With Movable Focusing Element Patents (Class 362/187)
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Patent number: 6702452Abstract: A xenon arc search lamp has a lamp beam focused by relative movement of a reflector by advancing or retracting it along its optical axis of symmetry on which the lamp is aligned. The battery and lamp assemblies are field replaceable without tools. The beam output is usable with a combination of filters to allow the most varied intensity and wavelengths for a particular application, such as smoke filled environments, infrared illuminations and underwater illuminations. The xenon arc lamp is oriented within the searchlight with respect to the reflector to provide the most uniform field of illumination on which the lamp is capable, namely with the anode of the lamp turned away from the forward beam direction in the reflector.Type: GrantFiled: November 15, 1999Date of Patent: March 9, 2004Assignee: Xenonics, Inc.Inventors: Gregory Z. Jigamian, George Pelling, Goran Forschager, Jeffrey P. Kennedy
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Publication number: 20040027824Abstract: A xenon arc searchlight or illumination system incorporates a high frequency/high efficiency electronic circuit that allows lamp ballasting and charging of the system battery to occur over a wide range of external DC power supplies. The tolerance to variations in the system battery voltage as well as external battery voltage are increased by providing logic control of the converter circuit through a programmed logic device. The intensity of the arc lamp is smoothly decreased or increased in a continuous manner from a maximum intensity to a minimum intensity beam. Ignition of the lamp at its minimum illumination levels is thereby permitted. The xenon arc lamp is uniquely oriented within the searchlight with respect to the reflector to provide the most concentrated and convergent field of illumination on which the lamp is capable, namely with the anode of the lamp turned away from the forward beam direction in the reflector.Type: ApplicationFiled: April 14, 2003Publication date: February 12, 2004Inventors: Gregory Z. Jigamian, George Pelling, Goran Forschager, Jeffrey P. Kennedy
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Patent number: 6682203Abstract: A flashlight includes a conductive barrel, a lamp unit, a connecting device and a tail cap unit. The connecting device includes a conductive ring, an insulator seat, a conductive biasing member and a positioning cap. The biasing member is disposed in a retaining hole in the insulator seat, and is prevented from removal from the retaining hole by the positioning cap.Type: GrantFiled: June 14, 2002Date of Patent: January 27, 2004Inventor: Wen-Chin Shiau
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Publication number: 20030231492Abstract: A flashlight includes a conductive barrel, a lamp unit, a connecting device and a tail cap unit. The connecting device includes a conductive ring, an insulator seat, a conductive biasing member and a positioning cap. The biasing member is disposed in a retaining hole in the insulator seat, and is prevented from removal from the retaining hole by the positioning cap.Type: ApplicationFiled: June 14, 2002Publication date: December 18, 2003Inventor: Wen-Chin Shiau
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Publication number: 20030210543Abstract: A flashlight comprises a housing having, for example, a tapered portion and a hole at a forward end thereof with a flexible/bendable extension including a solid state light source extending through the hole at the forward end thereof. A switch, preferably in a tail cap, selectively connects the solid state light source and at least one battery in the housing in circuit for causing the solid state light source to produce light. The flexible extension preferably makes electrical contact with the housing and/or preferably includes an insulating cover having an end retained in the housing.Type: ApplicationFiled: May 13, 2002Publication date: November 13, 2003Inventors: Raymond L. Sharrah, Robert A. Kline
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Patent number: 6626555Abstract: A portable illumination device for illuminating a target zone includes an outer frame having illumination means disposed at least partially therein, and attachment means for removably attaching the illumination device through desired objects, with the attachment means being formed integral with the outer frame. In a particular embodiment, the portable illumination device includes multiple light emitting diodes which are specifically positioned and directed to illuminate distinct target zones. The portable illumination device may be removably attached to a variety of regularly and irregularly shaped objects.Type: GrantFiled: December 4, 2000Date of Patent: September 30, 2003Inventor: Rob Yaeger
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Patent number: 6623141Abstract: A portable reading light device utilizing an LEDs as the source of light mounted in a housing having a single lens through which light from the LEDs is projected, the power to the LEDs being controlled by Pulse Width Modulation.Type: GrantFiled: December 16, 2002Date of Patent: September 23, 2003Inventor: Robert A. Lehrer
