Exit Patents (Class 40/570)
  • Patent number: 10083637
    Abstract: A cover can comprise a photoluminescent outer surface, an inner surface configured to be affixed to an indicator sign, and one or more void areas passing through the inner and outer surfaces arranged in a pattern, wherein the pattern defines a negative image in contrast to the photoluminescent outer surface, wherein the negative image corresponds to a graphic on the indicator sign such that the first graphic is visible through the void areas when the cover is affixed to the indicator sign.
    Type: Grant
    Filed: January 10, 2018
    Date of Patent: September 25, 2018
    Inventor: William Gardner
  • Patent number: 10049604
    Abstract: A concealed light fixture sign includes a flange having stencil openings formed therein that define a message. A container extends from a rear surface of the flange and provides light through the stencil openings. The container is configured to be installed completely within a recess behind a mounting surface with the flange positioned substantially flush with the mounting surface. Translucent inserts positioned within the stencil openings are removable to provide access to an interior of the container after installation of the light fixture sign.
    Type: Grant
    Filed: November 21, 2016
    Date of Patent: August 14, 2018
    Inventor: Thomas W. Gow
  • Patent number: 9931078
    Abstract: A sensor includes a sensor pad configured to be disposed on a portion of a patient's body. A light sheet is disposed on the sensor pad and has a first substrate and a second substrate spaced from one another. The light sheet further includes a light source configured to emit near-infrared light and a light detector configured to detect near-infrared light. The light source and the light detector are disposed between the substrates. The sensor pad is configured to allow light generated by the light source to travel through the portion of the patient's body to the light detector. The light received by the light detector is indicative of oxygen saturation of the portion of the patient's body through which the light travelled.
    Type: Grant
    Filed: July 8, 2010
    Date of Patent: April 3, 2018
    Assignee: COVIDIEN LP
    Inventors: Oleg Gonopolskiy, Arik Anderson
  • Patent number: 9453361
    Abstract: A luminous multiple glazing unit including: first and second flat glass elements; light-emitting diodes located in an internal space; a reflector including a part fixed to the glazing unit in the internal space; and a first luminous zone associated with the first glass element. In a first configuration, the reflector has a central reflective area for reflecting at least 30% of total flux emitted by the diodes in the group onto a first mechanism scattering light, or, in a second configuration, the reflector forms a beam splitter and has a double-image central reflective area of a first central area for reflecting first central rays onto a first mechanism scattering light and a second central area for reflecting second central rays onto a second scattering mechanism, the reflector reflecting at least 30% of total flux emitted by the diodes in the group.
    Type: Grant
    Filed: January 24, 2011
    Date of Patent: September 27, 2016
    Assignee: SAINT-GOBAIN GLASS FRANCE
    Inventors: Aude Montgermont, Jingwei Zhang, David Delhorme
  • Patent number: 9175833
    Abstract: A graphics display module that includes a frame with a front portion and a rear portion that cooperate to secure a lighted panel having a front surface and a rear surface therebetween. The front portion defines a central opening through which the front surface of the lighted panel can be viewed. The front portion and rear portion cooperate to define a channel that includes lighting disposed therein that is configured to back light the lighted panel.
    Type: Grant
    Filed: December 10, 2013
    Date of Patent: November 3, 2015
    Assignee: C&D ZODIAC, INC.
    Inventors: William Wai-Loong Young, Glen A. Noda, Ian Geoffrey Scoley, Nicholas Lee
  • Patent number: 9105206
    Abstract: The inventive LED-illuminated sign structure includes a frame, an outer shell and a plurality of separate LED emitters. The frame includes two opposite main support panels each having an upright outward surface, and shell-supporting members. The outer shell has a pair of opposite translucent sidewalls each extending along and is spaced from the respective outward surface. The LED emitters are spaced on each outward surface such that the translucent sidewalls are illuminated substantially entirely. The frame defines an open region for passing reflected light within the frame structure to and through the opposite translucent sidewall. The LED illuminator includes an LED emitter on a mounting surface, a one-piece lens member over the LED emitter and including a lens portion and a flange portion, and a gasket between the flange portion and the mounting surface.
    Type: Grant
    Filed: December 23, 2010
    Date of Patent: August 11, 2015
    Assignee: Cree, Inc.
