Source: http://www.google.com/patents/US6142648?dq=%22edwin+asa+markham%22
Timestamp: 2014-07-22 13:56:57
Document Index: 175063768

Matched Legal Cases: ['art.2', 'art.3', 'art.6', 'art.8', 'art.9', 'art.10', 'art.67', 'art.68', 'art.69', 'art.70', 'art.71', 'art.79', 'art.82', 'art.88', 'art.89', 'art.90', 'art.93', 'art.94', 'art.96', 'art.97', 'art.124', 'art.125', 'art.126', 'art.127', 'art.128', 'art.129', 'art.130', 'art.131', 'art.132', 'art.133', 'art.134', 'art.135', 'art.136', 'art.137', 'art.138', 'art.139', 'art.140', 'art.141', 'art.142', 'art.143', 'art.144', 'art.145', 'art.146', 'art.147', 'art.148', 'art.149', 'art.150', 'art.151', 'art.152', 'art.153', 'art.154', 'art.155', 'art.156', 'art.157', 'art.159', 'art.161']

Patent US6142648 - Emergency lighting unit/exit sign combination - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More »Sign in<nobr>Advanced Patent Search</nobr>PatentsAn 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...http://www.google.com/patents/US6142648?utm_source=gb-gplus-sharePatent US6142648 - Emergency lighting unit/exit sign combinationAdvanced Patent SearchPublication numberUS6142648 APublication typeGrantApplication numberUS 09/132,814Publication dateNov 7, 2000Filing dateAug 12, 1998Priority dateNov 22, 1995Fee statusPaidAlso published asCA2184940A1, CA2184940C, US5797673Publication number09132814, 132814, US 6142648 A, US 6142648A, US-A-6142648, US6142648 A, US6142648AInventorsMark Campbell Logan, Andrew Edward Masters, Edwin Lewis HullOriginal AssigneeNsi Enterprises, Inc.Export CitationBiBTeX, EndNote, RefManPatent Citations (28), Non-Patent Citations (162), Referenced by (19), Classifications (14), Legal Events (6) External Links: USPTO, USPTO Assignment, EspacenetEmergency lighting unit/exit sign combinationUS 6142648 AAbstract 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. 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. The present fixture is preferably formed from light weight materials such as polycarbonate/ABS or sheet metal configured to mount in tension internal weight such as weight due to enlarged battery mass and the like as well as externally mounted emergency lights. Manufacture of the present fixture is improved by the ability to mold major portions of the fixture from suitable polymeric materials, thereby allowing formation of substantial portions of the fixture located internally of the housing integrally with the housing to substantially reduce the number of parts necessary to be assembled together in an assembly situation. Assembly, installation and maintenance of a molded fixture according to the invention is further improved by the ability to snap-fit together all structural elements of the fixture both internally and externally of the housing.
What is claimed is: 1. A combination exit sign and emergency lighting unit comprising a housing capable of supporting the weight of the combination, the housing being formed of a plastic material, at least one emergency lighting unit assembly mountable directly to the housing exteriorly thereof for providing a unit emergency lighting function, and means for removably mounting the assembly to the housing.
CROSS REFERENCE TO RELATED APPLICATION This application is a continuation of application Ser. No. 08/561,956, filed Nov. 22, 1995, now U.S. Pat. No. 5,797,773, by the same inventors and assigned to the same assignee, said prior application being incorporated hereinto by reference.
DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring now to the drawings, and particularly to FIGS. 1 and 2, a combination exit sign/emergency unit fixture is seen at 10 to be comprised of a housing 12 and two emergency lighting unit lamp assemblies 13. The fixture 10 will generally be referred to herein as the combo fixture 10 or merely as the fixture 10. The housing 12 is essentially formed from frame 14 and face plate 16 as well as back plate 18. In certain embodiments of the invention, the back plate 18 can be essentially identical to the face plate 16, such a combo fixture 10 within constituting a double-faced fixture having indicia 20 on both faces thereof-such as can occur in top and end mounted installations. In a direct wall-mounted installation, the back plate 18 is necessary in order for the combo fixture 10 to be mounted directly to a wall as will be described hereinafter.