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Publication number: 20030147237Abstract: A flashlight includes a handle, a chamber or body for holding a power source, lens, a lens material, and a plurality of LED lamps. The construction and arrangement of the present invention provides for variability of focus of the light propagating from the lamps.Type: ApplicationFiled: January 31, 2003Publication date: August 7, 2003Inventor: Christopher Lee Halasz
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Patent number: 6595656Abstract: A cabin lamp used in, for instance, an airplane having an LED module that is attached to a lamp housing and connected via a connector to a feeder element provided in the lamp housing. The LED module has a printed circuit board and a plurality of reflectors that are installed in a frame-shaped bezel detachably attached to a front end portion of the lamp housing. The printed circuit board is mounted with a plurality of light emitting diodes (LEDs), and the reflectors surround each of the LEDs so as to reflect the light from the LEDs substantially forward.Type: GrantFiled: October 12, 2001Date of Patent: July 22, 2003Assignee: Koito Manufacturing Co., Ltd.Inventor: Takashi Yoda
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Publication number: 20030058637Abstract: A detachable lamp for hand tool is disclosed to include a. first lamp unit, a second lamp unit, and a mounting unit connected between the lamp units and adapted to secure the lamp units to the metal body of a hand tool, each lamp unit having a lamp circuit assembly formed of a battery, a conductor, a switch, and a lamp bulb, the mounting unit having a fixed magnetic member adapted to secure the detachable lamp to the metal body of a hand tool by magnetic attraction.Type: ApplicationFiled: July 29, 2002Publication date: March 27, 2003Inventor: Chih-Ching Hsien
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Publication number: 20020154498Abstract: A non-lethal method and devices for dispersing nuisance birds from a preselected area. Such nuisance birds disrupt many activities such as the steady flow of safely moving aircraft on runways and adjacent thereto, growing crops on farmland, playing golf and the use of the interior of large open buildings. The present method utilizes a series of bright light sources that are positioned adjacent the area from which the birds are to be dispersed. The light sources are activated to produce one or more beams of bright light that are moved in such a manner to produce a pattern of bright light in the vicinity of the birds to be dispersed. This action causes the birds to become sufficiently startled and disoriented so as to disperse these nuisance birds from the area to be cleared.Type: ApplicationFiled: June 20, 2002Publication date: October 24, 2002Applicant: Science & Engineering Associates, Inc.Inventors: Eric J. Cramer, Michael D. Tocci
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Patent number: 6461024Abstract: A reading light for a vehicle interior having a light source arranged in a light fixture housing and a lens covering the housing opening and placed in front of the light source in the direction of its light emission. The reading light system includes a second lens and a first lens between the light source and the second lens.Type: GrantFiled: December 19, 2000Date of Patent: October 8, 2002Assignee: Hella Aerospace GmbHInventors: Stefan Becker, Andre Hessling-Von Heimendahl, Rico Schulz
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Patent number: 6461015Abstract: A flashing light source mounted to rotate or fixed to the top of a hat or helmet. The light provided shines out throughout a full 360 degree circle around the wearer to signal and warn people of the presence of the wearer or of danger. In a preferred embodiment the lamp may be a single lamp formed as a circular xenon flash lamp or a bulb or flash tube with a reflector that rotates to traverse the entire 360 degree circle around the wearer.Type: GrantFiled: March 20, 2000Date of Patent: October 8, 2002Inventor: Charles D. Welch
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Patent number: 6422717Abstract: The outdoor lighting comprises a stem, a socket disposed in the top of the stem for retaining a halogen lamp, a socket housing, a diffuser lens and a reflector top. The socket housing has a lower cylindrical portion having a first inner diameter for fitting over the outer diameter of the upper part of the stem, a second cylindrical portion having a second inner diameter larger than the first inner diameter adapted to closely fit over the outer diameter of the cylindrical diffuser lens. The lower cylindrical portion of the socket housing has a slot extending upward from its bottom edge with a width greater than a diameter of a locking screw that is screwed into a bore in the side of the stem.Type: GrantFiled: September 7, 2000Date of Patent: July 23, 2002Inventor: Joshua Beadle