    Inventors: Don Miletich, John Stanley
  • Patent number: 8911134
    Abstract: An exit sign comprising a housing, a plurality of green color LEDs and red color LEDs or bicolor green and red color LEDs positioned in the housing for emitting both a green color light and a red color light with a filter holder for holding a selected green color filter or a selected red color filter for passing the selected green color light or selected red color light to a stencil having openings for passing the selected green color light or selected red color light to an observer. Yellow color LEDs can be alternatively positioned in the housing for emitting yellow color light comprising both green color light and red color light. White color LEDs can also be alternatively positioned in the housing for emitting white color light also comprising both green color light and red color light.
    Type: Grant
    Filed: June 9, 2011
    Date of Patent: December 16, 2014
    Assignee: DeNovo Lighting, LLC
    Inventor: Georgiana Hsu
  • Patent number: 8898940
    Abstract: An exit sign includes an explosion-proof housing having a first chamber and a second chamber within the housing separated by a divider wall, a bottom plate attached to said housing and defining an interface between said housing and said bottom plate, and a window, disposed in said bottom plate, containing a clear glass or plastic window pane and located proximate to said first chamber of said housing, wherein a volume of said first chamber, a housing wall thickness surrounding said first chamber, a divider wall thickness, and a window pane thickness are arranged and designed according to an expected internal explosion pressure within said first chamber, and wherein a volume of said second chamber, a housing wall thickness surrounding said second chamber, and a divider wall thickness are arranged and designed according to an expected internal explosion pressure within said second chamber.
    Type: Grant
    Filed: May 13, 2013
    Date of Patent: December 2, 2014
    Assignee: Rig-A-Lite Partnership, Ltd.
    Inventor: Syed Q. Hasan
  • Publication number: 20140331533
    Abstract: An exit sign includes an explosion-proof housing having a first chamber and a second chamber within the housing separated by a divider wall, a bottom plate attached to said housing and defining an interface between said housing and said bottom plate, and a window, disposed in said bottom plate, containing a clear glass or plastic window pane and located proximate to said first chamber of said housing, wherein a volume of said first chamber, a housing wall thickness surrounding said first chamber, a divider wall thickness, and a window pane thickness are arranged and designed according to an expected internal explosion pressure within said first chamber, and wherein a volume of said second chamber, a housing wall thickness surrounding said second chamber, and a divider wall thickness are arranged and designed according to an expected internal explosion pressure within said second chamber.
    Type: Application
    Filed: May 13, 2013
    Publication date: November 13, 2014
    Applicant: RIG-A-LITE PARTNERSHIP, LTD.
    Inventor: SYED Q. HASAN
  • Patent number: 8878666
    Abstract: An emergency exit sign having a beacon module for indoor positioning and an indoor positioning system using the same are provided. The emergency exit sign includes a power supply unit, an AC/DC converter, an indoor positioning beacon module, an LED lamp, and a charger. The power supply unit receives an input of a power source and supplies the power source. The AC/DC converter converts the power source supplied and supplies a driving power source. The indoor positioning beacon module periodically wireless transmits a beacon signal including a beacon ID through a built-in antenna. The LED lamp is installed within the housing such that the lamp is positioned in rear of the display. When a power source is not supplied from the power supply unit, the charger supplies a driving power source.
    Type: Grant
    Filed: February 21, 2013
    Date of Patent: November 4, 2014
    Assignee: Winitech Co., Ltd.
    Inventor: Kyo Koan Chu
  • Publication number: 20140320011
    Abstract: An emergency lighting system with central batteries power remote LED fixtures and exit signs, with all components integrated throughout a single or multiple buildings. Status reports are available on demand and the system will generate written records required by the Life Safety Code. A wide range of fixtures optimized for emergency lighting are available for interior and exterior applications and all can be monitored via internet, with report displays available on any digital device. Easy access to batteries, automated testing, high lumen outputs, efficient optics and long lamp life ensure the lowest possible life cycle costs.
    Type: Application
    Filed: April 29, 2014
    Publication date: October 30, 2014
    Applicant: Signtex, Inc.
    Inventor: William Hegarty
  • Patent number: 8443535
    Abstract: An emergency exit indicator includes a housing and a light source received in the housing. The housing includes two first connecting arms at top and bottom thereof and two second connecting arms at lateral sides thereof. The first and second connecting arms are connected with each other by four connecting units located respectively at four corners of the housing. Each connecting unit includes a seat and two engaging tabs extending from the seat. One engaging tab is engaged with a corresponding first connecting arm, and the other is engaged with a neighboring second connecting arm.
    Type: Grant
    Filed: August 25, 2010
    Date of Patent: May 21, 2013
    Assignees: Fu Zhun Precision Industry (Shen Zhen) Co., Ltd., Foxconn Technology Co., Ltd.