Battery Mounting Arrangements As aforesaid, the battery compartment 122 is configured to house the battery 30 as well as a larger battery 162. It is to be understood, however, that only one of the batteries 30 and 162 would be utilized at any one given time. As can be seen in FIG. 17A inter alia, the battery compartment 122 is formed centrally of the lower portion of the combo fixture 10 and is provided with snap fingers 164 on inner surfaces of the walls 144 and 146, the snap fingers 164 extending from said wall surfaces at a lesser height forwardly of the compartment 122 and terminating at a greater height interiorly of the compartment 122 such that the battery 30 can slide over the snap fingers 164 and into a position of essentially against a back wall 166 of the battery compartment 122. It is to be seen that the battery compartment 122 is provided with a top wall 168 having tabs 170 extending downwardly therefrom at the outermost end of said top wall 168 so that the larger battery 162 can be slipped into place under the tabs 170 and into a position abutting the back wall 166 and held by the tabs 170 in order to hold the larger battery 162 in place. Accordingly, the battery compartment 122 is provided with structure capable of holding batteries of at least two different sizes within said compartment 122 by snap-fitting arrangements.
Emergency DC Lamp Mounting Referring now to FIGS. 21A and 21B, as well as to FIG. 17A inter alia, one of the mounting bases 134 intended for mounting one of the DC bulbs 138 is now described, a description of one of the DC emergency lamps 26 sufficing for a description of both. The bulb 138 is snapped into the lamp socket 136 to be structurally held thereby and to electrically connect with the lamp socket 136 to power provided in an emergency situation by the battery 30, 162 inter alia. The lamp socket 136 is formed of a rectangular collar 176 open at one end to receive the bulb 138, electrical contacts (not shown) being located within the interior of the collar 176. The collar 176 terminates at the end opposite the bulb 138 in a reduced lower base portion, the lamp socket 136 snap-fitting into one of the mounting bases 134. The lamp base 134 is formed of two basic upper elements 180 each having walls 182 which are perpendicular to each other, rear walls 182 extending toward each other but not contacting at the rear of the base 134. Snap tabs 184 extend from the facing walls 182 toward each other at the upper end of the base 134, the heights of the walls 182 being essentially equal to the height of the collar 176. A pair of lateral snaps 186 extend from the rear of the base 134 below the walls 182 and receive the lower base portion 178 therebetween when the lamp socket 136 is snap-fitted into the mounting base 134. The collar 176 of the lamp socket 136 is partially enclosed by the walls 182 with the sanp tabs 184 abutting against upper edges of the collar 176 to prevent dislodgement of said socket 136 in an upward direction. The discontinuity provided by the lack of contact between the rear walls 182 thereby allows upper portions of the mounting base 134 to expand on insertion of the lamp socket 136 thereinto. Snap mounting of the lamp socket 136 to the mounting base 134 therefore occurs. The lateral snaps 186 prevent dislodgement of the lamp socket 136 forwardly of the mounting base 134, the snaps 186 fitting against the reduced lower base portion 178 so that the lamp socket 136 is positively retained within the mounting base 134.
Back Panel Mounting Arrangement Referring to FIGS. 10A and 10B, the back panel 18 is seen to be formed with knock outs 270, 272 and 274 as well as with a center channel knock out 276. The knock out 276 is, removed when the back panel 18 is to be used to directly mount the combo fixture 10 to a wall (not shown). A J-box (not shown) in a wall is fitted with a bracket (not shown) as is conventional and the appropriate knock out 270, 272 or 274 corresponding to the size of the J-box is knocked out by removing the plastic flashing within ovals 278 associated with a particular ring of the knock outs. The back plate 18 is then mounted to the J-box and bracket (not shown). The frame 14 is then mounted to the back plate 18 with peg elements 152 being received within apertures 155 formed in the snap elements 158 and 160 extending from the inner face of the back plate 18. Housing 12 is thus snap-fitted to the back plate 18 to mount substantial portions of the weight of the combo fixture 10 in tension. Angled ramps 161 and 163 provide lead-ins to engage the peg elements 152 in the apertures 155.
Unit Lamp Mounting Arrangement Referring now to FIGS. 24 and 25, one of the emergency lighting unit lamp assemblies 13 is seen to comprise a lamp holder 284 having an opening 286 formed in at least one major face thereof, an arcuate swivel plate 288 having the general shape of a spherical segment and being receivable within the opening 286 and snap-fitted thereinto for swiveling motion in said opening 286, a lamp housing 290 which snap-fits onto the swivel plate 288 for movement relative to said plate 288, a parabolic reflector 292 and a lens 294. A bulb 296 preferably comprising a T5 wedge base incandescent lamp manufactured by the General Electric Corporation is mounted to the lamp housing 290 and is activated on failure of AC line voltage and driven by DC power supplied by the battery 30, the battery 162 or a Ni--Cd battery as aforesaid. The structure of one of the assemblies 13 sufficies for description of any other one of the assemblies 13 since the assemblies are essentially identical.