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Patent number: 6357892Abstract: The outdoor lighting comprises a stem, a socket disposed in the top of the stem for retaining a halogen lamp, a socket housing, a diffuser lens and a reflector top. The socket housing has a lower cylindrical portion having a first inner diameter for fitting over the outer diameter of the upper part of the stem, a second cylindrical portion having a second inner diameter larger than the first inner diameter adapted to closely fit over the outer diameter of the cylindrical diffuser lens. The lower cylindrical portion of the socket housing has a slot extending upward from its bottom edge with a width greater than a diameter of a locking screw that is screwed into a bore in the side of the stem.Type: GrantFiled: March 28, 2000Date of Patent: March 19, 2002Inventor: Joshua Beadle
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Patent number: 6354715Abstract: A flashlight in accordance with the present invention includes a chamber, end cap, head assembly and lamp holder assembly. The end cap includes a bowed tripod portion to facilitate standing the flashlight on a flat surface. The head assembly includes a reflector and a lens. In one embodiment of the invention, the head assembly includes an elliptical reflector. In accordance with another embodiment of the present invention, the flashlight having a elliptical reflector is matched with a negative or planar lens. In accordance with another embodiment of the present invention, the head assembly includes an hyperbolic reflector. In accordance with another embodiment of the present invention, the flashlight having a hyperbolic reflector is matched with a positive or planar lens. In accordance with another aspect of the present invention, the flashlight includes electrode connections which prevent the conduction of electrical energy from batteries which are improperly aligned within the flashlight.Type: GrantFiled: January 26, 1998Date of Patent: March 12, 2002Assignee: Bison Sportslights, Inc.Inventors: Stephen Joseph Halasz, Christopher Lee Halasz, Stephen Sandor Halasz
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Publication number: 20020018343Abstract: An underwater flashlight has an adjustable focusing beam and a waterproof battery pack which can be removably changed underwater. The flashlight includes a watertight housing having a slidably mounted lamp therein slidable by an external sliding focus member having a permanent magnet mounted therein. The permanent magnet moves an internal sliding focusing member also having a magnet therein coacting with the external magnet. The slidable inside focusing member is connected by a link to the lamp for moving the lamp into and out of a reflector when focusing the lamp. An on/off switch is attached to the slidable outside focusing member and has a magnet mounted therein for actuating a pickup coil attached to the slidable inside focusing member. The flashlight includes a waterproof attachable battery pack which has a magnetic switch therein actuated by a magnet in the watertight housing of the flashlight so that the batteries do not provide an electrical connection until the contacts are brought together.Type: ApplicationFiled: August 9, 2001Publication date: February 14, 2002Inventor: Wilfried Steger
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Patent number: 6329933Abstract: A portable emergency lighting device for helicopters which transmits visible and radio signals which indicate the position of an emergency rescue area. The device has a housing with a beacon disposed on its top wall. The device also includes a battery source disposed in the housing that is rechargeable via a special adapter by an emergency vehicle using a standard 12 volt DC system. The device is easily carried to a remote location where vehicles may be unable to reach. Several lighting devices can be configured to define a landing area near the location of a patient for easy access and rescue. The device may be mounted and transported within a variety of different emergency rescue vehicles.Type: GrantFiled: January 16, 2001Date of Patent: December 11, 2001Inventor: Stephen J. Mikesic
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Patent number: 6290368Abstract: A portable reading light device utilizing an LED as the source of light mounted in a housing having a plurality of focusing mirrors mounted therein.Type: GrantFiled: May 21, 1999Date of Patent: September 18, 2001Inventor: Robert A. Lehrer