    Inventors: Tay-Jian Liu, Ying Xiong, Jian-Bing Qian
  • Patent number: 8410949
    Abstract: An emergency exit indicating device includes an exit sign and a smoke dispelling system. The exit sign is configured for displaying where an emergency exit is located. The smoke dispelling system is configured for dispelling smoke from around the exit sign in the event of fire.
    Type: Grant
    Filed: August 14, 2009
    Date of Patent: April 2, 2013
    Assignee: Hon Hai Precision Industry Co., Ltd.
    Inventor: Ming-Yang Liao
  • Patent number: 8296977
    Abstract: An emergency-light indicator includes an emergency light module and an indication light module includes a front cover module, a frame, a PCB module configured in the frame, multiple battery modules configured in the frame and a back panel module. A latching groove is configured on top and bottom of the frame. An emergency sign is displayed on either or both the front cover module and the back panel module. The emergency light module includes multiple LED modules and a bracket set. Each of the LED modules is structured by a lens, a reflect-light ring, a first spring, a second spring, a LED PCB, a right cover and a left cover. Multiple latching blocks are configured on the bracket set. The latching blocks are corresponding to the latching groove. The emergency light module is installed to the indication light module via a latch of the latching blocks and the latching groove.
    Type: Grant
    Filed: April 28, 2011
    Date of Patent: October 30, 2012
    Inventor: Sung-Keun Lee
  • Patent number: 8250794
    Abstract: An emergency information sign (10) comprising a base substrate (12) and an indicia layer (14) positioned over the base substrate (12). Exposed areas (24) of the base substrate (12) and covering areas (26) of the indicia layer (14) together form emergency information indicia. The base substrate (12) and the indicia layer (14) each carry phosphorescent materials (20, 22), which absorb and store light from a primary light source (16/18) and emit this stored light during dark conditions.
    Type: Grant
    Filed: February 10, 2005
    Date of Patent: August 28, 2012
    Assignee: Avery Dennison Corporation
    Inventor: Michael E. Hannington
  • Publication number: 20120174448
    Abstract: An emergency-light indicator includes an emergency light module and an indication light module includes a front cover module, a frame, a PCB module configured in the frame, multiple battery modules configured in the frame and a back panel module. A latching groove is configured on top and bottom of the frame. An emergency sign is displayed on either or both the front cover module and the back panel module. The emergency light module includes multiple LED modules and a bracket set. Each of the LED modules is structured by a lens, a reflect-light ring, a first spring, a second spring, a LED PCB, a right cover and a left cover. Multiple latching blocks are configured on the bracket set. The latching blocks are corresponding to the latching groove. The emergency light module is installed to the indication light module via a latch of the latching blocks and the latching groove.
    Type: Application
    Filed: April 28, 2011
    Publication date: July 12, 2012
    Applicant: Je Woo Corporation, LTD.
    Inventor: SUNG-KEUN LEE
  • Patent number: 8183989
    Abstract: An emergency exit indicator includes a light source, a visual indicator and a power line communication unit, wherein the visual indicator is disposed within the illumination scope of the light source, and the power line communication unit is electrically connected to the light source. The emergency exit indicator is capable of altering the displayed escape information. The present invention further provides an emergency exit indicating system using the above-mentioned emergency exit indicator and can more precisely display the escape information.
    Type: Grant
    Filed: July 21, 2009
    Date of Patent: May 22, 2012
    Assignee: GE Investment Co., Ltd.
    Inventor: Wen-Kuei Tsai
  • Patent number: 8074387
    Abstract: A sign system comprises one or more box-like modules having a front section and a corresponding rear section sized to fit together in sliding engagement to define an interior cavity. The sections may be joined together with fasteners which engage the side panels of each section thereby leaving the front and rear surfaces free of discontinuities. The sign modules may be affixed to a generally planar surface or supported on internal or external mounting posts. During installation, the rear section may be mounted first and the front section subsequently attached to the rear section. In this way only approximately one-half of the total weight of the sign need be lifted and manipulated at any one time thereby facilitating installation. The interior cavity defined by the front and rear sections may accommodate lighting means for internally lighting the sign.
    Type: Grant
    Filed: March 20, 2007
    Date of Patent: December 13, 2011
    Inventor: Salvatore Patrick Mancuso
  • Publication number: 20110232143
    Abstract: An exit sign comprising a housing, a plurality of green color LEDs and red color LEDs or bicolor green and red color LEDs positioned in the housing for emitting both a green color light and a red color light with a filter holder for holding a selected green color filter or a selected red color filter for passing the selected green color light or selected red color light to a stencil having openings for passing the selected green color light or selected red color light to an observer. Yellow color LEDs can be alternatively positioned in the housing for emitting yellow color light comprising both green color light and red color light. White color LEDs can also be alternatively positioned in the housing for emitting white color light also comprising both green color light and red color light.
