Automatic Substitution Of Power Supply Or Light Source Patents (Class 362/20)
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Publication number: 20040100787Abstract: Systems, devices and methods for lighting include a lighting fixture having a first electrical system including a first set of electrical components operable by a first power source located remotely from the lighting fixture. A first light-emitting device is mountable to the housing and energizable through the first electrical system during periods of predetermined levels of light. A second electrical system including a second set of electrical components is operable by a second power source located locally with respect to the lighting fixture. A second light-emitting device is mountable to the housing and automatically energized through the second electrical system during predetermined levels of power from the alternating current power source. And, the first set of electrical components are distinct from and independent of the second set of electrical components. Methods of lighting and reducing energy costs through incorporating the lighting device are also disclosed.Type: ApplicationFiled: November 26, 2002Publication date: May 27, 2004Inventor: William F. Harris
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Patent number: 6715895Abstract: A luminaire body for a surgical operation light with an annular reflector has at least two electric light bulbs, a first bulb of which with its socket is associated in normal operation with a given centered position (with respect to the reflector) in the stationary part of the luminaire body, while a second bulb with its socket is situated in a reserve position away from the centered position; in case of a failure of the first bulb the positions of the sockets of both bulbs are changed by an electromagnetically operated turning service such that the second bulb can be turned to the original centered position of the first bulb for reserve-bulb operation after the first bulb has been withdrawn from the centered position.Type: GrantFiled: November 14, 2002Date of Patent: April 6, 2004Assignee: Heraeus Med GmbHInventors: Soren Wasow, Uwe Gampe, Klaus Buss
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Patent number: 6672738Abstract: The invention relates to a decorative ornament. The ornament includes a circuit board shaped in an aesthetically desirable manner to provide a background for the decorative ornament, a plurality of light sources, an integrated circuit and circuit leads being mounted on the circuit board. The circuit leads electrically couple the light sources with the integrated circuit to control the light pattern displayed by the decorative ornament. The circuit leads, light sources and circuit boards working together to create an aesthetically pleasing ornament.Type: GrantFiled: November 22, 2000Date of Patent: January 6, 2004Inventors: James M. Lewis, Elizabeth B. Lewis
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Patent number: 6663248Abstract: A driving circuit for LED lamps includes a DC power unit, a control unit connected to a bank of LEDs, and a backup power unit. The DC power unit outputs DC power to the control unit, the bank of LEDs, and the backup power unit. When DC power from the DC power unit is interrupted, the backup power unit outputs DC power to the bank of LEDs. The driving circuit may be incorporated into various lamp types, including wall lamps, indicator lamps, and emergency lamps.Type: GrantFiled: April 23, 2002Date of Patent: December 16, 2003Inventor: Chin-Mu Hsieh
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Publication number: 20030227765Abstract: A lamp lighting device is arranged such that the optimum specifications of discharge lamps that may be mounted are integrated or entered in advance into a control circuit and the type of a discharge lamp mounted is manually or automatically presented to a microcomputer. This allows any of the discharge lamps to be driven under the optimum conditions at all times. As a result, lamp makers and lamp power can be selected relatively freely, making it possible to select discharge lamps by purpose. Furthermore, the cost, color, outgoing luminous flux and noise caused by a cooling fan can be set to user's better likings.Type: ApplicationFiled: April 25, 2003Publication date: December 11, 2003Applicant: KABUSHIKI KAISHA TOSHIBAInventor: Yoshio Kubo
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Patent number: 6637916Abstract: The invention relates to a lamp for vehicles which is integrated in the surface of a vehicle part and which is removable. The lamp is switched on and off via a radio signal and/or a light beam of an infrared diode received by a sensor. The fluorescent plastic material of the lamp body, the solar cell, the sensor, the storage elements and the LED (OLED and/or PLED) form a unit of the lamp and this unit can be mounted and removed a such.Type: GrantFiled: October 5, 2001Date of Patent: October 28, 2003Inventor: Hermann-Frank Müllner