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Patent number: 6283609Abstract: The flashlight of the present invention is comprised generally of a flashlight chassis which houses energy cells, a flashlight head which houses a beam adjustment assembly, and an endcap which houses a switch assembly. The beam adjustment assembly and the switch assembly utilize printed circuit boards to support the lamp bulb and switch, respectively. The beam adjustment assembly mounts inside the flashlight head and can only be accessed and adjusted by removing the outer lens retaining ring that secures the assembly within the head. Once accessed, the bulb support of the assembly can be rotated relative to the reflector of the assembly to adjust the light focal length of the flashlight. The adjustment assembly is also provided with a shock absorber that supports the light bulb. In one embodiment, the endcap is provided with a threads to permit the flashlight to be axially attached to an expandable baton.Type: GrantFiled: October 28, 1996Date of Patent: September 4, 2001Assignee: Armament Systems and Procedures, Inc.Inventors: Kevin L. Parsons, Donald A. Keller, Clay C. Reeves
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Patent number: 6206543Abstract: A flashlight holder assembly for releasably receiving a flashlight of the type having head rotatable with respect to a barrel for operation thereof. The barrel of the flashlight defines a faceted exterior surface. The holder defines a barrel support and a base. The barrel support defines a faceted internal surface and a slot which cooperate to closely receive the barrel such that the barrel is retained in the barrel support in a non-rotatable manner. The base defines a base plate to which the barrel support is secured. In one embodiment, the holder includes a clip which extends from the base plate and is positioned below the base plate and cooperates with the base plate to receive and retain the periphery of an article therein.Type: GrantFiled: November 12, 1999Date of Patent: March 27, 2001Inventor: David Vincent Henry
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Patent number: 6200001Abstract: A night light which plugs directly into an electrical outlet with a rotatable housing which swivels 360° to direct light in a desired direction. The night light includes a light bulb connected to its power source in a self-contained housing. The night light also includes a light sensor which activates and deactivates the bulb depending upon ambient light levels.Type: GrantFiled: January 15, 1998Date of Patent: March 13, 2001Assignee: Regent Lighting CorporationInventor: Au Yeung Tin Shun Victor
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Patent number: 6193388Abstract: A flashlight in accordance with the present invention includes a chamber, end cap, head assembly and lamp holder assembly. The end cap includes a bowed tripod portion to facilitate standing the flashlight on a flat surface. The head assembly includes a reflector and a lens. In one embodiment of the invention, the head assembly includes an elliptical reflector. In accordance with another embodiment of the present invention, the flashlight having a elliptical reflector is matched with a negative or planar lens. In accordance with another embodiment of the present invention, the head assembly includes an hyperbolic reflector. In accordance with another embodiment of the present invention, the flashlight having a hyperbolic reflector is matched with a positive or planar lens. In accordance with another aspect of the present invention, the flashlight includes electrode connections which prevent the conduction of electrical energy from batteries which are improperly aligned within the flashlight.Type: GrantFiled: June 18, 1998Date of Patent: February 27, 2001Assignee: Bison Sportslights, Inc.Inventors: Christopher Lee Halasz, Stephen Sandor Halasz
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Patent number: 6174071Abstract: A flashlight includes an elongate body having a front end and providing a compartment for containing a battery cell and a head assembly connected to the front end. The head assembly includes a light bulb, a reflector movable between an inner position behind the light bulb and an outer position surrounding the light bulb for light focusing, and a colored filter movable between an inner position behind the light bulb and an outer position surrounding the light bulb for light color changing. The flashlight includes a manually operated mechanism for initially moving the filter from the inner position to the outer position and subsequently moving the reflector from the inner position to the outer position.Type: GrantFiled: April 28, 1999Date of Patent: January 16, 2001Inventor: Kwong Chi Chan
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Patent number: 6170960Abstract: A miniature flashlight comprising a barrel, tailcap, head, bulb holder, bulb and an electrical circuit. The bulb holder is positioned at one end of the barrel such that the bulb extends into the head. The head includes a parabolic reflector surrounding the bulb such that the rotation of the head relative to the barrel changes the focus of the flashlight beam. A rotary switch associates the bulb holder with the barrel to control opening and closing of the electrical circuit. Rotation of the head away from the barrel closes the electrical circuit. The head is not a part of the electrical circuit and its removal exposes the bulb for substantially spherical illumination. The head assembly is removable from the barrel for use as a base into which the tailcap is inserted to stand the miniature flashlight in its “on” condition, as a lamp.Type: GrantFiled: May 5, 1999Date of Patent: January 9, 2001Assignee: MAG Instrument Inc.Inventor: Anthony Maglica