    Type: Application
    Filed: June 9, 2011
    Publication date: September 29, 2011
    Inventor: Georgiana Hsu
  • Patent number: 8024880
    Abstract: A combination exit sign and emergency light is provided, wherein the emergency light is disposed along a bottom, portion of the exit sign. The bottom portion of the housing is formed with a recessed section intermediate opposing side flange portions, with a light bar incorporating LEDs being mounted in the recess section to provide emergency lighting during power outages and emergency situations. The bar is white in color on the outside, except a bottom portion of the bar is left clear for the free transmission of light. With this construction, at least a substantial majority of fight generated by the LEDs will be directed out of the bottom portion, while the side portions are also preferably lit thereby providing a more intense light out of the bottom portion to assure adequate illumination leading to a suitable exit.
    Type: Grant
    Filed: May 4, 2010
    Date of Patent: September 27, 2011
    Assignee: Best Lighting Products, Inc.
    Inventors: Ping Shuo Kuan, Jeffrey S. Katz
  • Publication number: 20110138665
    Abstract: An emergency exit indicator includes a housing and a light source received in the housing. The housing includes two first connecting arms at top and bottom thereof and two second connecting arms at lateral sides thereof. The first and second connecting arms are connected with each other by four connecting units located respectively at four corners of the housing. Each connecting unit includes a seat and two engaging tabs extending from the seat. One engaging tab is engaged with a corresponding first connecting arm, and the other is engaged with a neighboring second connecting arm.
    Type: Application
    Filed: August 25, 2010
    Publication date: June 16, 2011
    Applicants: FU ZHUN PRECISION INDUSTRY (SHEN ZHEN) CO., LTD., FOXCONN TECHNOLOGY CO., LTD.
    Inventors: TAY-JIAN LIU, YING XIONG, JIAN-BING QIAN
  • Patent number: 7845103
    Abstract: There is provided an illuminated sign mounting system and methods for mounting an illuminated sign to a mounting surface.
    Type: Grant
    Filed: February 14, 2007
    Date of Patent: December 7, 2010
    Assignee: Acuity Brands, Inc.
    Inventors: Mark Logan, Paul Pickard, Mark Wedell
  • Publication number: 20100243284
    Abstract: An emergency exit indicating device includes an exit sign and a smoke dispelling system. The exit sign is configured for displaying where an emergency exit is located. The smoke dispelling system is configured for dispelling smoke from around the exit sign in the event of fire.
    Type: Application
    Filed: August 14, 2009
    Publication date: September 30, 2010
    Applicant: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventor: Ming-Yang LIAO
  • Patent number: 7774965
    Abstract: An illuminated emergency sign comprises a main body, a rotary body, side covers, a circuit board, a LED lamp indicator, an acrylic sign panel, and a canopy. The acrylic sign panel is connected to the lower end of the rotary body. In the rotary body is disposed a LED lamp panel. The LED lamp indicator is disposed on the LED lamp panel. The rotary body is rotatably connected to the lower end of the main body. In the main body is disposed a battery. The side covers are connected to both ends of each of the main body and the rotary body. The canopy is disposed on the top of the main body. The sign panel of such an illuminated emergency sign can be rotated within 180 degrees and fixed at a proper angle under action of the friction.
    Type: Grant
    Filed: February 8, 2009
    Date of Patent: August 17, 2010
    Assignee: Je Woo Corporation, Ltd., Hui Yang
    Inventor: Sung-Keun Lee
  • Patent number: 7739818
    Abstract: There is provided a sign insert that can house the inner components of a sign. The insert can be easily inserted into and removed from signs so that either of the sign housing or the sign insert with inner components can be salvaged and reused if the other becomes inoperable.
    Type: Grant
    Filed: February 14, 2007
    Date of Patent: June 22, 2010
    Assignee: ABL IP Lighting, LLC
    Inventors: Mark Logan, Paul Kenneth Pickard, Mark Wedell
  • Patent number: 7685753
    Abstract: An illuminated, shallow weatherproof signage character has individual three dimensional back-lighted/front/side and/or silhouette-lighting, with frosted areas of plastic, with virtually no limitation on the size or number of individual characters, which may be moulded or machined from solid plastic, which is U/V protected. Miniature, preferably LED lamps are concealed in the character. The life of the LED lamps is extended by limiting the applied voltage and the “on” time. The signage characters are usually elevated from their supporting surface, to effect back-lighting. Colored LED's or a RBG LED, can be used selectively to color the plastic signage.
