Positioning Means For Plural Units Patents (Class 362/238)
  • Patent number: 4803607
    Abstract: Surgical operating room lamp comprising a lamp housing (10) and at least three reflectors (24, 26, 28) with bulbs or similar lamps provided in the housing and equally spaced around the center optical axis of the lamp housing. According to the invention all reflectors are carried by a flexible diaphragm member (16) which rests at its edge against an abutment shoulder (14) in the housing. The center of the diaphragm member is axially movable by means of a control member (18, 20, 22) to be flexed so as to adjust the angular position of the reflectors simultaneously.
    Type: Grant
    Filed: January 19, 1988
    Date of Patent: February 7, 1989
    Assignee: Landstingens inkopscentral LIC, ekonomisk forening
    Inventor: Stig Jonsson
  • Patent number: 4802072
    Abstract: A direction fixture, particularly to that attached on the socket, comprises a retaining ring having an elastic access notch for retaining the electric wires of the decorative lamp series to fix the direction of the series of socket, namely, the lamps on respective socket can be arranged in a certain direction in series.
    Type: Grant
    Filed: February 19, 1987
    Date of Patent: January 31, 1989
    Inventor: Chuan F. Kau
  • Patent number: 4764851
    Abstract: A dual light source lighting fixture is made up of two identical single light source fixtures, the housings of which are identical. Each housing has one square end and each is symmetrical about an axis normal to the square end so that the single housing can be assembled into a double housing in an end to end relationship simply by removing an end cover, locking the housings together by use of a connector and covering the joint with a snap-on cover.
    Type: Grant
    Filed: February 11, 1987
    Date of Patent: August 16, 1988
    Assignee: ITC, Incorporated
    Inventor: Richard Hartmann
  • Patent number: 4744016
    Abstract: A solarium including a vertical guide-rail assembly having a casing-enclosed lower storage position and a selectively removable upper portion. A plurality of light-emitting units with cooperating reflectors mount perpendicularly across the guide-rail assembly and are displacable therealong and selectively received within the storage position.
    Type: Grant
    Filed: February 27, 1987
    Date of Patent: May 10, 1988
    Assignee: Extend Handelshus Aktiebolag
    Inventor: Jan Lindberg
  • Patent number: 4707766
    Abstract: A modular, composable lighting projector for illumination from the ground in theatres, or in photographic, motion-picture and television studios, and the like, said lighting projector consisting of a housing that shows a small window in its front side, which window incorporates the bulb-mirror set, as well as louvers for ventilation in its top side, said projector being characterized in that it comprises hinge receiving means on a back upright edge, hinge insertion means on the other back upright edge, a hooking device fastened near a lower front corner and hooking means complementary to said hooking device at a position close to the other lower front corner.
    Type: Grant
    Filed: June 5, 1985
    Date of Patent: November 17, 1987
    Assignee: Quarzcolor Ianiro S.p.A.
    Inventors: Marcello Bertozzi, Roberto Casamento
  • Patent number: 4692795
    Abstract: In a color image readout device having a plurality of light sources of different color emissions, controlled to light sequentially so that light reflected from a document irradiated by the light sources is fed to a CCD sensor to obtain a color separation signal, the plurality of light sources are arranged on a single light source support to form a single unit.
    Type: Grant
    Filed: November 14, 1985
    Date of Patent: September 8, 1987
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Motokazu Nakao
  • Patent number: 4665470
    Abstract: A decorative light and method of manufacture thereof, said light having an outer transparent tube, a pair of electrical supply wires in the tube, and a plurality of miniature lamps within the tube, the lamps being connected in series between the supply wires, and a protective dielectric material within the tube which coats the supply wires and the lamps forming a protective dielectric cushioning layer between said wires and lamps and the walls of the tube to prevent electrical failure of the decorative light tube circuit as a result of moisture, shock and vibration.
    Type: Grant
    Filed: August 13, 1986
    Date of Patent: May 12, 1987
    Assignee: Tivoli Industries, Inc.
    Inventor: Benjamin B. George, Jr.