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Patent number: 6158873Abstract: An underwater light has a head assembly including a reflector, a light source located in the head assembly and movable relative to the reflector, a housing that moves relative to a slide that engages the switch such that it is twist activated. Continued twisting adjusts the position of the light source to adjust beam spread. Bearings are included in the head assembly to allow the twisting action to be effected under high pressure, while o-ring seals prevent leakage.Type: GrantFiled: October 13, 1998Date of Patent: December 12, 2000Inventor: John M. Griffiths
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Patent number: 6102553Abstract: A palm size laser indicator disk capable of adjusting the shapes of light emitted therefrom includes an adjustment ring, a disk cover, a disk, an annular lens, a laser generating component, and a plurality of connecting screws. By turning the adjustment ring, one of a plurality of patterns of high transparency and different shapes may be caused to be penetrated by the laser light to generate different light shapes.Type: GrantFiled: February 26, 1998Date of Patent: August 15, 2000Assignee: Opcom Inc.Inventor: Chih-Yu Ting
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Patent number: 6099147Abstract: A flashlight comprises a housing including a cavity adapted for receiving a battery and a reflector mounted to said housing and having a light-reflecting surface and a bore therethrough for receiving a lamp. The bore includes a circumferential groove therein and an annular ring or O-ring of resilient material in the groove. The lamp has a filament and has a pair of electrical leads at one end thereof. An electrical connector is mounted to the housing and engages the electrical leads of the lamp for holding the lamp in the bore of the reflector within the annular O-ring of resilient material for cushioning the lamp against physical shocks. Battery terminals in the cavity of the housing connect the lamp in circuit with the battery which provides electrical power for energizing the lamp filament to produce light.Type: GrantFiled: November 19, 1998Date of Patent: August 8, 2000Assignee: Streamlight, Inc.Inventor: Peter John Ziegenfuss
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Patent number: 6056413Abstract: A cap lamp (5) includes a baseball-style cap (6) having a visor (16) with an underside substantially defined by a concave visor reflector (22). A light source (24) is pivotally supported under the visor for directing light at selectively adjustable angles. A first hood (36A) partially surrounds the light source for shading a user's face from light coming directly from the light source. The hood has an upward lateral opening (39) to emit light toward the visor reflector for flooding the immediate vicinity of the user with visor reflected light. A frontal opening (42) of the hood is provided for emitting a light beam forward of the visor. A concave hood reflector (40), within the hood, is provided for increasing the light directed to and reflected by the visor reflector. A second hood (36B) is supported to rotate about the first hood between open and closed positions for selectively inhibiting light communication with the visor reflector.Type: GrantFiled: December 29, 1997Date of Patent: May 2, 2000Inventor: Charles L. Urso
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Patent number: 6045236Abstract: The present invention is directed to an on/off switch for a flashlight having a reflector secured against axial motion. The reflector has a central opening. The flashlight includes a bulb with a base having an outer cylindrical electrical terminal. The bulb extends through the central opening of the reflector. The switch includes a bulb holder, with the bulb secured in and moving with the bulb holder. The switch also includes an electrical contact disposed in the flashlight so as to be adjacent and biased away from the cylindrical electrical terminal of the bulb. The switch also includes a ring rotatably disposed in the flashlight. The ring is mechanically linked to the bulb holder and includes an element disposed adjacent the electrical contact.Type: GrantFiled: August 9, 1996Date of Patent: April 4, 2000Assignee: Black & Decker Inc.Inventors: Leo K. F. Cheng, Eddie Y. H. Lo, Victer Au-Yeung Tin Shun, Roger Q. Smith