    Type: Grant
    Filed: September 7, 2006
    Date of Patent: March 30, 2010
    Inventor: Darrel R. Slowski
  • Patent number: 7520072
    Abstract: Emergency signs and combination emergency signs and emergency lights wherein the combination signs are compact for shipment and are energy efficient using first interior light emitting diodes, powered by an AC power source, for illumination of messages formed in at least one side wall of the emergency signs and having at least one emergency light emitting diode lamp for providing emergency lighting in the event of AC power failure and wherein the at least one emergency light emitting diode lamp, in some embodiments, is selectively deployable and adjustable relative to the signs, and in others, is fixedly mounted relative to the signs.
    Type: Grant
    Filed: May 9, 2007
    Date of Patent: April 21, 2009
    Inventor: William Yu
  • Patent number: 7501575
    Abstract: An electrical outlet box includes fastening hardware to secure the box to a wall structure. A cover overlies the fastening hardware. The box has a flange with mounting apertures therethrough to receive the fastening hardware. The apertures may be formed in a recess in the flange. The cover may be formed as a plug that is inserted into the recess to provide a flush surface with said flange.
    Type: Grant
    Filed: August 17, 2007
    Date of Patent: March 10, 2009
    Assignee: Thomas & Betts International, Inc.
    Inventor: Robert K. Jolly
  • Publication number: 20080295371
    Abstract: An exit sign comprising a housing and a plurality of LEDs that activates to produce yellow color light. The plurality of LEDs are mounted in the housing. Means for passing light from the plurality of LEDs in the form of indicia symbolizing an exit enables viewing by an observer, such means includes a stencil having four independent letters forming the word EXIT. DC circuitry is in operative electrical connection with the plurality of LEDs. A source of AC electrical power activates the DC circuitry. The plurality of LEDs can be both red color output LEDs and green color output LEDs, or the plurality of LEDs can be bicolor red and green LEDs having the capability of producing both red light and green light. The red light and green light are additively mixed to produce yellow light. In the alternative, the plurality of LEDs can be yellow color output LEDs or the plurality of LEDs can be white color output LEDs.
    Type: Application
    Filed: May 30, 2008
    Publication date: December 4, 2008
    Inventor: Georgiana Hsu
  • Publication number: 20080276509
    Abstract: Emergency signs and combination emergency signs and emergency lights wherein the combination signs are compact for shipment and are energy efficient using first interior light emitting diodes, powered by an AC power source, for illumination of messages formed in at least one side wall of the emergency signs and having at least one emergency light emitting diode lamp for providing emergency lighting in the event of AC power failure and wherein the at least one emergency light emitting diode lamp, in some embodiments, is selectively deployable and adjustable relative to the signs, and in others, is fixedly mounted relative to the signs.
    Type: Application
    Filed: May 9, 2007
    Publication date: November 13, 2008
    Inventor: William Yu
  • Publication number: 20080250685
    Abstract: An illuminated sign includes a light source with a light emitting diode, and a sign panel. The sign panel is at least partially transparent, and the light source is at least partially embedded in the sign panel, thereby illuminating the sign panel. The sign may be mounted to a wall, ceiling, or any other mounting surface, and used as an emergency exit sign. The sign may be single- or double-sided with two panels separated by reflective material. The sign may include a positionable joint coupled to the sign panel, which selectively orients the sign panel with respect to a mounting surface, and a high-intensity light emitting diode adapted to provide floodlighting. A method of illuminating a sign includes providing a light source including a light emitting diode, and embedding the light source at least partially in a sign panel. The sign panel is at least partially transparent, thereby illuminating the sign panel.
    Type: Application
    Filed: February 26, 2008
    Publication date: October 16, 2008
    Applicant: THOMAS & BETTS INTERNATIONAL, INC.
    Inventors: Ron C.J. Bijman, Camille Descarries, Patrick Martineau
  • Patent number: 7423548
    Abstract: A system and method for providing emergency egress path indication by providing a path direction indicator that is hidden from view during normal operation and is exposed to view upon activation by an emergency signal. Upon being exposed to view the indicator may be lighted and may provide light to people seeking exit from the building. In one embodiment the indicator may include a laser pointer further indicating the direction of egress. Visible and Braille text may also be included on the face of the indicator. The indicator device may be located near floor level for better visibility in smoke environments. In the non-visible state, the indicator may present a rugged face to withstand accidental kicks and bumps as may be encountered when mounted near the floor. The indicator may be operated repetitively and nondestructively to allow inclusion of the indicator in fire and other emergency drills.