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Publication number: 20030165053Abstract: A luminaire body for a surgical operation light with an annular reflector has at least two electric light bulbs (3, 4), a first bulb (3) of which with its socket is associated in normal operation with a given centered position (with respect to the reflector) in the stationary part of the luminaire body, while a second bulb (4) with its socket is situated in a reserve position away from the centered position; in case of a failure of the first bulb (3) the positions of the sockets (1, 5) of both bulbs (3, 4) are changed by an electromagnetically operated turning device (16) such that the second bulb (4) can be turned to the original centered position of the first bulb for reserve-bulb operation after the first bulb (3) has been withdrawn from the centered position.Type: ApplicationFiled: November 14, 2002Publication date: September 4, 2003Inventors: Soren Wasow, Uwe Gampe, Klaus Buss
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Patent number: 6612729Abstract: An illumination device including a light guide 22 surrounded by a protective sleeve 24. The light guide 22 is hollow and includes a cylindrical wall 26 having a structured outer surface 28 and a smooth inner surface 30. Release structures are provided to reflect or refract light through the cylindrical wall 26 of the light guide 22.Type: GrantFiled: March 16, 2000Date of Patent: September 2, 2003Assignee: 3M Innovative Properties CompanyInventor: Joseph Andrew Hoffman
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Patent number: 6609804Abstract: A low voltage ceiling or wall mounted light fixture for residential and commercial lighting includes a plurality of high lumen white LED lights incorporated within the fixtures, a light color diffusion panel and a household current to low voltage DC converter within the fixture to convert the AC current to low voltage DC current, reducing the power required for illumination without replacement of the LED lights.Type: GrantFiled: October 15, 2001Date of Patent: August 26, 2003Inventors: Steven T. Nolan, Donald R. Hebert
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Patent number: 6580361Abstract: An integrated outdoor lighting and sound systems comprising a plurality of outdoor landscaping lighting units, a wiring cable interconnecting the plurality of outdoor landscaping lighting units, a source of low-voltage energy connected to said wiring cable and a plurality of speaker assemblies, each of the speaker assemblies including a speaker, an audio amplifier for amplifying sound to the speaker, the audio amplifier further including leads connected to the wiring cable for supplying electrical power to the audio amplifier, and a battery storage electrically connected to the wiring cable for storing electrical energy and for supplying the electrical energy to the audio amplifier.Type: GrantFiled: December 21, 2000Date of Patent: June 17, 2003Inventor: Charles E. Bucher
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Patent number: 6577136Abstract: A modular self-diagnostic assembly for controlling diagnostic, charge and transfer functions necessary to operation of fluorescent emergency lighting packs also referred to as inverters or fluorescent battery packs used particularly in emergency lighting systems such as are configured for operation with fluorescent lighting fixtures and the like. Self-test/self-diagnostic circuitry contained within a module separate from an emergency lighting pack functions as an add-on accessory to existing emergency lighting packs without need for modification of structure or circuitry of the lighting pack. The self-diagnostic module of the invention connects electrically and mechanically to the lighting pack through appropriate leads terminated by an appropriate header and further connects mechanically and electrically to a test switch module through appropriate leads terminated by an appropriate header.Type: GrantFiled: April 23, 2002Date of Patent: June 10, 2003Assignee: Acuity Brands, Inc.Inventor: Antonio Marques
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Patent number: 6572234Abstract: To achieve great security against failure in lamps for medical applications, especially lamps for surgery, two electric bulbs are placed each in a concave mirror of ellipsoidal shape as part of a reflector, the two concave mirrors having focal points which are aligned with one another along an optical axis. The concave mirror provided to serve as the main lamp is configured as a ring reflector, while the concave mirror designed to operate as a reserve lamp closes off the reflector on the side facing away from the direction of emergence of the light. Thus, in the event of a change from main lamp operation to reserve lamp operation, the illuminated field is maintained at least approximately in its size and the location does not change (X and Y directions).Type: GrantFiled: October 3, 2000Date of Patent: June 3, 2003Assignee: Heraeus Med GmbHInventors: Stefan Maier, Sören Wasow
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Publication number: 20030072145Abstract: The invention is a low voltage ceiling or wall mounted light fixture for residential and commercial lighting, having included a plurality of high lumen white LED lights incorporated within the fixtures, a light color diffusion panel and a household current to low voltage DC converter within the fixture to convert the AC current to low voltage DC current, saving on the cost of power required to provide illumination for the resident or commercial application and virtually eliminating the need to replace incandescent or fluorescent bulbs, the LED lights having an average duration of over 150,000 hours.Type: ApplicationFiled: October 15, 2001Publication date: April 17, 2003Inventors: Steven T. Nolan, Donald R. Hebert