Electrical Systems Referring now to FIGS. 12 and 28, the circuitry employed in the incandescent embodiment of the invention is shown. The circuit is disclosed in co-pending U.S. patent application Ser. No. 08/519,804, filed Aug. 28, 1995, by James C. Johnson, and entitled Emergency Lighting Battery Charging Circuit, the pending application for patent being assigned to the assignee of the present application for patent. The disclosure of Ser. No. 08/519,804 is incorporated hereinto by reference. FIG. 28 comprises a wiring diagram which particularly shows the use of a single pole battery connector 370 used with a lead-acid battery such as the battery 30. When the Ni--Cd battery is used as seen in FIG. 28, a polarized battery connector 372 is utilized. FIG. 13 illustrates mounting of the LED arrays 28 on opposite sides of the housing 12. The arrays 28 provide non-emergency lighting of the indicia 20 on AC mains power. When the arrays 28 are used, the AC lamps 24 are eliminated.
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INDUSTRIALE COMMERCIALE IMMOBILIARE BOCCARA S.p.A.Emergency sign with signal of selfwinding type for roads, construction site signals and the like* Cited by examinerNon-Patent CitationsReference1"Contractor's Choice Emergency Lighting Unit", Model CC-2, Sure-Lites--admitted prior art.2"Finally, 5-Minute Installation at an Affordable Price", Emergency Lighting News, Lithonia Lighting Publication--admitted prior art.3"Model UMB EX Fluorescent Exit", Sure-Lites, Apr. 1985.4"Sales Update", Halo Sure-Lites, Aug. 31, 1993.5"Series Exit Combination", AtLite Lighting Equipment Inc.--admitted prior art.6"Sure-Lights Emergency Lighting", UMB-EX Model, 1984.7"Universal Standard Exits Double PL Fluorescent Self-Powered Lead Calcium Battery" PLX Series Brochure, Sure-Lites--admitted prior art.8 *AtLite Lighting Equipment Series LCNY8 Exit Sign/Emergency Light Product brochure admitted prior art.9AtLite Lighting Equipment Series LCNY8 Exit Sign/Emergency Light Product brochure--admitted prior art.10Brochure "Spectrum Series--Emergency Exit," Lithonia Emergency Systems (1987).11 *Brochure Spectrum Series Emergency Exit, Lithonia Emergency Systems (1987).12Brochure, "6 Volt Combination Emergency Light/Exit Sign--Series ED," Elan Lighting Products Division of Altus Corporation (Apr. 1982).13Brochure, "6 Volt Self-Powered Economy Exit Light--Series EP," Elan Lighting Products Division of Altus Corporation (Apr. 1982).14Brochure, "AS/AP Incandescent Series," Lithonia Emergency Lighting, p. 24, (1984).15Brochure, "Chloride . . . Life Safety Products & Systems--Total Flexibility in a Single Exit Sign," Chloride Systems (undated).16Brochure, "Chloride . . . the quality innovators--Signout Self-powered AC/DC exit signs," Chloride Systems, (Sep. 1982).17Brochure, "Dual-Lite EXITE� Simply Beautiful," Dual-Lite, Inc., (Jul. 1980).18Brochure, "Dynaray Emergency Lighting--81 Series," Electro Powerpacs Corp. (Jun. 1990).19Brochure, "ES/EP Premium Exits," Lithonia, p. 52 (1980).20Brochure, "Excalibur� Series," Dual-Lite, (undated).21Brochure, "Excite� Series" Dual-Lite, (Mar. 1988).22Brochure, "Exit-Series--Plastic Face," Lithonia Lighting, p. 64 (1971).23Brochure, "EZ-Snap� Series," Dual-Lite, (Sep. 1990).24Brochure, "Fail-Safe Exit Sign," Lithonia Lighting (1971).25Brochure, "FAS/FAP Fluorescent Series," Lithonia Emergency Lighting, p. 25, (undated).26Brochure, "Fluorescent Emergency Light Power Pack--CFP Series," Chloride Systems, pp. 11-18, (undated).27Brochure, "Installation Instructions Titan Series," (Circa 1989).28Brochure, "Introducing