Patents Issued in April 24, 2001
  • Patent number: 6220686
    Abstract: In a postage printing device, a printer is employed to print postage indicia on mail pieces. The printer is preferably a noncontact printer such as an ink-jet printer. Printing occurs as the mail piece moves relative to the print head of the printer, which requires that reliable motion information (e.g. a print clock signal) be made available to the electronics driving the print head. The reliable motion is provided in a noncontact way, preferably by directing a laser beam toward the mail piece and detecting a moving speckle pattern in the light scattered from the mail piece.
    Type: Grant
    Filed: February 13, 1998
    Date of Patent: April 24, 2001
    Assignee: Ascom Hasler Mailing Systems AG
    Inventors: Manfred Lüdi, Christian Moy
  • Patent number: 6220687
    Abstract: The present invention relates to an image processing apparatus and an image output apparatus that effects an image output operation by recording on a cloth recording medium. The image processing apparatus supplies first image data as original image data to the image output apparatus, and supplies second image data, different from the first image data, to be used for processing the cloth recording medium after the image output operation. The second image data can include a pattern for cutting or sewing the cloth. The apparatus further designates information associated with the second image data, so as to form the second image data on the cloth recording medium on which the first image data is recorded. The output of the first and second data is controlled in accordance with the designated information.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: April 24, 2001
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kazuyoshi Takahashi, Takashi Watanabe, Toshiyuki Yanaka
  • Patent number: 6220688
    Abstract: A liquid jet recording head comprises a first substrate having a plurality of discharge energy generating devices formed thereon, and a second substrate having a discharge opening plate provided with a plurality of discharge openings for discharging ink, and recessed portions becoming ink flow paths conductively connected with said discharge openings, and a common liquid chamber for retaining ink to be supplied to each of said discharge openings, respectively. The ink flow paths and common liquid chamber are formed by joining the first substrate and second substrate with the discharge energy generating devices of the first substrate facing the recessed portions becoming ink flow paths of the second substrate, at the same time, the joint between the first substrate and second substrate being sealed by sealing compound, and fine grains inclusively residing on the joint between the first substrate and second substrate.
    Type: Grant
    Filed: October 14, 1997
    Date of Patent: April 24, 2001
    Assignee: Canon Kabushiki Kaisha
    Inventors: Shin Ishimatsu, Haruhiko Terai, Masafumi Takimoto, Akira Goto, Junji Tatsumi, Hiroshi Koshikawa, Toshinori Hasegawa, Ken Ikegame
  • Patent number: 6220689
    Abstract: A unitary capping system for simultaneously sealing multiple inkjet printheads during periods of inactivity has a base, a sled and an elastomeric printhead sealing structure. The base defines a cap hole and a chamber which receives the sled. The sled has a planar surface that moves between sealing and rest positions. The sealing structure has a planar web sandwiched between the sled and the base inside the chamber. The sealing structure has a lip support surrounded by the web, with the lip support having an upper surface extending through the cap hole to encircle the printhead nozzles when the sled is in the sealing position. A deflection cavity is defined between the lip support and the sled planar surface, so a portion of the lip support may collapse into the deflection cavity when sealing the associated printhead. Vent troughs linking two or more supports are defined by the sled planar surface.
    Type: Grant
    Filed: June 24, 1998
    Date of Patent: April 24, 2001
    Assignee: Hewlett-Packard Company
    Inventor: Scott D. Sturgeon
  • Patent number: 6220690
    Abstract: An ink jet printer having a mechanism to restore the nozzles by suction, thereby preventing the contamination of the nozzles of a printing head caused by waste ink and the mixing of color of ink. The ink jet printer is provided with an air releasing unit used to release a cap chamber equipped below the printing head by a cap of a capping unit. While ink droplets are discharged from the nozzles of the printing head, nozzle suction is performed and the cap chamber is released to the atmosphere through the use of the air releasing unit.