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Publication number: 20030048626Abstract: A lighting system contains at least one controllable first light (NL), which is connected to a first current supply (L, N), and at least one controllable emergency current light (SL), which is connected to a further emergency current supply (P, N), separate from the first current supply (L, N). All lights have respective control devices associated therewith, all control devices being connected to a common bus (D1, D2). A monitoring device (5) issues a monitoring signal corresponding to the condition of the first current supply (L, N) onto the bus (D1, D2), which monitoring signal is evaluated at least by the control device of the emergency current light (SL) for the recognition of a disruption and for activation of an emergency current operation.Type: ApplicationFiled: August 13, 2002Publication date: March 13, 2003Applicant: ZUMTOBEL STAFF GMBHInventors: Gunther Johler, Siegfried Luger, Bernhard Klocker
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Patent number: 6489729Abstract: An auxiliary lighting system for a high-intensity discharge lamp. In one embodiment, the auxiliary lighting system has an auxiliary light source, an HID lamp status circuit having an input for connection to a status signal representative of the operational state of a high-intensity discharge lamp wherein the HID lamp status circuit determines whether the status signal meets predetermined signal criteria, a switch circuit having a first state that effects application of a voltage source to the auxiliary light source, and a second state that isolates the voltage source from the auxiliary light source, and a control circuit responsive to the HID lamp status circuit for controlling the switch circuit. The control circuit has a first state when the HID lamp status circuit determines that the status signal meets the predetermined signal criteria and a second state when the HID lamp status circuit determines that the status signal does not meet the predetermined signal criteria.Type: GrantFiled: June 11, 2001Date of Patent: December 3, 2002Assignee: Koninklijke Philips Electronics N.V.Inventors: Robert Erhardt, Ching-Yao Hung, Raymond Kulka, Seymour Perkins, III, Oscar Deurloo
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Patent number: 6481870Abstract: An emergency lighting fixture includes a frame employing an indicator on the front of the frame, an illumination lamp installed in the inside of the frame, a laser projector exposed to the front of the frame from the inside of the frame, an angle adjusting unit for adjusting a projecting angle of the laser projector, and an emergency power supplying battery, installed in the inside of the frame, for impressing a power supply into the illuminating lamp and the laser projector in response to a signal of a fire sensor in the event of fire.Type: GrantFiled: February 1, 2001Date of Patent: November 19, 2002Inventor: Jae-Sul Son
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Patent number: 6476559Abstract: A ceremonial illuminary including a voltage supply mechanism, a switching mechanism that is electrically connected to the voltage supply mechanism, a first lamp electrically connected to the switching mechanism, a second lamp electrically connected to the switching mechanism wherein the switching mechanism provides voltage to the first lamp to illuminate the first lamp and then switches to provide voltage to the second lamp instead of the first lamp when the first lamp burns-out and no longer illuminates. The first lamp and the second lamp are secured with an enclosure.Type: GrantFiled: January 31, 2001Date of Patent: November 5, 2002Assignee: Good Shepherd Lutheran ChurchInventor: Gary L. Rapp
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Patent number: 6417624Abstract: A lighting system provides an auxiliary lighting circuit for turning on an auxiliary light source in place of the discharge lamp if the abnormality in the lighting circuit is detected.Type: GrantFiled: August 29, 2000Date of Patent: July 9, 2002Assignee: Koito Manufacturing Co., Ltd.Inventors: Masayasu Ito, Hitoshi Takeda, Soichi Yagi, Shuji Matsuura, Akihiro Mochizuki, Hiroki Ishibashi, Tomoyuki Ichikawa
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Patent number: 6371621Abstract: An improved flush-mount emergency light fixture (10) is provided having a housing (12) adapted for placement in a wall or ceiling aperture (20), an internal illumination assembly (16) and a selectively movable cover (14), in order to provide illumination during an emergency condition. The fixture (10) includes a servo-motor (74) and an operator (78) for controlled movement of the cover (14) between a closed position and a deployed illumination position. A floating hinge (54) couples the cover (14) to housing (12) and allows the cover to both pivot and translate relative to the housing (12) during cover movement.Type: GrantFiled: January 19, 2000Date of Patent: April 16, 2002Assignee: SPX CorporationInventor: Vincent Victor Le Bel