the New QM-EL Quantum Emergency Exit Sign," Lithonia Lighting (1992).29Brochure, "Introducing the Quantum Difference," Lithonia Emergency Systems (1989).30Brochure, "Kast Exits--Stencil or Plastic Face," Incandescent Catalog, Lithonia Lighting, Inc. p. 26 (1965).31Brochure, "Open the Door to a Spectrum� of Opportunity," Lithonia Emergency Systems, (1987).32Brochure, "Single and Dual Lamp Fluorescent AC and Emergency Universal Mounting Exit Signs," pp. 27-28, (undated).33Brochure, "Spectrum Series--Contemporary Injection Molded Emergency Exit Signs," Lithonia Emergency Systems (1987).34Brochure, "Standard and AC-DC Exit Signs--Series WX & BX," Elan Lighting Products Division of Altus Corporation (Sep. 1982).35Brochure, "The New Siltron UX Series--Extruded Aluminum Scaled Maintenance-Free Nickel Cadmium Batteries," Siltron Illumination, Inc. (undated).36Brochure, "Universal Module Exit Signs--XU Series, AC or AC/DC," Teledyne Big Beam, (Aug. 1990).37Brochure, "Universal Module Exit Signs--XU Series, AC or AC/DC," Teledyne Big Beam, (Mar. 1989).38Brochure, "Your Choice of Exit Signs Can Make a World of Difference," Lithonia Lighting (1993).39 *Brochure, 6 Volt Combination Emergency Light/Exit Sign Series ED, Elan Lighting Products Division of Altus Corporation (Apr. 1982).40 *Brochure, 6 Volt Self Powered Economy Exit Light Series EP, Elan Lighting Products Division of Altus Corporation (Apr. 1982).41 *Brochure, AS/AP Incandescent Series, Lithonia Emergency Lighting, p. 24, (1984).42 *Brochure, Chloride . . . Life Safety Products & Systems Total Flexibility in a Single Exit Sign, Chloride Systems (undated).43 *Brochure, Chloride . . . the quality innovators Signout Self powered AC/DC exit signs, Chloride Systems, (Sep. 1982).44 *Brochure, Dual Lite EXITE Simply Beautiful, Dual Lite, Inc., (Jul. 1980).45 *Brochure, Dynaray Emergency Lighting 81 Series, Electro Powerpacs Corp. (Jun. 1990).46 *Brochure, ES/EP Premium Exits, Lithonia, p. 52 (1980).47 *Brochure, Excalibur Series, Dual Lite, (undated).48 *Brochure, Excite Series Dual Lite, (Mar. 1988).49 *Brochure, Exit Series Plastic Face, Lithonia Lighting, p. 64 (1971).50 *Brochure, EZ Snap Series, Dual Lite, (Sep. 1990).51 *Brochure, Fail Safe Exit Sign, Lithonia Lighting (1971).52 *Brochure, FAS/FAP Fluorescent Series, Lithonia Emergency Lighting, p. 25, (undated).53 *Brochure, Fluorescent Emergency Light Power Pack CFP Series, Chloride Systems, pp. 11 18, (undated).54 *Brochure, Installation Instructions Titan Series, (Circa 1989).55 *Brochure, Introducing the New QM EL Quantum Emergency Exit Sign, Lithonia Lighting (1992).56 *Brochure, Introducing the Quantum Difference, Lithonia Emergency Systems (1989).57 *Brochure, Kast Exits Stencil or Plastic Face, Incandescent Catalog, Lithonia Lighting, Inc. p. 26 (1965).58 *Brochure, Open the Door to a Spectrum of Opportunity, Lithonia Emergency Systems, (1987).59 *Brochure, Single and Dual Lamp Fluorescent AC and Emergency Universal Mounting Exit Signs, pp. 27 28, (undated).60 *Brochure, Spectrum Series Contemporary Injection Molded Emergency Exit Signs, Lithonia Emergency Systems (1987).61 *Brochure, Standard and AC DC Exit Signs Series WX & BX, Elan Lighting Products Division of Altus Corporation (Sep. 1982).62 *Brochure, The New Siltron UX Series Extruded Aluminum Scaled Maintenance Free Nickel Cadmium Batteries, Siltron Illumination, Inc. (undated).63 *Brochure, Universal Module Exit Signs XU Series, AC or AC/DC, Teledyne Big Beam, (Aug. 1990).64 *Brochure, Universal Module Exit Signs XU Series, AC or AC/DC, Teledyne Big Beam, (Mar. 1989).65 *Brochure, Your Choice of Exit Signs Can Make a World of Difference, Lithonia Lighting (1993).66 *CC Series Catalog Sheet, Sure Lites depicted structure admitted prior art.67CC Series Catalog Sheet, Sure-Lites--depicted structure admitted prior art.68 *Contractor s Choice Emergency Lighting Unit , Model CC 2, Sure Lites admitted prior art.69 *CU Series Catalog Sheet, Sure Lites admitted prior art.70CU Series Catalog Sheet, Sure-Lites--admitted prior art.71Drawing, "L.A. Swivel Male," (Jul. 7, 1986).72Drawing, "Pin, Locking, Pedestal Swivel," (Mar. 30, 1989).73Drawing, "Swivel, Lamp Par 36," (Oct. 5, 1993).74 *Drawing, L.A. Swivel Male, (Jul. 7, 1986).75 *Drawing, Pin, Locking, Pedestal Swivel, (Mar. 30, 1989).76 *Drawing, Swivel, Lamp Par 36, (Oct. 5, 1993).77 *Dual Lite EXquisiTe RG Series product brochure 1988.78 *Dual Lite Metropolitan NYHX Series product brochure admitted prior art.79 *Dual Lite Metropolitan XYHX Series instructions for operation and installation Nov. 1989.80Dual-Lite EXquisiTe RG Series product brochure--1988.81Dual-Lite Metropolitan NYHX Series product brochure--admitted prior art.82Dual-Lite Metropolitan XYHX Series instructions for operation and installation--Nov. 1989.83 *Elan Lighting Product Series ED Combination Emergency Light/Exit Sign product brochure 1987.84Elan Lighting Product Series ED Combination Emergency Light/Exit Sign product brochure--1987.85 *Emergi Lite Series EXPK SOX/STX NEMA 4X Mini Systems Weatherproof, Corrosion Resistant Emergency Exit/Lighting System product brochure 1992.86Emergi-Lite Series EXPK-SOX/STX NEMA 4X Mini Systems Weatherproof, Corrosion-Resistant Emergency Exit/Lighting System product brochure--1992.87 *Exitronix LED Emergency Exit sign with Emergency Lights product brochure admitted prior art.88Exitronix LED Emergency Exit sign with Emergency Lights product brochure--admitted prior art.89 *Finally, 5 Minute Installation at an Affordable Price , Emergency Lighting News, Lithonia Lighting Publication admitted prior art.90Installation Instructions and Supplement, "Quantum� Series--Model M 120/277 Exit Signs," Lithonia Emergency Systems, (undated).91 *Installation Instructions and Supplement, Quantum Series Model M 120/277 Exit Signs, Lithonia Emergency Systems, (undated).92 *Installation Instructions for CC 2 Emergency Lighting Fixtures, Sure Lites depicted structure admitted prior art.93Installation Instructions for CC-2 Emergency Lighting Fixtures, Sure-Lites--depicted structure admitted prior art.94 *Installation Instructions for LQM 120/277 Exit Signs, Lithonia Emergency Systems.95 *Installation Instructions for QM EL Emergency Exit Signs, Lithonia Emergency Systems admitted prior art.96Installation Instructions for QM-EL Emergency Exit Signs, Lithonia Emergency Systems--admitted prior art.97Installation Instructions, "Dual-Lite EZ-SNAP� Exit Signs," (Jan. 1994).98Installation Instructions, "EZ-Snap LED Exit Signs," Dual-Lite (Jul. 1994).99Installation Instructions, "QM-EL Emergency Exit Signs," Lithonia Emergency Systems (undated).100Installation Instructions, "Spectrum Series Model MS/MP 120/277 Exit Signs," Lithonia Emergency Systems (Jul. 28, 1986).101 *Installation Instructions, Dual Lite EZ SNAP Exit Signs, (Jan. 1994).102 *Installation Instructions, EZ Snap LED Exit Signs, Dual Lite (Jul. 1994).103 *Installation Instructions, QM EL Emergency Exit Signs, Lithonia Emergency Systems (undated).104 *Installation Instructions, Spectrum Series Model MS/MP 120/277 Exit Signs, Lithonia Emergency Systems (Jul. 28, 1986).105Linn, Charles A I A, "From Frog Eyes on a Lunch