    Type: Grant
    Filed: September 30, 2005
    Date of Patent: September 9, 2008
    Inventor: Michael Stephen Kontovich
  • Patent number: 7350327
    Abstract: Canopy mounting devices that cover junction boxes of various configurations and provide a pleasing, finished appearance to a resulting installation are disclosed. Certain embodiments of a canopy mounting device include a universal mounting plate integrally formed with a connector of the mounting device such that direct mounting to junction boxes of different configurations is possible. The mounting devices accommodate not only appropriate mountings of junction boxes within ceilings or walls but also inappropriate mountings, such as when junction boxes are recessed too deeply within a ceiling or wall or mounted with junction box edges extending outwardly from the ceiling or wall.
    Type: Grant
    Filed: January 22, 2004
    Date of Patent: April 1, 2008
    Assignee: ABL IP Holding, LLC
    Inventors: Mark Logan, Paul Kenneth Pickard
  • Publication number: 20080019142
    Abstract: A lamp assembly and method for illuminating a backlit sign include at least one circuit board and light emitting diodes mounted on the circuit board. The light emitting diodes are oriented such that a majority of emitted light or a beam from the circuit board is directed to only a portion of the backlit sign. The light emitting diodes are positioned uniformly around a perimeter of the circuit board to ensure uniform illumination around the lamp assembly. The circuit boards are arranged parallel to each other and perpendicular to a longitudinal axis of the lamp assembly. The lamp assembly includes a plurality of resistors mounted on the circuit board such that heat dissipated by the resistors is uniformly distributed over the circuit board. The lamp assembly also includes a Bridge rectifier to provide a DC output voltage from AC or DC input voltages.
    Type: Application
    Filed: June 29, 2006
    Publication date: January 24, 2008
    Inventors: Radu-Cornel Rapeanu, Zhi Gang Xing, Michel Lambert
  • Publication number: 20080010879
    Abstract: A sign comprises a base cover, an LED circuit board, an upper cover and a matte-surface word board. The upper cover is provided with a decorative groove that will be changed when the word is changed. The word on the LED circuit board is composed of a multitude of LED light emitters, which can be switched one by one, thereby reducing the maintenance time and cost. The matte-surface word board can diffuse the light emitted therein and conceal the circuit board therein. The LED circuit board can change the flashing rate of the LED light emitters and simulate the effect of neon lights.
    Type: Application
    Filed: July 12, 2006
    Publication date: January 17, 2008
    Inventors: Andy Kaoh, Shieh-Hwei Lee Chen
  • Patent number: 7303309
    Abstract: A backlit sign with an LED module, with a housing that includes a top wall having a first length, a bottom wall having a second length, and a pair of opposing sidewalls each having a third length, wherein at least a portion of one of the sidewalls is translucent. One or more LED modules are mounted to the top wall and include a plurality of LEDs for producing light. The first, second and third lengths are selected to maximize illumination of the sidewalls by the produced light, and to minimize a width and weight of the sign. A mirror can be used to increase the reflectivity of the bottom wall.
    Type: Grant
    Filed: July 6, 2004
    Date of Patent: December 4, 2007
    Assignee: Leotek Electronics Corporation
    Inventors: Chen H. Wu, Steve Bacilieri
  • Patent number: 7287347
    Abstract: An exit sign for use in hazardous atmospheres including an explosion-proof housing and a sign panel with indicia thereon. The housing prevents the ignition of gas or vapor surrounding the enclosure due to sparks, flashes or an explosion of the gas or vapor within the enclosure by providing an ample heat sink surface along any flame path to cool gases escaping from the housing. The sign panel preferably includes one or more transparent sheets which are edge lit from a light source contained in the explosion-proof housing that shines through a window in the housing into the top edge of the sign panel to illuminate the face(s) and the indicia thereon. The light source utilizes a number of long life light emitting diodes. The exit sign preferably includes a sealed maintenance-fee rechargeable battery for powering the light source when externally supplied power to the exit sign is absent.
    Type: Grant
    Filed: April 11, 2005
    Date of Patent: October 30, 2007
    Assignee: Rig-A-Lite Partnership Ltd.