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Patent number: 6361189Abstract: An operating theater luminaire having at least two discharge lamps, which can be switched on and off, can be started and alternatively can be switched on by means of a starting device, and illuminate an operating area via optical means, in particular at least one reflector. A plurality of, in particular two discharge lamps, equipped with individual starting devices, of different powers are provided, as a result of which the intensity of illumination in the operating area can be varied when switching over from one discharge lamp to another.Type: GrantFiled: June 6, 2000Date of Patent: March 26, 2002Assignee: Gebrueder Berchtold GmbH & Co.Inventor: Manfred Scholz
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Publication number: 20010040798Abstract: A distributed emergency building lighting system senses the presence or absence of AC power at the input of a switch controlling lighting in a designated area or an input stimulus such as an alarm to provide low-level marking for visual delineation of the path of egress or lighting of a predetermined designated area by illuminating an EL panel in accordance with code requirements. Self-diagnostic testing verifies operational conditions of the battery and illumination circuit to ensure code compliance.Type: ApplicationFiled: May 10, 2001Publication date: November 15, 2001Applicant: E-LITE TECHNOLOGIES, INC.Inventors: Gustaf T. Appelberg, Joseph W. Fleming
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Patent number: 6286976Abstract: A vehicle interior lighting system for use in military vehicles to minimize infrared signatures under normal operating conditions. The system has a blackout reduced signature capability, emergency interior lighting capability and a removable portion with reduced thermal signature for use in evacuating a disabled vehicle.Type: GrantFiled: February 2, 2000Date of Patent: September 11, 2001Assignee: The United States of America as represented by the Secretary of the ArmyInventors: Kewal K. Chopra, John W. Monroe
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Patent number: 6280053Abstract: An electro-luminescent lighting arrangement includes at least one additional lighting element situated in a housing to provide a lighting device in which the lighting elements have different brightnesses and other lighting characteristics in order to perform different functions, such as providing a night light function as well as a flashlight, lantern, warning or indicator light, or lamp function.Type: GrantFiled: September 23, 1998Date of Patent: August 28, 2001Inventor: Tseng-Lu Chien
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Patent number: 6280042Abstract: An emergency lighting unit comprises a housing which contains the lighting unit circuitry. The housing includes a wall which defines at least one substantially circular opening therein. Extending partially through this opening is a substantially spherical lighting head containing a light source, such as a halogen lamp. The lighting head is rotatable by hand to any desired rotation to vary the field of illumination.Type: GrantFiled: June 10, 1999Date of Patent: August 28, 2001Assignee: Dual-Lite Inc.Inventors: Joseph Wegrzyn, Jeff Holmes, Milt Erickson
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Publication number: 20010014020Abstract: Disclosed is an emergency lighting fixture comprising: a frame employing an indicator on the front of the frame; an illumination lamp installed in the inside of the frame; a laser projector exposed to the front of the frame from the inside of the frame; and an emergency power supplying battery, installed in the inside of the frame, for impressing a power supply into the illuminating lamp and the laser projector in response to a signal of a fire sensor in the event of fire.Type: ApplicationFiled: February 1, 2001Publication date: August 16, 2001Inventor: Jae-Sul Son
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Patent number: 6164788Abstract: A drop down concealed emergency lighting unit includes a box-like housing for substantially flush mounting in a recess and a pivotally mounted door for closing the opening in the housing and upon which is mounted a lamp unit. A drive assembly moves the door between the open and closed positions and includes a DC motor on the housing with a drive gear which is operatively engageable with a driven gear on the door to move the door to the closed position. An electrical control circuit senses the absence of alternating current and effects disengagement of the gears to allow the door to move from the closed position to the open position, and senses the restoration of alternating current to effect reengagement of the gears to actuate the motor to move the door to the closed position.Type: GrantFiled: November 2, 1998Date of Patent: December 26, 2000Inventors: Thomas Gemmell, Abi Madadi