Box' to Subtle, Quality Emergency Fixtures," Lighting Update, Facilities Design & Management, p. 47 (undated).106 *Linn, Charles A I A, From Frog Eyes on a Lunch Box to Subtle, Quality Emergency Fixtures, Lighting Update, Facilities Design & Management , p. 47 (undated).107 *Lithonia Quantum QM EL Exit sign specification sheet, Lithonia Lighting, 1992, REV Nov. 1994.108 *Model UMB EX Fluorescent Exit , Sure Lites, Apr. 1985.109One page of photographs, (Cam Attachment (Long)) shown in Drawing, "Pin, Locking, Pedestal Swivel," (Mar. 30, 1989) and Brochure, Installation Instructions Titan Series (Circa 1989), listed below.110 *One page of photographs, (Cam Attachment (Long)) shown in Drawing, Pin, Locking, Pedestal Swivel, (Mar. 30, 1989) and Brochure, Installation Instructions Titan Series (Circa 1989), listed below.111One page of photographs, canopy housing shown in Brochure, "Introducing the Quantum Difference," Lithonia Emergency Systems (1989) listed below.112 *One page of photographs, canopy housing shown in Brochure, Introducing the Quantum Difference, Lithonia Emergency Systems (1989) listed below.113One page of photographs, conaopy/backplate shown in Brochure, "Dual-Lite Excite� Simply Beautiful," Dual-Lite, Inc. (Jul. 1980) listed below.114 *One page of photographs, conaopy/backplate shown in Brochure, Dual Lite Excite Simply Beautiful, Dual Lite, Inc. (Jul. 1980) listed below.115One page of photographs, Lithonia Lighting Systems Emergency Exit Sign as shown in Brochure, "Spectrum Series--Emergency Exit," Lithonia Emergency Systems (1987) listed below.116 *One page of photographs, Lithonia Lighting Systems Emergency Exit Sign as shown in Brochure, Spectrum Series Emergency Exit, Lithonia Emergency Systems (1987) listed below.117One page of photographs, Lithonia Lighting Systems Emergency Exit Sign with Chevrons as shown in Brochure, "Introducing the New QM-EL Quantum Emergency Exit Sign," Lithonia Lighting (1992) listed below (Chevron Sign).118 *One page of photographs, Lithonia Lighting Systems Emergency Exit Sign with Chevrons as shown in Brochure, Introducing the New QM EL Quantum Emergency Exit Sign, Lithonia Lighting (1992) listed below (Chevron Sign).119 *One page of photographs, Model KSR LED EZ Snap Series Exit Sign, Dual Lite (Oct. 26, 1994) ( Dual Lite Sign ) as shown in Installation Instructions, E Snap LED Exit Signs, Dual Lite (Jul. 1994) listed below.120One page of photographs, Model KSR-LED EZ Snap Series Exit Sign, Dual Lite (Oct. 26, 1994) ("Dual Lite Sign") as shown in Installation Instructions, E Snap LED Exit Signs, Dual-Lite (Jul. 1994) listed below.121 *Pathway NEMA 4X LED Exit sign product brochure Oct. 1995.122Pathway NEMA 4X LED Exit sign product brochure--Oct. 1995.123 *Photograph No. 20 depicting the Emergi Lite EXPK Series Product admitted prior art.124Photograph No. 20 depicting the Emergi-Lite EXPK Series Product--admitted prior art.125 *Photograph No. 21 depicting the Emergi Lite EXPK Series Product admitted prior art.126Photograph No. 21 depicting the Emergi-Lite EXPK Series Product--admitted prior art.127 *Photograph No. 22 depicting the Emergi Lite EXPK Series Product admitted prior art.128Photograph No. 22 depicting the Emergi-Lite EXPK Series Product--admitted prior art.129 *Photograph No. 23 depicting the Emergi Lite EXPK Series Product admitted prior art.130Photograph No. 23 depicting the Emergi-Lite EXPK Series Product--admitted prior art.131 *Photograph No. 24 depicting the Emergi Lite EXPK Series Product admitted prior art.132Photograph No. 24 depicting the Emergi-Lite EXPK Series Product--admitted