    Inventor: Syed Q. Hasan
  • Patent number: 7241021
    Abstract: An emergency information lighting system (100/200/300), comprising a primary light source (110/210/310) and a housing (112/212/312) for the primary light source (110/210). The housing (112/212/312) includes a first wall (120/220/320) with indicia openings (126/226/326) which correspond to emergency information. The primary light source (110/210/310) emits primary light, which passes through the indica openings (126/226/326) to display the emergency information to a viewing environment. The housing (112/212) or a bulb (316) incorporates a phosphorescent material (132/232/332) which, in the absence of the primary light, emits passive light to display the emergency information to the viewing environment.
    Type: Grant
    Filed: February 10, 2005
    Date of Patent: July 10, 2007
    Assignee: Avery Dennison Corporation
    Inventor: Michael E. Hannington
  • Patent number: 7226195
    Abstract: A compact and cost-efficient lamp assembly includes cold-cathode fluorescent lamps in a variety of edge-lit display sign applications specifically, in edge-lit emergency lighting signs. The lamp assembly includes in one self-contained module a lower housing unit and an upper housing unit shaped to cover the lower housing unit. The lower housing unit is divided into a lower frame and an upper frame disposed on top of the lower frame. The upper frame has at least two inverters disposed within. The lower frame is a parabolic shape reflector frame supporting at least two cathode lamps in line with the two inverters, each of which is connected to each lamp for providing high voltage to power up the lamps. Additionally, an edge-lit panel having a front and back side is disclosed in the present invention. The backside includes a semi-transparent frosted surface with a white opaque lamination glued on the frosted surface.
    Type: Grant
    Filed: July 23, 2004
    Date of Patent: June 5, 2007
    Assignee: Thomas & Betts International
    Inventors: Radu C. Rapeanu, Viorel Mirica, Zhigang Xing, David Blier
  • Patent number: 7204050
    Abstract: An exit device includes an electroluminescent exit sign assembly, preferably mounted on a push rail actuator of the exit device. An electroluminescent illuminator, an opaque material and a transparent protective cover form the electroluminescent sign assembly. The push rail actuator operates a latch mechanism and opens an associated exit door when pressure is applied. An inverter may be located within the exit device to power the electroluminescent illuminator with an AC or voltage. The electroluminescent sign assembly is preferably removable for repair or replacement without removing the exit device from the exit door and is located within a surface cavity in an electrically insulating touchpad on the exit device actuator. Additional transparent nonconductive material surrounds the electroluminescent material to provide further electrical insulation.
    Type: Grant
    Filed: December 29, 2003
    Date of Patent: April 17, 2007
    Assignee: Sargent Manufacturing Company
    Inventors: Thanasis Molokotos, Daniel J Picard
  • Patent number: 7114840
    Abstract: An exit sign comprising a housing and a plurality of red and green color LEDs having the capability of being selectively activated to produce either red light or green light. The plurality of LEDs are mounted in a mutual lighting association in the housing. A switch is manually operable to selectively activate the plurality of red color LEDs to produce the red light and in the alternative, to selectively activate of the plurality of the green color LEDs to produce the green light. Means for passing light from the selected red light or selected green light in the form of indicia symbolizing an exit enables viewing by an observer, such means include a stencil having four independent letters forming the word EXIT. DC circuitry is in operative electrical connection with the plurality of LEDs. A source of DC electrical power activates the DC circuitry.
    Type: Grant
    Filed: January 23, 2004
    Date of Patent: October 3, 2006
    Inventor: Douglas Hamrick
  • Patent number: 7047679
    Abstract: A mold for stepwise molding, using two different plastics, signage composed of a plurality of symbols surrounded by a continuous matrix including a first mold member having a first cavity defining surface including at least one first gate for admitting a first plastic, and a second mold member movable with respect to the first mold member having a second cavity defining surface confronting the first cavity defining surface. The cavity defining surfaces are spaced from each other by a predetermined distance to define a first cavity receiving the first plastic. The second mold includes lateral surfaces defining at least some of the plurality of symbols. At least one second gate is provided in the first mold member, each second gate admitting a second plastic only when a second cavity is defined so that at least a portion of the lateral surfaces defining at least some of said plurality of symbols are retained in position as the second plastic is injected.
    Type: Grant
    Filed: October 28, 2002
    Date of Patent: May 23, 2006
    Assignee: L. L. Culmat, L.P.
    Inventors: J. Larry Underwood, Ricky W. Tumlin
  • Patent number: 6848798
    Abstract: 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 lights 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.
    Type: Grant
    Filed: November 19, 2002
    Date of Patent: February 1, 2005
    Assignee: Acuity Brands, Inc.