    Type: Grant
    Filed: September 29, 1999
    Date of Patent: April 24, 2001
    Assignee: NEC Corporation
    Inventor: Tetuo Wachi
  • Patent number: 6220691
    Abstract: A fiber tracking management system controls fibers clinging to an inkjet printhead in an inkjet printing mechanism, to stop these fibers from trailing across freshly printed wet ink and leaving unsightly fiber tracks. The system includes a sled which supports a fiber crushing member that contacts the printhead when the sled is in the servicing position and crushes fibers dangling from the printhead against the printhead. The printhead carriage has a datum which extends over the print zone and collects fibers from a wiper following printhead wiping. The system also has a fiber remover which removes fibers deposited along the exterior surface of the datum. The fiber remover may be a clutch actuator or other mechanism which plucks the fibers off the carriage, or a compressible pad which smashes the fibers and scrubs ink residue from the datum. A method of controlling fibers clinging to an inkjet printhead is also provided.
    Type: Grant
    Filed: April 30, 1999
    Date of Patent: April 24, 2001
    Assignee: Hewlett-Packard Company
    Inventors: Warren S. Martin, Mark S. Engel, Harold F. Mantooth
  • Patent number: 6220692
    Abstract: To propose an ink-jet recording apparatus having a small-sized compact driving mechanism for driving an ink suction pump, an elastic blade for wiping a recording head, and a locking arm for locking a carriage. An ink suction pump 8, a locking arm for locking a carriage, and an elastic blade for wiping a recording head are driven by a driving mechanism for common use. The driving mechanism transmits the torque of a single motor via a driving gear to the ink suction pump. Moreover, the driving mechanism also converts the rotary motion into the locking movement of the elastic blade via a rotary cam plate frictionally engaging with the driving gear and further converts the locking movement of the elastic blade to the locking movement of the locking arm. The ink-jet recording apparatus can be made small-sized and compact by driving each driven portion using the driving mechanism for common use.
    Type: Grant
    Filed: July 15, 1999
    Date of Patent: April 24, 2001
    Assignee: Seiko Epson Corporation
    Inventors: Satoshi Iwaya, Atsushi Nishioka
  • Patent number: 6220693
    Abstract: The present invention relates to a method and apparatus for printing digital color images with non-impact print heads whereby fluid flowing at a relatively high velocity proximate ink emitting nozzles affects flight trajectories of undesirable satellite ink droplets incidentally emitted from the nozzles, but does not affect flight trajectories of primary droplets. In one embodiment, a single fluid deflector member oriented upstream of the print head causes fluid flow intermediate the print head and the printing surface and urges the satellites to a preferred location on the printing media. In another embodiment, at least one additional deflector member is oriented to cooperate with the deflector member to ensure that such satellites encounter a forced fluid flow intermediate the print head and print surface.
    Type: Grant
    Filed: September 29, 1997
    Date of Patent: April 24, 2001
    Assignee: ColorSpan Corporation
    Inventors: John Hans Bode, Danny James Vatland, Henry Victor Holec, Benjamin Patrick Leonard, Robert Anthony Laumeyer
  • Patent number: 6220694
    Abstract: An ink jet nozzle arrangement includes a magnetic actuator that is located between a nozzle chamber and an ink supply reservoir and is actuated by externally supplied magnetic pulse cycles to eject ink. Each nozzle further includes a blocking mechanism for blocking movement of the magnetic actuator of those nozzles from which ink is not to be ejected during one of magnetic pulse cycles.
    Type: Grant
    Filed: July 10, 1998
    Date of Patent: April 24, 2001
    Assignee: Silverbrook Research Pty Ltd.