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Patent number: 6141234Abstract: A power supply for an emergency light includes a battery and battery charging circuit. The battery charging circuit is formed by two diodes and two resistors and possibly a capacitor.Type: GrantFiled: February 11, 1999Date of Patent: October 31, 2000Inventors: David W. Knoble, Khosrow Jamasbi
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Patent number: 6106126Abstract: An electronic layout of an electronic exit sign, that encompasses the entire electronic packaging and lighting inside the exit sign enclosure. The layout includes brackets that function both as a method for holding LEDs for illuminating the sign, and as enclosures for enclosing the electronics of a controller and a power unit. The LEDs are mounted to the brackets and held by nylon buttons. A battery pack for battery backup and a battery backup self-test switch is mounted to a releasable plate. This allows the battery backup feature to be an option and also allows for easy replacement of discharged batteries. The LEDs are spaced in such a way as to provide uniform lighting to both the exit sign and a chevron symbol. The LEDs are positioned so that the same unit can drive either a single or double face exit.Type: GrantFiled: October 6, 1998Date of Patent: August 22, 2000Inventor: Jerome Neustadt
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Patent number: 6082893Abstract: A testing device for emergency lighting units has a telescopic handle, a bracket at a first end of the handle, a magnet at the end of the bracket and a temperature sensor adjacent to the magnet. The magnet has sufficient strength to engage a surface of the lighting unit adjacent a test switch so as to cause actuation of the test switch. The magnet holds the test switch down for the duration of the test. The temperature sensor provides an indication of the ambient conditions adjacent the lighting unit which has an effect on battery life and which is used to determine the frequency of the testing of the unit.Type: GrantFiled: December 23, 1997Date of Patent: July 4, 2000Inventor: Lawrence M Kassa
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Patent number: 6045232Abstract: An apparatus for detecting failure of a power source and providing illumination of an area upon detection of the failure of the power source. The apparatus for providing emergency and night lighting includes a detection switch connected to the power source for detecting a voltage at terminals of the power source, an alternate power source and an emergency light connected between the detection switch and the alternate power source. The detection switch is operable between a first open position disconnecting the emergency light from the alternate power source upon detection of a voltage at the terminals of the power source and a second closed position connecting the emergency light to the alternate power source and causing the emergency light to illuminate upon detection of an interruption of the voltage at the terminals of the power source. A second light is connected directly to the power source for providing illumination to an area when a voltage is detected at the terminals of the power source.Type: GrantFiled: February 16, 1998Date of Patent: April 4, 2000Inventor: Clifford Thoren Buckmaster
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Patent number: 6019477Abstract: An emergency lighting unit comprises a housing which contains the lighting unit circuitry. The housing includes a wall which defines at least one substantially circular opening therein. Extending partially through this opening is a substantially spherical lighting head containing a light source, such as a halogen lamp. The lighting head is rotatable by hand to any desired rotation to vary the field of illumination.Type: GrantFiled: July 3, 1997Date of Patent: February 1, 2000Assignee: Dual-Lite Inc.Inventors: Joseph Wegrzyn, Jeff Holmes, Milt Erickson
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Patent number: 6010228Abstract: A housing for a wireless emergency safety light which is mechanically connectable to a conventional light switch for a light fixture or a plug receptacle for providing power to a load. The housing replaces a conventional switch plate having at least one opening for receiving the switch actuator of the light switch or for receiving the electrical plug receptacle. The emergency safety light includes at least one compartment in the housing for receiving batteries; a second compartment in the housing for receiving an emergency light source adapted to be connected to the batteries; and an antenna for sensing the loss of electrical power to the light switch and, in response thereto, for actuating the emergency light source.Type: GrantFiled: November 13, 1997Date of Patent: January 4, 2000Assignee: Stephen E. BlackmanInventors: Stephen E. Blackman, Thomas Wolfgang
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Patent number: 6000807Abstract: A wall mounted cover plate conceals an electrical circuit capable of sensing the field provided by a covered switch or electrical socket circuit. When power is lost at the wall circuit the electrical circuit senses the loss of power and activates one or more LEDs to provide emergency illumination. The electrical circuit is self contained and does not require stand-by energy so that the batteries are long lasting.Type: GrantFiled: February 27, 1998Date of Patent: December 14, 1999Inventor: Gregory B. Moreland