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Patent number: 6027226Abstract: A variable-focusing head cap assembly is used in a flashlight having a barrel and a lamp mounted on one end of the barrel. The variable-focusing head cap assembly includes a tubular coupling sleeve, a parabolic reflector, a cap member, and a generally C-shaped resilient friction ring. The C-shaped resilient friction ring is received in an annular receiving groove that is formed in one of the inner peripheral surface of a cap body of the cap member and the outer peripheral surface of the coupling sleeve, and is in friction contact with the other one of the inner peripheral surface of a cap body of the cap member and the outer peripheral surface of the coupling sleeve so as to retain the cap body at a desired axial position along the coupling sleeve and obtain a desired focusing effect.Type: GrantFiled: November 12, 1998Date of Patent: February 22, 2000Inventor: Shoei-Shuh Shiau
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Patent number: 6022127Abstract: A novel multi-function switching head for use with handheld illumination devices for switching electrical current to multiple illumination sources and for selecting from multiple battery power supplies.Type: GrantFiled: July 11, 1998Date of Patent: February 8, 2000Inventor: Mark Howard Krietzman
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Patent number: 6022126Abstract: The laser pointer of this invention includes: a laser pointer main body for emitting a visible laser beam; and a deflection optical element disposed on the central axis of the laser beam and adapted to deflect the direction along which the emitted laser beam passes.Type: GrantFiled: June 26, 1997Date of Patent: February 8, 2000Assignee: Sekinos Co., Ltd.Inventors: Kumajiro Sekine, Takeshi Kobayashi
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Patent number: 6007218Abstract: A self-contained laser illuminator module for primary use in a laser security device which is adapted to produce an optimally effective and eye-safe laser beam for use as a laser visual countermeasure. The laser illuminator module includes control electronics having a high-power laser adapted to generate a preselected wavelength and intensity, a fiber optic means in optical communication with the control electronics, and a means for mounting to a security device having a collimating lens. The present invention generates a laser beam to illuminate or create temporary visual impairment of a potential adversary which results in hesitation, delay, distraction, surrender or retreat.Type: GrantFiled: November 10, 1997Date of Patent: December 28, 1999Assignee: Science & Engineering Associates, Inc.Inventors: John D. German, Eric J. Cramer, Michael D. Tocci, Brian K. Spielbusch, Steven J. Saggese
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Patent number: 5954416Abstract: An apparatus for generating a beam of light with a perceived beam having constant brightness comprising a flashlight apparatus having a parabolically shaped reflector, and the flashlight apparatus also having a equal-sided rotating hexagon present along the axis of the reflector. The outside surfaces of the hexagon are covered with a mirror-like surface for deflecting the light rays emanating from a light source located at the focus of a reflector in a changing pattern as the hexagon rotates about its axis, which is perpendicular to the reflector axis. The changing light pattern eliminates a dark area of the beam from the flashlight as the changing pattern directs light rays across the dark area as the hexagon rotates.Type: GrantFiled: March 3, 1998Date of Patent: September 21, 1999Assignee: Phillips Plastics CorporationInventor: Francis Peterson
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Patent number: 5865525Abstract: A slide focus flashlight has a container with an aperture therein, a lamp disposed within the container, a reflector disposed within the container, and an actuator disposed in the opening of the container for sliding therein and having a first angled surface. A conductive shaft is disposed within the container, and a slide interface is coupled to the conductive shaft. The slide interface has a second angled surface for sliding against the first angled surface of the actuator. A power switch is provided for selectively energizing the lamp. The slide interface, actuator and power switch allow for single-handed focusing and energizing of the flashlight.Type: GrantFiled: April 9, 1997Date of Patent: February 2, 1999Assignee: Nordic Technologies, Inc.Inventors: Gary W. Kibler, Dick E. Davis
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Patent number: 5826971Abstract: A method and apparatus for selectively focusing a flashlight are provided. The apparatus includes a flashlight (10) having a flashlight body (12) with a cavity (32) therein and further having an actuator-receiving opening (204) through a portion of the flashlight body. A reflector (90) for reflecting light and a lamp (24) for producing light are disposed within the cavity (32). A housing assembly (302) is disposed within the cavity and moveable therein. The housing assembly includes a housing (34). An actuator (30) extends into the actuator-receiving opening and couples to the housing. The lamp and reflector are associated with the housing assembly whereby movement of the housing assembly allows relative movement of the lamp and the reflector to allow focusing of light from the lamp when an operator causes the actuator to move.Type: GrantFiled: July 24, 1996Date of Patent: October 27, 1998Assignee: Nordic Lights, Inc.Inventor: Gary W. Kibler