    Inventor: Kia Silverbrook
  • Patent number: 6220695
    Abstract: An electrostatic ink-jet recording device which provides stable printing by preventing too much charged toner from gathering around an ink discharge aperture even if the charged toner has not been discharged for a long time. If the charged toner is not to be discharged, the potential difference between the electrophoretic electrode and the discharge electrode is so controlled as to suppress electrophoretic movement of the charged toner toward the ink discharging aperture, or the potential difference is made zero. If the charged toner is to be discharged, the voltage applied to the discharge electrode is kept lower than the voltage applied to the electrophoretic electrode for a predetermined period of time before discharging a jet of the charged toner.
    Type: Grant
    Filed: October 17, 1996
    Date of Patent: April 24, 2001
    Assignee: NEC Corporation
    Inventors: Hitoshi Minemoto, Yoshihiro Hagiwara, Ryosuke Uematsu, Junichi Suetsugu, Kazuo Shima
  • Patent number: 6220696
    Abstract: An electrostatic ink jet printing head comprises printing electrodes formed on the base film of a substrate. The printing electrodes have insulating coating films which coat the printing electrodes, respectively. Each of the printing electrodes has a main electrode portion formed on the base film and a protruding electrode portion which protrudes from the base film. A covering member covers the main electrode portion. The covering member has an internal surface defining, in cooperation with the main electrode portions and the base film, a ink receiving space which receives ink containing toner particles.
    Type: Grant
    Filed: January 28, 1997
    Date of Patent: April 24, 2001
    Assignee: NEC Corporation
    Inventors: Junichi Suetsugu, Kazuo Shima, Yoshihiro Hagiwara, Ryosuke Uematsu, Hitoshi Minemoto, Toru Yakushiji, Tadashi Mizoguchi, Hitoshi Takemoto
  • Patent number: 6220697
    Abstract: The present invention provides an ink jet recording head comprising a top plate in which two groups of ink passage grooves for forming ink passages, two ink chamber frames, ink introduction passages, two rows of ink discharge ports are formed, two substrates on which a plurality of resistive heat generating elements for discharging ink are formed in correspondence to the two rows of ink discharge ports, and two elastic members for contacting under pressure and securing the substrates and the top plate for each said substrate, and wherein the junction between the substrates and the top plate forms the ink passages and the ink chambers therebetween, and further wherein a groove for isolating the ink discharge port rows from each other is formed between the ink discharge port rows and a depth of the groove is greater than depths of the ink discharge ports and the ink passages.
    Type: Grant
    Filed: August 28, 1997
    Date of Patent: April 24, 2001
    Assignee: Canon Kabushiki Kaisha
    Inventors: Akihiro Yamanaka, Kazuaki Masuda, Hajime Yamamoto, Eiichiro Shimizu, Yasuo Kotaki, Teruo Arashima, Jun Hinami, Wataru Takahashi
  • Patent number: 6220698
    Abstract: An ink jet type recording head having plural pressure generating units which are arranged on a passage unit in a plurality of arrays in a recording head moving direction, and in which reservoirs are formed so as to cross over the pressure generating units per each of the plurality of arrays.
    Type: Grant
    Filed: June 19, 1998
    Date of Patent: April 24, 2001
    Assignee: Seiko Epson Corporation
    Inventor: Takahiro Katakura
  • Patent number: 6220699
    Abstract: A printer apparatus and method of actuating a fluid pump in a printer to deliver fluid to an ink jet printhead without removing the printhead from a printhead carriage particularly useful for priming inkjet printheads using an air displacement pump to deliver air under positive pressure to the printheads. The pump is located proximate a service station on the printer and is automatically actuated by movement of the carriage to service station. The pump may be arcuately positionable to align the pump with a selected one of air passageways provided in a printhead holddown cover on the printhead carriage. Algorithms are provided for locating the precise position of the pump outlet along the carriage scan axis relative to its intended design location and for arcuately positioning the pump relative to the carriage to engage the pump outlet with a selected one of conduits in the carriage connected to each printhead.