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Patent number: 5988825Abstract: A housing frame preferably formable as a single integral unit and being capable of use as a primary structural portion of a housing suitable for multiple exit sign configurations, the several exit sign configurations of the invention being either intended for emergency or non-emergency operation and further being intended for use with different light sources and power sources. The housing frame of the invention includes structural features which allow mounting of any one of a variety of light sources and mounting of those components necessary for operation of the light sources within a single housing, which housing is of a size reduced in volume relative to most presently available signs. Structural features of the frame also include in at least certain embodiments a printed circuit board comprising a platform and having essentially all circuit components including light emitting diode light sources and a battery for operation of the light sources in an emergency mode mounted on said printed circuit board.Type: GrantFiled: May 2, 1997Date of Patent: November 23, 1999Assignee: NSI Enterprises, Inc.Inventors: Andrew Edward Masters, James Michael Lay
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Patent number: 5980053Abstract: An illuminating arrangement (1) includes a main lamp (7) and a reserve lamp (9) mounted on a lamp carrier (5). The lamp carrier (5) can be moved between a base position wherein the main lamp (7) provides illumination and a reserve position wherein the reserve lamp (9) provides illumination. When there is a failure of the main lamp (7), a position change mechanism (15, 19, 21) automatically pivots the lamp carrier (5) out of its base position into the reserve position.Type: GrantFiled: March 19, 1998Date of Patent: November 9, 1999Assignee: Carl-Zeiss-StiftungInventors: Norbert Hauser, Claus-Peter Bruckner, Heiko Reinke
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Patent number: 5966069Abstract: A system for testing the electrical integrity of an illuminated exit sign alternately powered by a battery, rechargeable from a source of alternating current power. The system includes an alarm for indicating an electrical failure, precluding the illumination of the exit sign. A circuit tests the presence of battery electrical power for illuminating the exit sign. In addition, the circuitry periodically tests for the provision of adequate battery power to achieve the same function. Moreover, the system periodically tests and retests for adequate recharging of the battery during a preselected period of time and includes an alarm for indicating failure of the recharging system.Type: GrantFiled: March 19, 1998Date of Patent: October 12, 1999Assignee: Prescolite-Moldcast Lighting CompanyInventors: Greg Zmurk, Steve Buckser
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Patent number: 5911499Abstract: An emergency lighting fixture with backup battery power for illuminating aimable lamps or a plurality of lamps mounted in a single housing in response to loss of power. In the preferred embodiment, the lighting fixture has three independently adjustable lamps mounted within a single housing. The lamps are adjustable about vertical and horizontal axes for maximum aiming capabilities. The housing is preferably an explosion proof housing with a glass globe for mounting in hazardous locations or areas. The glass globe allows the lamps to be aimed through 360.degree. so that light transmitted by the lamps can be aimed to a specific area adjacent the lighting fixture. The lighting fixture also preferably has its backup batteries mounted within the housing along with a charger for maintaining the batteries at full charge.Type: GrantFiled: September 21, 1995Date of Patent: June 15, 1999Assignee: Hubbell IncorporatedInventors: Stephen M. Stafford, Michael A. Kurtz
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Patent number: 5910689Abstract: A standby ballast for a fluorescent lamp in a lighting circuit powered normally by a main AC power supply, and in the event of main power supply failure, powered by an auxiliary standby generator, the standby ballast operable to provide AC power to the lamp for the interim between failure of main AC power supply and the supply of stabilized auxiliary AC power from the standby generator as it has started and reached normal operating condition.Type: GrantFiled: April 28, 1997Date of Patent: June 8, 1999Assignee: The Bodine Company, Inc.Inventors: Alexander L. Ertz, III, Thomas A. Mascari, Jr., Reginald J. Rodriguez
