| Patent Number |
Title Of Patent |
Date Issued |
| 7367384 |
Integrated heat exchangers in a rack for vertical board style computer systems |
May 6, 2008 |
| A system for cooling heat-generating objects, such as computer boards situated in a rack, includes an enclosure in which the heat generating objects are situated. The enclosure has an air inlet and an air outlet, and a fan induces airflow into the air inlet, through the enclosure and |
| 7352082 |
Transfer switch device and method |
April 1, 2008 |
| This disclosure is concerned with devices and methods for voltage source transfer switching that reduces or eliminates transformer saturation due to DC flux built up during a transfer event. First and second voltage sources (primary and alternate) are connectable to a load via corres |
| 7255640 |
Cable and air management adapter system for enclosures housing electronic equipment |
August 14, 2007 |
| The present invention provides a cable-air management adapter system ("CAMAS") that addresses airflow, heat buildup and cable routing concerns in enclosures that house electronic equipment. The CAMAS allows users to work from a single frame to increase an enclosure's size by adding m |
| 7132951 |
Apparatus and method for protecting an uninterruptible power supply and critical loads connected |
November 7, 2006 |
| An apparatus and method for monitoring and controlling a backup power source and one or more critical loads powered thereby is disclosed. The apparatus is constructed in the form of an electrical distribution panel that includes electronic systems for monitoring the current to the cr |
| 7072182 |
Switching assembly |
July 4, 2006 |
| A switch assembly and method includes a heat sink with two switch modules coupled thereto. Both of the switch modules are used in switching operations to make use of the entire heat sink, providing improved heat dissipation. The switch modules each have first and second switch device |
| 6917124 |
Uninterruptible power supply |
July 12, 2005 |
| An uninterruptible power supply is disclosed that includes a digital controller comprising a plurality of microprocessors. These microprocessors are programmed and arranged to provide various control features heretofore unavailable using analog controllers of the prior art. |
| 6881898 |
Remote distribution cabinet |
April 19, 2005 |
| The present invention is directed to an electrical equipment enclosure assembly, particularly those used to house power distribution equipment. The enclosure uses the internal structural members and panel components to form the enclosure frame. The present invention is also designed to b |
| 6879060 |
Method and apparatus for transfer control and undervoltage detection in an automatic transfer sw |
April 12, 2005 |
| An automatic transfer switch is disclosed that features a novel arrangement for detecting a failure of the power source as well as a novel arrangement for preventing cross-conduction between the first and second signal sources during a rapid transfer. |
| 6796372 |
Single or dual buss thermal transfer system |
September 28, 2004 |
| A cooling system for use in conjunction with electronic devices (such as a computer) is disclosed. The cooling system is composed of several segments that comprise a continuous thermal path from the heat producing electronic component to a primary fluid circuit. The system transfers the |
| 6768223 |
Apparatus and method for rapid fault detection and transfer in a utility-interactive uninterrupt |
July 27, 2004 |
| A method and apparatus are disclosed for improving the disturbance pass through characteristics of a line interactive uninterruptible power supply ("UPS"). One disclosed technique uses a naturally commutated fast utility disconnect switch, wherein the switch is self commutated by the UPS |
| 6761212 |
Spiral copper tube and aluminum fin thermosyphon heat exchanger |
July 13, 2004 |
| The present invention is directed to a thermosyphon heat exchanger. The thermosyphon system eliminates the need for costly and inefficient moving parts in the cooling system. The system also minimizes failures rendering the system inoperable by eliminating mechanical components subject t |
| 6754066 |
UPS cabinet and method of assembly |
June 22, 2004 |
| A cabinet for an uninterrupted power source (UPS) is disclosed. The cabinet has three portions that characterize the frame. A front portion contains capacitor assemblies, power DC Link, power electronic components, and a control panel. The control panel and power DC Link are situated for |
| 6730884 |
Protective circuit for electrical heating element |
May 4, 2004 |
| The present invention provides an electrical circuit that measures the ground current due to insulation leakage in electrical heating elements. The circuit uses a CT to measure the current being supplied to at least one of a plurality of electrical heating elements. Using a comparator |
| 6705625 |
Caster arrangement for use on access floors |
March 16, 2004 |
| A caster arrangement for cabinets used on access or raised floors of a computer room or the like. The caster arrangement allows for a small, heavy cabinet to be situated on the panels of the access floor without applying concentrated or ultimate loads on the panels that may exceed the |