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Patent number: 5826972Abstract: An electric torch comprising an aluminum barrel for accommodating a battery cell and having an open front end to provide a seat of a reduced cross-sectional size, a head piece releasably connected onto the body front end, a hollow reflector disposed within the head piece, and a light bulb. The light bulb has an electrically-conducting body sitting within the seat for direct electrical contact therewith and a glass envelope entering into the reflector for light reflection.Type: GrantFiled: December 17, 1996Date of Patent: October 27, 1998Inventor: Si Fu Chiu
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Patent number: 5816688Abstract: A multi-functional lighting apparatus is provided, the apparatus is generally comprised of a tubular body, a head portion and a rear portion. The tubular body has a first cylinder chamber at forward end containing a slidable receptacle therein and engaged with an elongate ring contact and incorporated with a bent L-shaped first tip contact and a slant second tip contact which is engageable with the first tip contact and the bulb.Type: GrantFiled: September 20, 1996Date of Patent: October 6, 1998Inventor: Chen Shui-Shang
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Patent number: 5806962Abstract: An adjustable beam flashlight according to this invention is based in part on the teachings of Ellion U.S. Pat. Nos. 4,984,140 and 5,459,649 but adds important new concepts to describe a theoretical reflector having a broad beam that is uniformly illuminated with no bright and dull rings and no unilluminated center disc. This theoretical reflector requires manufacturing tolerances that are not available with conventional machine tools. A method is described to modify this theoretical reflector so that a practical reflector can be produced using existing machine tools. In one embodiment, the practical reflector surface is made up of a multitude of small concentric cones which reflect the light in the form of small fans. A uniformly illuminated broad beam is formed by fabricating specific groups of these cones of varying size and slope to form the reflector surface in order to project the light so as to overlap the required number of fans to produce the uniformity of illumination.Type: GrantFiled: May 1, 1996Date of Patent: September 15, 1998Inventor: M. Edmund Ellion
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Patent number: 5795050Abstract: A light assembly for a bicycle that comprises a power source, configured to be positioned within either the handlebars of the bicycle or bar end members attached to the handlebars of the bicycle, and a light source that is adjustable by the user. In one embodiment, the light assembly is positioned at either end of the handlebars and are independently adjustable about two orthogonal axes to allow the bicyclist to illuminate two different regions in the path of travel of the bicycle. In a second embodiment, the light assembly is positioned at the outer end of either of the bar end members attached to the handlebars and are independently adjustable about two orthogonal axes to allow the bicyclist to illuminate two different regions in the path of travel of the bicycle.Type: GrantFiled: August 6, 1996Date of Patent: August 18, 1998Inventor: Russell E. Carter
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Patent number: 5765937Abstract: A multi-function lighting device includes a barrel, a lamp mounted on one end of the barrel, a tubular coupling member secured around one end of the barrel, a tubular sleeve member made of a light transmittable material and sleeved slidably on the coupling member, and a head cap secured to one end of the sleeve member and provided with a reflector therein. The sleeve member is shiftable with respect to the coupling member between a first position, wherein the lamp extends into the reflector so that light may be directed axially, and a second position, wherein the lamp is located in the sleeve member so that light can pass transversely through the sleeve member. The barrel houses a battery therein, and a switch assembly is mounted in the barrel and is connected electrically to the battery and the lamp. The switch assembly is operable so as to interconnect electrically and selectively the battery and the lamp and so as to cause the lamp to generate one of a constant light output and a blinking light output.Type: GrantFiled: November 27, 1995Date of Patent: June 16, 1998Inventor: Shoei-Shuh Shiau
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Patent number: 5733029Abstract: An illumination apparatus for illuminating a medical diagnostic instrument with a light source that is located remotely from the instrument and that is equipped with a fiberoptic cable having a threaded connector. The instrument to be illuminated includes a light cavity designed to receive an electrically powered light source. The illumination apparatus includes an adapter having a first coupling structure for engaging said threaded connector and a second coupling structure for engaging the instrument in proximity to said light cavity. When so engaged, the apparatus fiberoptically illuminates the light cavity in place of said light source.Type: GrantFiled: September 22, 1995Date of Patent: March 31, 1998Assignee: Welch Allyn, Inc.Inventor: Richard A. Monroe