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Patent number: 5897194Abstract: An apparatus for remotely verifying the potency of a backup power source for an information display apparatus using an electrically-actuated switch coupled between a primary power source interface and the switch. In one embodiment, a signal receiving device receives a transmitted signal, activates a switch, interrupts the supply of power from a primary power source, and requires the sign to be lighted by the backup power supply. The apparatus may include a circuit to transform alternating current line voltage into a reduced direct current voltage for the lighting source; a backup power supply recharging circuit that is integrated so as to allow the backup power supply to be recharged using power from the primary source; a power failure detector switching circuit that allows the light source to receive power from the backup power supply if the power from the primary power source were interrupted; and a control circuit power source.Type: GrantFiled: May 14, 1996Date of Patent: April 27, 1999Inventor: Byung Il Ham
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Patent number: 5851061Abstract: An emergency lighting fixture which is recessed within a wall or ceiling is disclosed. The emergency lighting fixture is contained within a housing which is installed into a cavity within the wall or ceiling. During the normal operation of the primary lighting system the emergency lighting fixture remains concealed by a panel which is flush with the wall or ceiling. The panel is attached to the housing by hinges and has a mirrored rear surface. Located within the housing is a high intensity halogen lamp and a solenoid piston assembly. Upon the failure of the primary lighting system the solenoid actuates the arm of the piston opening the panel which activates the halogen lamp. The halogen lamp produces a high intensity beam of light which is reflected by the mirrored rear surface of the panel illuminating the desired area.Type: GrantFiled: March 5, 1997Date of Patent: December 22, 1998Assignee: William HegartyInventor: William Hegarty
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Patent number: 5833350Abstract: A wall switch cover plate conceals an electrical circuit capable of sensing the field provided by the covered switch circuit. When power is lost at the switch circuit the electrical circuit senses the loss of power and activates one or more LEDs to provide emergency illumination. The electrical circuit is self contained and does not require stand-by energy so that the batteries are long lasting.Type: GrantFiled: April 25, 1997Date of Patent: November 10, 1998Assignee: Electro Static Solutions, LLCInventor: Gregory B. Moreland
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Patent number: 5833343Abstract: The present invention is a light-source switching and driving unit where an accurate stop operation and a strong holding force are obtained and which is capable of reducing a noise and preventing an impact to light-source lamps. In this unit, a plurality of light-source lamps for being switched and used are disposed. When a burnout sensor detects the burnout of a lamp being currently used, a spare light-source lamp is moved to a predetermined position by a stepping motor. In switching one lamp to another lamp, a pulse generating circuit generates a drive pulse which gradually increases when the stepping motor is started and a drive pulse which gradually decreases when the stepping motor is stopped. The stepping motor is driven by these drive pulses. With this, in switching one lamp to another lamp, a slow operation can be realized when the motor is started and when the motor is stopped.Type: GrantFiled: June 18, 1996Date of Patent: November 10, 1998Assignee: Fuji Photo Optical Co., Ltd.Inventors: Etuo Nakano, Suwao Satoh
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Patent number: 5797673Abstract: An emergency lighting fixture combining the functions of an illuminated sign such as an exit sign and an emergency lighting unit integrated into one housing onto which one or more emergency light can be mounted at predetermined locations of the housing, the combined emergency lighting structure providing both exit location information and ambient emergency lighting in a single cooperatively operating device. The present device replaces bulky prior combinations of discrete exit signs and emergency lighting units which have been assembled together essentially as individual devices without integration into a single housing or without substantial integration of operational features, the housing of the present device being only slightly larger than standard exit signage.Type: GrantFiled: November 22, 1995Date of Patent: August 25, 1998Assignee: NSI Enterprises, Inc.Inventors: Mark Campbell Logan, Andrew Edward Masters, Edwin Lewis Hull
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Patent number: 5768814Abstract: In an exit sign, an insertable battery pack module is designed to fit in the lower portion of the exit sign housing. This battery pack module incorporates a pair of lamps as well as a battery, battery charger and transfer circuitry. The module incorporates a pair of reflective surfaces so that light from lamp filaments tangentially hit at least a portion of the exit sign stenciled area along the bottom portion of the letters forming the word EXIT. If an exit sign is only to have utility AC power, then the module need not be installed within the exit sign. In this configuration, the bottom portion of the exit sign can incorporate a slidable panel which is removed if the battery pack module is later inserted. The battery pack module incorporates the indicator light and test button which then would show through the area where the panel formerly resided.Type: GrantFiled: July 26, 1993Date of Patent: June 23, 1998Assignee: GSEG LLCInventors: Edward P. Kozek, Robert M. Johnstone
