) for receiving an output from the array (2... | 05/09/2000 |
| 6060796 | Protective circuit The invention concerns a protective circuit for monitoring an object which can move between two end positions, for example a displaceable safety door (1) of an electric machine. This type of protective circuit has a very simple and distinct design and can... | 05/09/2000 |
| 6060795 | Semiconductor power pack A power pack for providing power electronics at high temperature with high dI/dt, current, and voltage capability. The power pack having three layers. A top layer for providing: a matching composite Coefficient of Thermal Expansion (CTE) between power dev... | 05/09/2000 |
| 6060793 | Electronic switch An electronic switch has an input terminal, an output terminal and an electronic switch unit between the input terminal and the output terminal controlled by a control circuit which extends from its anode to its trigger and is under the control of an actu... | 05/09/2000 |
| 6060792 | Instantaneous junction temperature detection A circuit, for detecting a junction temperature of an insulated gate bipolar transistor (IGBT) which is alternately biased on and off in response to a gate signal, includes a differentiator circuit operable to receive a collector to emitter voltage of the... | 05/09/2000 |
| 6060791 | Ultra-compact Marx-type high-voltage generator An ultra-compact Marx-type high-voltage generator includes individual high-performance components that are closely coupled and integrated into an extremely compact assembly. In one embodiment, a repetitively-switched, ultra-compact Marx generator includes... | 05/09/2000 |
| 6057612 | Flat power pack A power pack including a power device and driver circuit sandwiched between a base plate and a lid. The base plate and lid having flat exterior surfaces for bonding with heat exchangers and/or an external bus to provide both two-sided cooling and two-side... | 05/02/2000 |
| 6057611 | Switching control of an operating circuit A circuit arrangement for operating a load, in which in normal operation control energy for activating the switching element or switching elements (Ta, Tb) is obtained from the energy content of the freewheeling current anti-parall... | 05/02/2000 |
| 6054782 | Pulse or time activated control device having a remote switch A control device employing a remote switch, intended to ensure activation and de-activation of electrical devices in accordance with a plurality of pre-established control functions, from different control members. Each of the control members is constitut... | 04/25/2000 |
| 6051894 | Safety device of industrial robot The safety device of industrial robot of the invention is intended to assure safety of the operator for teaching operation of an industrial robot. In the safety device of the industrial robot of the invention, a switch having two contacts working simultan... | 04/18/2000 |
| 6051895 | Electronic switch relay An electronic relay for use with an ultrasonic transducer. The electronic relay selectively couples the ultrasonic transducer to an electronic circuit. The transducer includes an input/output port for receiving excitation signals from the circuit and for ... | 04/18/2000 |
| 6049143 | Electrical connection safety apparatus and method An electrical connection safety apparatus which eliminates the risk of fire or electric shock associated with current overload faults in electrical systems. The apparatus senses or detects the electrical current rating of electrical appliances or electric... | 04/11/2000 |
| 6049141 | Device and a method allowing multiple batteries to share a common load The present invention provides a battery system, a device, and a method to allow multiple batteries with varying capacities and power capabilities to drive a common load. Furthermore, the present invention provides a method for adjusting the output curren... | 04/11/2000 |
| 6049144 | Rechargeable battery with a built-in safety circuit for a portable electric apparatus A rechargeable battery for a portable electric apparatus has at least one battery cell and a fuse device connected in series with the battery cell. Furthermore, the battery has a voltage-controlled active device, which is connected in parallel to the batt... | 04/11/2000 |
| 6040639 | Circuit for improved load transient response in power supplies An apparatus contains a main electrical supply and an additional electrical supply for supplying additional electrical current in response to a change in an output load supplied by the main electrical supply. A differential measuring device senses a chang... | 03/21/2000 |
| 6040641 | Method for manufacturing probabilistic switch using multiplicative noise A method for manufacturing a probabilistic switch using multiplicative noise, which can be used in a probabilistic computer is disclosed. The probabilistic switch, in which the probability varies with the initial condition and multiplicative noise intensi... | 03/21/2000 |
| 6040640 | Direct voltage back-up system at a power supply outlet A back-up device includes at least one back-up battery, in particular a rechargeable battery which can be charged via the power supply, and a control unit. The control unit connects the back-up battery when the actual value of the DC voltage is less than ... | 03/21/2000 |
| 6037677 | Dual-pitch perimeter flip-chip footprint for high integration asics A connection array for a chip provides a substantial increase in numbers of signal connection locations and a power distribution arrangement of improved robustness and noise immunity while accommodating multiple power supply voltages by providing pairs of... | 03/14/2000 |
| 6034449 | Load drive circuit The invention relates to a load drive circuit wherein an emergency shutdown switch for forcible interruption and a normal shutdown switch for normal current control are disposed in series in a load power supply circuit. An emergency shutdown switch (SW | 03/07/2000 |
| 6034446 | Programmable switch, adjustable capacitance and resonant circuit effected by means of such a switch The invention concerns an integrated circuit comprising a resonant circuit (L,20) for receiving by electromagnetic induction an alternating voltage (Vac), the resonant circuit comprising at least one capacitance (C1-Ci) switchable by means of a... | 03/07/2000 |
| 6034447 | Connector for consumer networks A connection arrangement for secondary distribution systems which effects a connection in the state free of short circuits, within permissible performance quantities, by means of at least one interrupter assembly. Besides current and voltage sensors with ... | 03/07/2000 |
| 6031300 | Bridge tap remover To eliminate interference with digital broadband service created by bridge tapped connections in local loop distribution cables, a switch is associated with each broadband customer drop cable connection in the terminals along the length of each distributi... | 02/29/2000 |
| 6031298 | 2N redundant power system and method using cross-coupled AC power transfer A 2N redundant power system and method is disclosed that uses cross-coupled AC power transfer. Two cross-coupled AC Transfer switches always connect power converting hardware to an active AC source so that the 2N redundant power system prevents changes in... | 02/29/2000 |
| 6031297 | Printed circuit board allowing usage of alternative pin-compatible modules Printed circuit board comprising two power supplies V1 and V2 and a ground (GND), and a plurality of modules among which at least one module supplied by one of the power supplies can be replaced by another pin-compatible module suppl... | 02/29/2000 |
| 6031302 | Battery management system with current measurement across on-resistance of semiconductor cutout switch An improved battery management circuit and system are disclosed. The improved battery management system relates to the type having at least one battery cell that is connected in a circuit with battery powered components, a current sensing resistance that ... | 02/29/2000 |
| 6020657 | Power supply for providing instantaneous energy during utility power outages A power supply system and method provides for smooth transitions between a utility power, transitory instantaneous power, and backup power in the event of a utility power failure of a utility supplying power to a load. As the utility power weakens due to ... | 02/01/2000 |
| 6016017 | System for providing an uninterrupted supply voltage and method A system (200) comprises a regulator (250), a battery unit (220), a voltage sensitive circuit (210, e.g., memory circuit) and a switchable sensor (280). The battery unit (220), the memory circuit (210) and the switchable sensor (280) are parallel coupled ... | 01/18/2000 |