  • Patent number: 4654765
    Abstract: The assembly includes a number of readily replaceable low voltage light bulbs; for example, of the <5 watt 24 VAC type, spaced along a pair of electrical conductors carried by an insulated strip located in a housing with a removable transparent cover. The bulbs are releasably connected to the conductors in parallel by suitable electrical contacts, with or without supporting bulb brackets so that the conductors, strip and housing can be transversely severed between adjacent bulbs to shorten the assembly. Conversely, a number of assemblies can be connected in tandem to form an elongated lighting system. The cover may have edges which clip into recesses performed in the housing for ease in closing and opening the assembly. The housing may be aluminum and the cover may be polycarbonate plastic. The assembly is simple, inexpensive, adaptable to a variety of decorative uses and is durable.
    Type: Grant
    Filed: September 23, 1985
    Date of Patent: March 31, 1987
    Inventor: Jerry H. Laidman
  • Patent number: 4628421
    Abstract: A modular low voltage light strip includes an elongated, linear housing open along an upper portion thereof which is adapted to receive an elongated, linear circuit board. The circuit board includes a plurality of spaced apertures along its length and a plurality of conductive strips on a first lower surface thereof extending the length of the circuit board. A conductive mounting spring is positioned over each aperture on a second upper surface of the circuit board, is connected in circuit with one of the conductive strips, and is adapted to receive a threaded base or socket of a lamp in providing for the secure mounting thereof upon the circuit board and its electrical connection to a respective first conductive strip. With the lamp thus engaged by a respective mounting spring, its bottom terminal is positioned within an associated circuit board aperture and in contact with a second conductive strip.
    Type: Grant
    Filed: January 23, 1986
    Date of Patent: December 9, 1986
    Inventor: Lawrence E. Saar
  • Patent number: 4569002
    Abstract: A lighting system for a motor vehicle including a plurality of replaceable, sealed lighting modules and means for mounting the modules in the vehicle in a pair of spaced-apart linear, horizontally disposed arrays. Each array possesses a maximum height of only about two inches and a width greater than the array height. All of the modules are similar and each includes a reflector with a lighting capsule mounted therein. The front of the module is enclosed by means of a optically clear cover exclusive of lens elements. A lens means is separately mounted in front of each array of lighting modules for controlling the light emitted therefrom to in turn provide both high and low beam patterns for the vehicle. Each of the arrays comprises four similar modules, resulting in a system containing a total of eight such components.
    Type: Grant
    Filed: April 10, 1984
    Date of Patent: February 4, 1986
    Assignee: GTE Products Corporation
    Inventors: George J. English, Robert E. Lvein
  • Patent number: 4544996
    Abstract: Pools and spas formed with lamp house accommodating wall conformations below normal water level are fitted with a flexible tubing lamp house containing special lamps having a safety conductor ending unconnected in the interior of the lamp envelope. The lamp energizing circuits and a grounding circuit connected to the safety conductors of the lamps are disposed in the lamp house with a water insoluable, light transmitting electrical insulating material which serves to insulate the circuits and exclude water.
    Type: Grant
    Filed: July 13, 1984
    Date of Patent: October 1, 1985
    Assignee: Tivoli Industries, Inc.
    Inventor: Benjamin B. George
  • Patent number: 4543622
    Abstract: A light bar for emergency vehicles, comprising a relatively thin flat elongate base adapted for mounting thereon a plurality of electrical and mechanical components such as lamps, a siren and the circuitry therefor and an array of holes in the base extending lengthwise of the base adapted to receive fasteners for mounting the components on the base. The holes are of such number and so arrayed as to accommodate any one of a multiplicity of component configurations. The light bar further comprises sealing means extending lengthwise of the base over the holes for sealing the holes and a plurality of fasteners threadable through the sealing means into specific holes in the array of holes for fastening selected components to the base in a predetermined configuration. The other holes in the array remain sealed by the sealing means.
    Type: Grant
    Filed: October 4, 1984
    Date of Patent: September 24, 1985
    Assignee: Public Safety Equipment, Inc.
    Inventors: W. Kenneth Menke, Danny C. Jincks
  • Patent number: 4539626
    Abstract: The invention relates to an indicator lamp and headlamp mounting for a vehicle in which the indicator lamp 1 and the headlamp 2 are mounted on opposite sides of a web 21 separating two bodywork sections by means of an alignment component 8. The headlamp is secured to the bodywork by at least two further mountings 10,11.The alignment component includes an adjustable spacing stop screw 15 which ensures a preset spacing between the indicator lamp 1 and headlamp unit 2 and alignment pins 7 are formed on the indicator lamp 1, which pins 7 project through apertures in the web 16 into holes 19 in a headlamp holding plate 20 securable to the web 16 by means of screws. The holding plate 20 has means for enabling the headlamp to be aligned both vertically and horizontally with the indicator lamp.