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Patent number: 5746492Abstract: An emergency light includes a housing having a lamp and having also a battery for energizing the lamp. A smoke-proof mask is disposed in the housing and includes a filter for filtering smoke and means for allowing user the to find the mask easily and quickly. A buzzer may be coupled to the battery for indicating to a blind user where to find the smoke-proof mask easily and quickly. The battery is a rechargeable battery and is coupled to a sensing/switching circuit which may switch the battery to energize the lamp when the AC power supply is not supplied to the sensing/switching circuit.Type: GrantFiled: January 17, 1997Date of Patent: May 5, 1998Inventor: Tzu Hsiung Tai
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Patent number: 5734229Abstract: A back-up power system for a portable table lamp which accommodates a standard replaceable compact fluorescent bulb that is illuminated from an AC main power source when AC house current is available and is illuminated by a DC to DC converter when AC house current is unavailable, the converter being powered by replaceable low voltage battery located in the base of the lamp and charged by the AC source, with the loss of AC house current being sensed to cause the disconnection of the AC house current source and connection to the low voltage replaceable battery.Type: GrantFiled: November 29, 1995Date of Patent: March 31, 1998Inventors: Joseph P. Bavaro, Joseph S. Russo
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Patent number: 5713655Abstract: The present invention provides a housing for an emergency light source which is electrically connectable to a conventional light switch. The housing replaces a conventional switch plate and has at least one opening for receiving the switch actuator of the light switch. The replacement housing includes wires for electrical connection to the light switch and is divided into upper and lower housing sections, wherein the upper section includes a battery compartment, a printed circuit board compartment, and an opening to receive the switch actuator. The lower housing section includes a compartment for receiving a compact fluorescent lamp, reflectors, and a diffuser cover.Type: GrantFiled: December 4, 1995Date of Patent: February 3, 1998Inventor: Stephen E. Blackman
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Patent number: 5676452Abstract: An operating lamp has at least one main bulb 11 arranged at a desired position 13 and a replacement bulb 12 arranged at a waiting position 14 located close the desired position 13. The main bulb 11 and the replacement bulb 12 are displaceably mounted and controlled in such a way that when the main bulb 11 burns out it is moved away from the desired position 13 and the replacement bulb 12 is moved from the waiting position 14 to the desired position 13 and is held there. The main bulb 11 and the replacement bulb 12 are mounted on holders 15, 16 which are moveable independently of one another.Type: GrantFiled: February 28, 1996Date of Patent: October 14, 1997Assignee: Gebr. Berchtold GmbH & Co.Inventor: Manfred Scholz
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Patent number: 5633564Abstract: A modular fail-safe uninterruptible lighting system in which lights are identified singly and/or in clusters to form separately controllable entities. Each entity is provided with a modular receiver that is individually controllable to any of six selected states; and one or more modular switched logic controllers is provided to produce signals individually representing the six states. These signals are conducted from the switched logic controllers to the receivers at relatively low control voltages so as to cause the entities to function according to selected states when an outage occurs on the normal lighting system power source.Type: GrantFiled: June 1, 1995Date of Patent: May 27, 1997Inventors: M. Larry Edwards, Allan A. Nostwick, Roland O. Hildebrand
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Patent number: RE36696Abstract: A lighting fixture for mounting under a cabinet or under a counter or on a wall area, including a housing having a device for mounting the housing under a cabinet or under a counter or on a wall area; a fluorescent light fixture mounted in the housing; a night light mounted in the housing; and a battery-operated detachable flashlight assembly removably mounted in the housing. The flashlight assembly includes a battery recharger, an electrical device, such as a male plug, for interconnecting the battery recharger and a power source, and an electrical device for sensing a power loss. The light fixture also includes a flashlight electrical connection in the housing, such as a plug receptacle, for connection to the male plug for supplying power from the power source to the detachable flashlight assembly; and one or more diffusers for the housing.Type: GrantFiled: August 8, 1997Date of Patent: May 16, 2000Inventor: Stephen E. Blackman