| 6700351 |
Modular uninterruptible power supply battery management |
March 2, 2004 |
| A modular uninterruptible power supply is disclosed, which provides complete redundancy for all components required for UPS operation. Novel aspects of the invention include design of the modules and their interconnection and interoperability, as well as improved operation techniques |
| 6684457 |
Adjustable and reversible hinge assembly |
February 3, 2004 |
| A recessed hinge is disclosed that allows a door to open to an angle greater than 90 degrees. The hinge has a hinge pin with two free ends so that the hinge is also fully reversible, for use either on the right hand or left of an enclosure. The hinge also provides for simplified horizont |
| 6644384 |
Modular low profile cooling system |
November 11, 2003 |
| A method and system for high density modular cooling system is disclosed. Cooling coils and fans are interleaved so as to cover all usable space with the enclosed area behind the interleaved cooling coils and fans acting as a plenum. A cooling fluid is circulated through the cooling |
| 6644066 |
Method and apparatus to relieve liquid pressure from receiver to condenser when the receiver has |
November 11, 2003 |
| A method and apparatus is disclosed to relieve liquid pressure from a receiver to a condenser in a cooling system that operates under a variety of ambient temperature conditions. To relieve excess pressure in the receiver and to prevent the venting of refrigerant through a relief valve, |
| 6564858 |
Overhead cooling system with selectively positioned paths of airflow |
May 20, 2003 |
| A method and system are disclosed for cooling a heat generating object. A coolant is passed through a heat exchanger so that heated air passing through the heat exchanger is cooled. A fan unit is selectively positioned adjacent to a first side of the heat exchanger. When activated, the f |
| 6564571 |
High availability energy |
May 20, 2003 |
| A rack system for mounting electronic devices such as computers or telecommunication devices is disclosed. The rack includes an integrated liquid heat exchange cooling system for dissipating the heat generated by the electronic devices. The rack also includes integrated alternating c |
| 6563048 |
Ancillary cabinet system for an uninterruptible power supply |
May 13, 2003 |
| A system of ancillary cabinet for use with an uninterruptible power source (UPS) is disclosed. The ancillary cabinets have modular and reversible features that facilitate the installation of an uninterruptible power supply. The frames for the ancillary cabinets use a galvanized riveted |
| 6557624 |
Configurable system and method for cooling a room |
May 6, 2003 |
| A method and system are disclosed for cooling a room having one or more heat generating objects. A number of heat exchangers are disposed adjacent a floor or ceiling and extends substantially entirely or partially between the walls of the room. A fan unit is disposed adjacent the heat ex |
| 6490882 |
Method and apparatus for maintaining compressor discharge vapor volume for starting with condens |
December 10, 2002 |
| A method of preventing refrigerant condensation in a discharge volume or discharge line of a compressor is disclosed. The method involves the application of one or more heaters to a cooling circuit to prevent condensed refrigerant from migrating into the discharge line and/or dischar |
| 6466465 |
Digital control of voltage harmonic distortion and overload current protection for inverters |
October 15, 2002 |
| A method reducing transient overshoot of an output signal of an uninterruptable power supply, the uniterruptable power supply including: (a) an inverter having at least one power switch; (b) a digital controller that generates a pulse width modulated (PWM) signal for controlling the |
| 6100605 |
Neutral bonding system for uninteruptible power supply |
August 8, 2000 |
| A UPS device of universal application provides a pair of backfeed relays, which are mandated by certain countries outside the United States, controlled by an overall control circuit to perform in conjunction with the connection of neutral to system ground to avoid damage to a load, UPS |
| 5709100 |
Air conditioning for communications stations |
January 20, 1998 |
| A redundant, dual circuit air conditioning apparatus is provided for communications enclosures which is wall mounted thereon. A conditioned air housing is provided having a blower chamber which contains two air circulation blowers thrusting air into the enclosure and having freely pi |
| 5467609 |
Modular floor sub-structure for the operational support of computer systems |
November 21, 1995 |
| A modular floor sub-structure is provided wherein discrete floor modules having bottom surfaces and sides extending upwardly to support paired floor tile are interconnected to sit upon a floor surface and, in turn, support rack-mounted computer components. Select ones of the floor module |
| 5345779 |
Modular floor sub-structure for the operational support of computer systems |
September 13, 1994 |