    Type: Grant
    Filed: November 7, 1983
    Date of Patent: September 3, 1985
    Assignee: Ford Motor Company
    Inventors: Christian Hawlitzki, Heinz Dick
  • Patent number: 4533984
    Abstract: A variable-width-beam light apparatus is provided having a lamp and reflector assembly in which a lamp is supported for selective axial displacement along a longitudinal optical axis with respect to a focal point of the reflector to enable adjustment in the width or angle of divergence of an emitted beam of light. The lamp is selectively positioned by a rotatable knob carried by a lens of the assembly and positioned exteriorly at the front of the lens for operation. The rotatable knob connects with a shaft coupled by screw threads with a lamp engaging cylinder that is axially slideable in a tubular guideway such that rotational movement is translated to longitudinal movement to effect and control axial displacement of a lamp. The lamp is resiliently biased in a forward direction with respect to the lens.
    Type: Grant
    Filed: September 7, 1982
    Date of Patent: August 6, 1985
    Inventor: James W. Gatton
  • Patent number: 4528618
    Abstract: A lamp for a picture-screen work station having a holder for a lamp body which has a reflector and a source of light, characterized by the fact that the holder is of bar shape and is displaceable in three dimensions by joints on its ends and bears two lamp bodies which are individually displaceable in three dimensions independently of each other.
    Type: Grant
    Filed: June 2, 1983
    Date of Patent: July 9, 1985
    Inventor: Hans-Ulrich Bitsch
  • Patent number: 4521831
    Abstract: A pair of lamps are mounted on either side of a protective helmet on indexing tables that permit each lamp to be independently directed at a different target. Each lamp table is slidably received within a base section so that the lamp can be easily removed from the helmet. A utility band passes between the two base sections and is held therebetween by gripping bars mounted in each base section. The band is adapted so that articles can be carried thereupon.
    Type: Grant
    Filed: January 18, 1984
    Date of Patent: June 4, 1985
    Inventor: John R. Thayer
  • Patent number: 4521839
    Abstract: A strip lighting system comprising a string of electrically connected light bulbs contained within a flexible tube. The tube is of waterproof material and is sealed at each end by a removable plug, so that the string of bulbs can be removed when necessary to be repaired or replaced.
    Type: Grant
    Filed: February 9, 1984
    Date of Patent: June 4, 1985
    Inventors: Brian A. Cook, Philip G. Quintin
  • Patent number: 4503488
    Abstract: A multiple headlamp system for vehicles, comprising at least two individual lamps having their filaments connected in electrical series. This permits the use of shorter filaments and hence smaller diameter reflector lamps, without loss of optical control or reflector efficiency, for use in modern cars having low-profile front ends for providing improved aerodynamic streamlining. In a preferred embodiment, a vehicle is provided with two sets of headlamps, each set comprising a pair of individual headlamps each containing a filament at the focal point of the reflector for achieving maximum optical control, and means for connecting the filaments of each pair in electrical series across the vehicle's battery, one lamp of the pair being designed to provide a narrow-beam "punch" light for distant viewing, and the other lamp of the pair being designed to provide a wide-angle beam "spread" light for general viewing.
    Type: Grant
    Filed: July 13, 1984
    Date of Patent: March 5, 1985
    Assignee: General Electric Company
    Inventors: Thomas F. Soules, Milan R. Vukcevich
  • Patent number: 4449169
    Abstract: Each one of a pair of swing units, for mounting the swing arm assemblies of a swing arm lamp, is formed as a relatively short substantially tubular member having a tubular mounting end of reduced outside diameter and that is provided with a circumferential groove. The reduced end of each swing unit is received by a respective mounting seat of a vertical swing bracket which mounts both swing units for rotation about a pair of predetermined axis of rotation that are spaced and parallel one to the other. A pair of threaded bolt like members are carried by the swing bracket so that an end of each threaded member can be moved from a position wherein the end projects into its respective groove, to prevent unseating of the swing unit from the bracket, but not so as to prevent rotation thereon; to a position wherein said ends are removed from the respective grooves so that the swing units can be removed from the bracket.