prior art.133 *Photograph No. 25 depicting the Emergi Lite EXPK Series Product admitted prior art.134Photograph No. 25 depicting the Emergi-Lite EXPK Series Product--admitted prior art.135 *Photograph No. 26 depicting the Emergi Lite EXPK Series Product admitted prior art.136Photograph No. 26 depicting the Emergi-Lite EXPK Series Product--admitted prior art.137 *Photograph No. 27 depicting the Emergi Lite EXPK Series Product admitted prior art.138Photograph No. 27 depicting the Emergi-Lite EXPK Series Product--admitted prior art.139 *Photograph No. 28 depicting the Emergi Lite EXPK Series Product admitted prior art.140Photograph No. 28 depicting the Emergi-Lite EXPK Series Product--admitted prior art.141 *Photograph No. 31 depicting the Elan EEDA unit admitted prior art.142Photograph No. 31 depicting the Elan EEDA unit--admitted prior art.143 *Photograph No. 32 depicting the Elan EEDA unit admitted prior art.144Photograph No. 32 depicting the Elan EEDA unit--admitted prior art.145 *Photograph No. 33 depicting the Elan EEDA unit admitted prior art.146Photograph No. 33 depicting the Elan EEDA unit--admitted prior art.147 *Photograph No. 34 depicting the Elan EEDA unit admitted prior art.148Photograph No. 34 depicting the Elan EEDA unit--admitted prior art.149 *Photograph No. 35 depicting the Elan EEDA unit admitted prior art.150Photograph No. 35 depicting the Elan EEDA unit--admitted prior art.151 *Photograph No. 36 depicting the Elan EEDA unit admitted prior art.152Photograph No. 36 depicting the Elan EEDA unit--admitted prior art.153 *Photograph No. 37 depicting the Elan EEDA unit admitted prior art.154Photograph No. 37 depicting the Elan EEDA unit--admitted prior art.155 *Prescolite Emergency System NEX Series exit sign product brochure admitted prior art.156Prescolite Emergency System NEX Series exit sign product brochure--admitted prior art.157 *Sales Update , Halo Sure Lites, Aug. 31, 1993.158 *Series Exit Combination , AtLite Lighting Equipment Inc. admitted prior art.159 *Sure Lights Emergency Lighting , UMB EX Model, 1984.160 *Universal Standard Exits Double PL Fluorescent Self Powered Lead Calcium Battery PLX Series Brochure, Sure Lites admitted prior art.161 *YorkLite Designer Exit Light product brochure 1989.162YorkLite Designer Exit Light product brochure--1989.* Cited by examinerReferenced byCiting PatentFiling datePublication dateApplicantTitleUS6309085 *Apr 26, 2000Oct 30, 2001Best Lighting Products, Inc.Lamp support for emergency light fixtureUS6472994 *May 23, 2000Oct 29, 2002Reed TatorEmergency guidance systemUS6499866 *Oct 31, 2000Dec 31, 2002Acuity Brands, Inc.Emergency lighting unit/exit sign combinationUS6539657May 9, 2001Apr 1, 2003Genlyte Thomas Group LlcUniversal edge-lit exit 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(FORMERLY KNOWN AS L & C SPINCFree format text: NUNC PRO TUNC ASSIGNMENT;ASSIGNOR:NSI ENTERPRISES, INC. (NOW KNOWN AS NATIONAL SERVICE INDUSTRIES, INC.);REEL/FRAME:012506/0907Effective date: 20020228Free format text: NUNC PRO TUNC ASSIGNMENT;ASSIGNOR:NSI ENTERPRISES, INC. (NOW KNOWN AS NATIONAL SERVICE INDUSTRIES, INC.) /AR;REEL/FRAME:012506/0907Aug 12, 1998ASAssignmentOwner name: NSI ENTERPRISES, INC., GEORGIAFree format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:LOGAN, MARK C.;MASTERS, ANDREW EDWARD;HULL, EDWIN LEWIS;REEL/FRAME:009391/0229;SIGNING DATES FROM 19980807 TO 19980810RotateOriginal ImageGoogle Home - Sitemap - USPTO Bulk Downloads - Privacy Policy - Terms of Service - About Google Patents - Send FeedbackData provided by IFI CLAIMS Patent Services©2012 Google