    Inventors: Mark Campbell Logan, Andrew Edward Masters, Edwin Lewis Hull
  • Publication number: 20040244247
    Abstract: A sign for indicating an egress from a room is provided. The sign comprises a photo-luminescent material and at least one light source adjacent the photo-luminescent material for charging the photo-luminescent material.
    Type: Application
    Filed: June 4, 2004
    Publication date: December 9, 2004
    Inventor: Charles Bolta
  • Patent number: 6824295
    Abstract: A combination emergency light fixture having a housing constructed to have a minimum footprint or overall configuration for housing the required components and still conform to the code requirements for such emergency fixtures. The housing includes an annular body member having a front and rear opening defining a light chamber covered by a removable sign panel and/or a mounting panel. An interior lamp source and a pair of operating batteries are disposed within the light chamber in a manner to minimize the overall footprint of the housing. Disposed between the operating battery source is a triangular shaped component compartment having light reflecting surfaces to reflect the light rays generated by the internal light source outward toward the sign panel to enhance the illumination thereof. The fixture may also include external light sources.
    Type: Grant
    Filed: November 5, 2002
    Date of Patent: November 30, 2004
    Assignee: Astralite, Inc.
    Inventor: Daniel Grondal
  • Patent number: 6802277
    Abstract: A emergency sign emits a non-electrical light and sounds a non-electrical alarm when an elevated level of heat is sensed, such heat from a fire, to provide a combined light and a sound alert signals. The light results from the mixing of a chemical compound having chemiluminescent properties. The light illuminates indicia located on the face plate of the sign. The alarm is sounded by releasing compressed gas from a cartridge and directing the released gas through a whistle.
    Type: Grant
    Filed: April 11, 2002
    Date of Patent: October 12, 2004
    Inventors: Durell Clay, Alfonso Clay
  • Publication number: 20040154199
    Abstract: A light-conductive and transparent front panel 12 is mounted in a frame 11. One or more etched characters 22 are formed on a rear surface 17 of the front panel 12, and one or more photo-luminescent characters 16 is/are disposed in overlying relation to the etched character(s) 22. A strip of light emitting diodes (LED's) 14 are mounted in the frame 11 adjacent to a side wall 13 of the front panel 12. Mounting members 19, 20 are formed on the frame to position and hold the front panel in place.
    Type: Application
    Filed: February 10, 2003
    Publication date: August 12, 2004
    Inventors: Michael G. Robinson, Thomas W. Brignall
  • Patent number: 6763624
    Abstract: This invention provides a sign image by projecting light through a replaceable pivotable image forming apparatus onto an adjacent surface. The apparatus is contained within a telescoping tube of three locking sections with overlap indicators. The tube is pivotably mounted within a wall or ceiling. The pivotable tube and stencil permits projecting the sign image onto an adjacent inclined surface. The first section has a light source at its outer end and image forming apparatus which provides the sign message. The other two sections each contain a lens for respective image size and focus adjustment by changing the sections overlaps.
    Type: Grant
    Filed: October 2, 2002
    Date of Patent: July 20, 2004
    Inventor: Thomas W. Gow
  • Publication number: 20040088895
    Abstract: A lighting fixture, in particular an exit sign luminaire or a similar instructive luminaire, which comprises a mounting housing (1) that is arranged to receive power supply (7) for a light source (5) of the luminaire and that is arranged for securing to a mounting base, such as a wall or a ceiling, and a sign part (2) that is arranged for securing in connection with the mounting housing (1). The mounting housing (1) is arranged to receive the light source (5) and the lighting fixture also comprises at least one optical fiber (6) arranged to transmit light, the first end (9) of which optical fiber is arranged in connection with the light source (5) in the mounting housing (1) and whose light-transmitting portion (8) is arranged in connection with the sign part (2) so as to illuminate it with light produced by the light source (5).
    Type: Application
    Filed: November 5, 2003
    Publication date: May 13, 2004
    Applicant: Teknoware Oy
    Inventor: Jari Tabell
  • Publication number: 20040064991
    Abstract: This invention provides a sign image by projecting light through a replaceable pivotable image forming apparatus onto an adjacent surface. The apparatus is contained within a telescoping tube of three locking sections with overlap indicators. The tube is pivotably mounted within a wall or ceiling. The pivotable tube and stencil permits projecting the sign image onto an adjacent inclined surface. The first section has a light source at its outer end and image forming apparatus which provides the sign message. The other two sections each contain a lens for respective image size and focus adjustment by changing the sections overlaps.
    Type: Application
    Filed: October 2, 2002
    Publication date: April 8, 2004
    Inventor: Thomas W. Gow