    Type: Grant
    Filed: October 15, 1982
    Date of Patent: May 15, 1984
    Inventor: Jerome Warshawsky
  • Patent number: 4434454
    Abstract: An active lighting system including one or more light stands each supporting a plurality of individually adjustable colored light sources, and a keyboard unit having a plurality of switches and light intensity controlling elements which are touch operated so as to enable the intensity of the various lights in the system to be selectively varied to create a rhythm-to-color display.
    Type: Grant
    Filed: February 6, 1981
    Date of Patent: February 28, 1984
    Inventor: J. Michael Day
  • Patent number: 4408265
    Abstract: A lamp assembly for containing a plurality of light emitting lamps associated with distinct light emitting areas on a lens element and associated reflectors to direct the light towards the lens element. The light reflector element is formed of an electrically conducting sheet material subdivided into a plurality of electrically isolated areas for each defined light emitting area wherein each subdivision provides separate electrical connection between an externally supplied voltage source and its associated lamp.
    Type: Grant
    Filed: April 14, 1981
    Date of Patent: October 4, 1983
    Assignee: Ford Motor Company
    Inventor: Heinz Dick
  • Patent number: 4314318
    Abstract: A light reflector, preferably for at least three different color light sources, used in a cluster arrangement, which beams the rays of the input light sources to the target or area destined for illumination in closely adjacent and parallel relation, so that the visually perceived color of the light beam is a function of the mixture of the input light source, and can be readily varied over a wide range by varying the intensity and amounts of the individual light inputs.
    Type: Grant
    Filed: September 18, 1980
    Date of Patent: February 2, 1982
    Inventor: James Dana
  • Patent number: 4272799
    Abstract: A surface floodlight assembly for use in a heliport lighting system which provides a wide-angle horizontal beam spread and a very narrow vertical beam spread. A pair of sealed beam high-intensity floodlights mounted in a case with their respective axes at a predetermined angle provide a wide horizontal angle of convergence while limiting the vertical angle. The case enclosing the floodlights has a cover including a perimeter marking light which has a lens providing a wide angle of divergence. Mounting tabs are provided on the case for securing it in place and positioning groups of the floodlight assemblies around a heliport pad such that maximum illumination is obtained over a substantial portion of the pad. To minimize glare, a shroud is incorporated into the case limiting the divergence of the floodlight beams to prevent glare. Each floodlight assembly is a complete self-contained unit including a power supply which provides varying selections of brilliance and it can be permanently mounted or be portable.
    Type: Grant
    Filed: January 29, 1979
    Date of Patent: June 9, 1981
    Inventor: James R. Downing
  • Patent number: 4254453
    Abstract: An alpha-numeric array is provided for the selective display of characters as controlled by associated character generator programming circuitry. The display array in one character format utilizes a 5.times.7 matrix array of individually operable illumination sources, LED solid state lamps for example, with programmed combinations of the individual illumination sources being operated to display the programmed characters. The display array includes a lens and front panel array having integrally formed lens areas. The lens areas of the lens and front panel array when unactuated are essentially indistinguishable from the front panel array background area thus providing improved contrast. The display array also includes a reflector array having integrally formed reflector cavities. The integrally formed reflector cavities include predetermined surface characteristics for collimating the light rays emanating from the central axis of the reflector cavities.
    Type: Grant
    Filed: August 25, 1978
    Date of Patent: March 3, 1981
    Assignee: General Instrument Corporation
    Inventors: Arthur A. Mouyard, Michael V. Hamby, Paul A. Tomaszek
  • Patent number: 4245279
    Abstract: A multilamp photoflash unit including an elongated plastic housing having a longitudinal channel therein. Within the channel is positioned a thin, flat circuit board to which are connected several (e.g. six) flashlamps arranged in a linear array. The lamps are divided into two opposing pluralities such that those in the plurality being fired are inverted during firing.