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Patent number: 5722762Abstract: An illumination device for mounting on the head of a user including a frame having a cross member and a pair of rearwardly extending temple members attached to opposite ends of the cross member. At least one focusable light assembly is rotatably mounted to the frame and includes a light source for emitting light. The light assembly is adjustable by the user for varying the vergence and direction of the light emitted from the light source.Type: GrantFiled: July 18, 1996Date of Patent: March 3, 1998Inventor: David B. Soll
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Patent number: 5717276Abstract: A flexible light includes a lens cap having a light bulb received therein, a bulb holder threadingly received the light bulb therein and threadingly engaging to the lens cap, a bellows having a first end which snugly engages with the bulb holder and a second end which snugly engages with a holding portion, wherein a flexible element is inserted within the bellows such that the flexible light is able to bend in great extent.Type: GrantFiled: September 13, 1996Date of Patent: February 10, 1998Inventor: Chin-tien Hsu
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Patent number: 5713656Abstract: A screw driver includes a handle having a casing for receiving batteries. A switch is electrically connected to the battery. A socket is engaged in the handle for receiving a lamp. A transparent block is engaged in the front end of the handle for engaging with a driving tool. A ferrule is rotatably engaged to the handle for engaging with and for retaining the transparent block in place. A reflector is engaged around the lamp and a spring may bias may bias the reflector away from the socket for adjusting the light beam of the lamp.Type: GrantFiled: September 25, 1996Date of Patent: February 3, 1998Inventor: Ching Chou Lin
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Patent number: 5685636Abstract: This invention provides a fixed or portable non-lethal laser security device and method for use of such device as a non-damaging weapon and security system to provides warning and visual impairment upon an intruder. At a predetermined laser wavelength and intensity, this invention utilizes laser light in the visible portion of the wavelength spectrum to create temporary visual impairment, hesitation, delay, distraction, and reductions in combat and functional effectiveness through the effects of glare, flashblind, and psychological impact. The preferred embodiment of the laser security device in the present invention involves the use of laser technology with a remotely operated security system.Type: GrantFiled: August 23, 1995Date of Patent: November 11, 1997Assignee: Science and Engineering Associates, Inc.Inventor: John D. German
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Patent number: 5651607Abstract: An improved focusing flashlight is provided which includes a metallic cylinder having a collar at the front and adapted to receive a conducting cartridge and a seat insulator therein. The conducting cartridge has an internal thread formed in a centrally disposed hole and a flange extending around the perimeter of the hole, adapted to be received within a corresponding sleeve barrel extending from the seat insulator, around the perimeter of a centrally disposed hole. The internal threads of the conducting cartridge are adapted to threadedly engage a bulb.Type: GrantFiled: February 2, 1996Date of Patent: July 29, 1997Inventor: Hsien-Te Hou
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Patent number: 5630661Abstract: A rechargeable metal arc flashlight having a light generating assembly which utilizes a metal halide arc lamp mounted inside an elliptical reflector for focusing emitted light onto a diffusion screen. The flashlight utilizes a moveable collimating lens disposed in front of the screen to focus light from the screen into a collimated beam or a floodlight which is passed through a UV blocking filter. The flashlight includes a rechargable self-contained power source for igniting and sustaining ignition of the arc lamp.Type: GrantFiled: February 6, 1996Date of Patent: May 20, 1997Inventor: Donald P. Fox
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Patent number: RE38014Abstract: A waterproof flashlight wherein the flashlight is activated by means of a switch located in the flashlight's end cap. Another aspect of the invention being the orientation of the positive terminals of the flashlight's batteries away from the head assembly.Type: GrantFiled: May 4, 1995Date of Patent: March 4, 2003Assignee: Mag Instrument, Inc.Inventor: Lee K. Bieberstein