| A modular floor sub-structure is provided wherein discrete floor modules having bottom surfaces and sides extending upwardly to support paired floor tile are interconnected to sit upon a floor surface and, in turn, support rack-mounted computer components. Select ones of the floor module |
| 5177972 |
Energy efficient air conditioning system utilizing a variable speed compressor and integrally-re |
January 12, 1993 |
| Disclosed is an improved air conditioning system of the type having a refrigerant which sequentially flows through compressor means, condenser means in heat exchange relationship with outdoor air, expansion means, and evaporator means for the direct or indirect cooling of air in a confin |
| 4782241 |
Uninterruptible power supply apparatus and power path transfer method |
November 1, 1988 |
| An uninterruptible power supply capability is provided for line regulators of a variety synthesizing a desired waveshape for presentation to a critical load. A static switch is active intermediate the input of the line regulator and the line power supply to provide a power path during |
| 4719550 |
Uninterruptible power supply with energy conversion and enhancement |
January 12, 1988 |
| A power supply control is disclosed which performs in conjunction with an a.c. source as may be provided by a utility line input. This line input is directed through a converter which reflects or mirrors an a.c. signal into the line input mimicing it in all aspects except that of amplitu |
| 4709318 |
UPS apparatus with control protocols |
November 24, 1987 |
| Power treatment apparatus of a UPS variety which includes a central node to which is coupled an a.c.-to-d.c. converter or conversion device, the a.c. side of which is connectable with line power and the d.c. side of which is coupled with the node. The node additionally is coupled to an o |
| 4684875 |
Power conditioning system and apparatus |
August 4, 1987 |
| Power conditioning apparatus exhibiting enhanced stability with respect to lagging phase angle conditions incurred in conjunction with load derived transients. The apparatus employs a synthesizer network structured having a regulator which is fashioned as a non-linear saturable transform |
| 4606198 |
Parallel expansion valve system for energy efficient air conditioning system |
August 19, 1986 |
| Disclosed are novel expansion means useful in an air conditioning system of the type having a refrigerant which sequentially flows through variable speed compressor means responsive to varying outdoor air temperature for attenuating refrigerant mass flow corresponding to lower outdoor ai |
| 4575668 |
Controller for providing PWM drive to an A.C. motor |
March 11, 1986 |
| A controller for providing PWM drive to an inductive load incorporating an input rectifier bridge (24) the output of which is filtered by capacitors (106, 108) and which includes input impedance (116, 118) for limiting start-up current surges. A by-pass network (124) controlled from a hi |
| 4544877 |
Power conditioning system and apparatus |
October 1, 1985 |
| Power conditioning apparatus particularly suited for computer facilities and including non-linear input chokes connectable with line power. These chokes are structured having a center leg configured to define a varying gap having a narrowest flux transfer region located centrally with re |
| 4305033 |
Polyphase ferroresonant voltage stabilizer having input chokes with non-linear impedance charact |
December 8, 1981 |
| Power conditioning apparatus particularly suited for computer facilities and including non-linear input chokes connectible with line power. The outputs of the input chokes are serially, magnetically coupled through primary windings to pulse saturable reactors of a synthesizing network |
| 4271678 |
Liquid refrigeration system for an enclosure temperature controlled outdoor cooling or pre-condi |
June 9, 1981 |
| An economical energy-saving air-conditioning system for cooling air in an enclosure requiring year-around cooling. An outdoor heat exchanger is operative in a recirculating liquid closed-loop cooling system. A temperature controlled actuator provides continuous free cooling when the |
| 4270362 |
Control system for an air conditioning system having supplementary, ambient derived cooling |
June 2, 1981 |
| Temperature and humidity electrical/electronic control circuits and apparatus to maintain a room at a constant temperature and humidity. The control system is adapted to an environmental condition controller for year-around cooling utilizing a liquid recirculating to an outside coil |
| 4126857 |
Probe-type liquid detector |
November 21, 1978 |
| Apparatus and system for monitoring sites for the presence of moisture or the collection of conductive liquids. Two housings are utilized with the apparatus to facilitate user convenience. A first of these housings, mounted at a location selected for easy access by the user, retains |
| 3953100 |
Infrared lamp holder |
April 27, 1976 |
| A holder for infrared heat source lamps and particularly a holder comprising a block structure having entry sections on both sides separated by a wall. The separating walls provide an entry section oversized and otherwise notched to dissipate heat. A port in each entry section leads to |