    Type: Grant
    Filed: September 4, 1979
    Date of Patent: January 13, 1981
    Assignee: GTE Products Corporation
    Inventors: Andre C. Bouchard, Donald E. Armstrong, Ronald E. Sindlinger, John W. Shaffer, Daniel W. Bricker
  • Patent number: 4245280
    Abstract: A photoflash unit comprising a linear array of flashlamps mounted on a printed circuit strip disposed within the longitudinal channel of an elongated housing member. A light-transmitting cover panel is attached to the housing member for enclosing the flashlamps. To provide structural rigidity, the cover has rectangular corner posts at each end and a transverse web at the center which engage slots in the housing and are secured by ultrasonic welding. The longitudinal edges are secured by a plurality of cylindrical posts along each side of the cover which fit into matching holes in the housing and have rivet heads formed on the ends as provided by ultrasonic heating and pressure.
    Type: Grant
    Filed: September 4, 1979
    Date of Patent: January 13, 1981
    Assignee: GTE Products Corporation
    Inventor: Donald W. Hartman
  • Patent number: 4238814
    Abstract: A photoflash unit comprising a linear array of flashlamps mounted on a printed circuit strip disposed within the longitudinal channel of an elongated housing member. A light-transmitting cover panel is attached to the housing member for enclosing the flashlamps. To prevent sympathetic ignition of adjacent lamps, the one-piece cover is molded to have integrally projecting transverse webs which function as light-attenuating partitions between respective pairs of lamps. In addition, the webs bridge the housing channel to provide structural rigidity.
    Type: Grant
    Filed: September 4, 1979
    Date of Patent: December 9, 1980
    Assignee: GTE Products Corporation
    Inventors: Daniel W. Bricker, Emery G. Audesse, John W. Shaffer, Donald W. Hartman
  • Patent number: 4225906
    Abstract: A luminaire housing body is formed with a reflector chamber closed at one side by a radiation transmitting member. At an opposite side, the housing is extended to form a socket enclosure. A lamp socket member is rotatably mounted in the socket enclosure and is structured to define spaced apart inwardly dished reflector surfaces, hereinafter referred to as concaved reflective surfaces, in each of which a lamp may be placed at a focal point and independently energized by electrical means. A reflector member is located in back of the radiation transmitting member and is formed with a socket aperture.At either side of the concaved reflector surfaces, the socket member is shaped to present tapered outer ends which can be moved into and out of the socket aperture. The arrangement of the parts is such that a de-energized lamp is constantly shielded by the tapered ends to prevent shadow or distortion when another lamp is in use.
    Type: Grant
    Filed: March 16, 1978
    Date of Patent: September 30, 1980
    Assignee: Koehler Manufacturing Company
    Inventors: John E. Gulliksen, Roy A. Guimond
  • Patent number: 4220981
    Abstract: A portable floodlighting unit of the type having an extensible mast mounted on a vehicular body for transportation and collapsible into a horizontal position on the body is provided with two collapsible masts at diagonally opposite corners of the vehicle. East mast is provided with a frame carrying a battery of floodlights. Floodlighting at high intensity on all sides of the vehicle is made possible, and if desired all the lights may be positioned to light an area at one side of the vehicle.
    Type: Grant
    Filed: April 14, 1978
    Date of Patent: September 2, 1980
    Assignee: Over-Lowe Company, Inc.
    Inventor: Herbert F. Koether
  • Patent number: 4204273
    Abstract: A flexible conductor of strip configuration including a pair of copper conductors laminated between a pair of insulating material layers, one of said layers comprising vinyl having an elastic deformation characteristic capable of taking a temporary set on deformation within its elastic limit and the other layer being of mylar, as assembled thereto a plurality of incandescent light bulbs, each having bare wire leads coated by an electrically conductive grease and means for mounting and retaining the bulbs to the conductor with the leads in electrical contact with the conductor, such means for mounting including portions of the vinyl layer overlying the leads. During assembly of the bulb leads to the conductor, the vinyl layer is pierced and portions are deformed within the elastic limit of the material to form tunnels in which the bulb wire leads are inserted.
    Type: Grant
    Filed: September 5, 1978
    Date of Patent: May 20, 1980
    Inventor: Gerald M. Goldberg
  • Patent number: 4198674
    Abstract: A lighting unit for a front corner on vehicle. There are a plurality of light housings that are screened off from each other in a light housing plate. Vertical walls defining first light housings are formed as a forwardly directed reflector as well as a sideways directed reflector. There is a second light housing in which a light source, in coaction with a backwardly directed reflector, provides a side backing light which is activated when engaging the vehicle reverse gear.
    Type: Grant
    Filed: July 20, 1977
    Date of Patent: April 15, 1980
    Assignee: Saab-Scania Aktiebolag
    Inventors: Bertil G. Ilhage, Bjorn E. A. Envall
  • Patent number: 4191989
    Abstract: A recessed interior fluorescent luminaire construction including a reversible interior ballast housing which adapts the luminaire for either four lamp or three lamp construction with the lamps lying in a horizontal plane above and parallel with the luminaire refractor. This construction further provides for minimal luminaire height and therefor requires minimal plenum space.
    Type: Grant
    Filed: February 9, 1978
    Date of Patent: March 4, 1980
    Assignee: Westinghouse Electric Corp.
    Inventors: Burford J. Page, Winfried N. Westermann
  • Patent number: 4190881
    Abstract: A preassembled and prewired crossarm assembly of high intensity discharge luminaries mountable on a light pole. The assembly includes an elongate, tubular bar that is supported on a ballast-receiving box attachable to the light pole so that the weight of the ballast box is centered on the pole. Members are employed for adjustably mounting the luminaries from the tubular bar in a spaced apart relation. Each mounting member has a wire-receiving passage means in communication with the interior of the tubular bar and an associated luminary, and aligned openings are formed in the bar and the ballast box for the disposition of electrically conductive wiring that connects the luminaries to the ballasts.
    Type: Grant
    Filed: May 12, 1978
    Date of Patent: February 26, 1980
    Assignee: Muscatine Lighting Manufacturing Co.
    Inventors: James L. Drost, Myron K. Gordin
  • Patent number: 4189709
    Abstract: A modular housing assembly for housing a vehicle warning light system and intended for mounting across the roof of a police car or other vehicle on which warning lights are required. The housing comprises a plurality of transparent plastic panels of modular construction, there being provided a plurality of front modular panel sections interconnected in side-by-side relation and a plurality of rear modular panel sections interconnected in side-by-side relation, the front and rear panel sections being connected to one another and to a common base member.
    Type: Grant
    Filed: January 13, 1978
    Date of Patent: February 19, 1980
    Assignee: Federal Signal Corporation
    Inventor: Earl W. Gosswiller
  • Patent number: 4178627
    Abstract: A lamp assembly in which the lamp housing has a plurality of light bulb sockets and a slot for receiving an electric ribbon cable. The ribbon cable consists of a laminate of dielectric material having a plurality of electrical conductors embedded therein, the conductors having contact surfaces exposed through strategically placed windows in the dielectric material of the ribbon cable. Contact means retained within the housing extend from the exposed contact surface on a specific conductor to a specific light bulb socket.
    Type: Grant
    Filed: January 5, 1978
    Date of Patent: December 11, 1979
    Assignee: Ford Aerospace & Communications Corp.
    Inventor: Erwin L. Baumann
  • Patent number: 4175280
    Abstract: In apparatus for reducing the glare of headlights of vehicles, at least one additional light is mounted adjacent to the vehicle headlights for lighting up the surroundings thereof. The additional light is mounted in a hollow body and includes reflectors mounted behind light sources and directed in all directions with the exception of the direction of travel of the vehicle, such that at least one reflector is directed parallel to the light emission surface of the vehicle headlights to floodlight the front part of the vehicle, its lateral surroundings as well as the area ahead of the vehicle.
    Type: Grant
    Filed: October 28, 1977
    Date of Patent: November 20, 1979
    Inventor: Anna Plewka
  • Patent number: 4161021
    Abstract: The flexible wire leads of several unbased miniature lamps are welded or soldered end to end in series to form a lamp string that has one end electrically connected to a rigid center wire extending upwardly from the center foot terminal of a lamp base so that, with the base fitted on a spherical or other rounded transparent bulb, the lamp string connection to the rigid wire will be near the central longitudinal axis at the opposite end of the bulb. With the other end of the lamp string held stationary, the base is twisted within the bulb to expand the lamp string, which is folded in a flat S-shape to fit through the narrow tubular base opening in the bulb, until the lamps are each positioned within the bulb at locations displaced from the central axis and inner concave reflecting surfaces. This insures myriad reflected lamp images that give the visual impression of many more lamps with greater apparent illumination though requiring only a few watts of energy.
    Type: Grant
    Filed: August 29, 1977
    Date of Patent: July 10, 1979
    Inventor: Benjamin B. George, Jr.