    Type: Grant
    Filed: February 17, 1999
    Date of Patent: April 24, 2001
    Assignee: Hewlett-Packard Company
    Inventors: Christopher C. Taylor, Antoni Murcia Serra, Richard H. Lewis, Eric Joseph Johnson, Xavier Girones, Albert Serra, Emilio Angulo
  • Patent number: 6220700
    Abstract: An ink jet recorder includes an ink jet head that is movable in the vertical direction, an ink tank for supplying ink to the head, a detector for detecting the position of the head in the vertical direction, and a moving device for raising and lowering the ink tank. The ink tank moving device changes the vertical position of the ink tank in response to vertical positions of the head detected by the detector. The ink tank moving device is made up of a rack attached to the tank, a pinion gear, and a pinion drive motor. The pressure on the ink supplied to the ink jet head from the ink tank can be made more or less constant, irrespective of the height position of the ink jet head, so that good printing performance can be secured.
    Type: Grant
    Filed: March 15, 1999
    Date of Patent: April 24, 2001
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventor: Hideaki Haigo
  • Patent number: 6220701
    Abstract: An ink cartridge and a method of disassembling the ink cartridge are provided. A casing body has a bottom formed with an ink delivery port extending therethrough. A casing lid joined to the casing body is formed with an air inlet port extending therethrough. The casing body and the casing lid forms a cartridge casing. The cartridge casing is filled with an ink-absorbent material. A delivery port-sealing film seals the ink delivery port. An air inlet port-sealing film seals the air inlet port. A filter is arranged within the casing body at a location inward of the ink delivery port by being inserted thereto from an ink-absorbent material side such that the filter is located between the ink delivery port and the ink-absorbent material. The casing body, the casing lid, the delivery port-sealing film, and the air inlet port-sealing film are formed of a resin material of the same kind.
    Type: Grant
    Filed: October 5, 1999
    Date of Patent: April 24, 2001
    Assignee: Seiko Epson Corporation
    Inventor: Shunji Umemura
  • Patent number: 6220702
    Abstract: The ink bag is structured as follows: To the respective long side portions (1a, 1b, 2a, 2b) of a rectangular-shaped, thermally fusible first film forming the surface portions (1, 2) of the ink bag, there are attached, by thermal fusion, the long side portions of a rectangular-shaped, thermally fusible second film forming the side surface portions (3, 4) of the ink bag and having lower rigidity than the first film to thereby form a cylindrical body. The one-side short side portions (1c, 2c) of the surface portions of the ink bag are attached together by thermal fusion to form a bag body. An ink supply hole forming member (5) is attached by thermal fusion to the other-side short side portions of the surface portions of the ink bag. In the four corners of the ink bag, there are formed band-shaped connecting portions (6 to 9) each starting from one of the two mutually adjoining sides of the ink bag and reaching the other of the two sides.
    Type: Grant
    Filed: December 23, 1999
    Date of Patent: April 24, 2001
    Assignee: Seiko Epson Corporation
    Inventors: Masahiro Nakamura, Takeshi Kobayashi, Masanori Kamijyo, Tadatoshi Honzawa, Michinari Tsukahara
  • Patent number: 6220703
    Abstract: An ophthalmic lens is provided having a PET polarizing film integrally bonded thereto and, optionally, a hard coating integrally bonded to the PET polarizing film. In a preferred construction, the lens material may be surface treated, either physically and/or chemically, for integrally bonding the film to the lens material. Similarly, in another preferred construction, the film may be physically and/or chemically surface treated for integrally bonding a hard coating to the PET film.
    Type: Grant
    Filed: December 29, 1999
    Date of Patent: April 24, 2001
    Assignee: Younger Manufacturing Co., Inc.
    Inventors: Russell E. Evans, Thomas Balch, Edward A. Beeloo, Nancy L. S. Yamasaki
  • Patent number: 6220704
    Abstract: An additional aspherical surface amount is defined by a sum of the optimum amount at a distance portion and the optimum amount at a near portion on a progressive refractive surface. Assuming that the ratio is taken as &agr;:&bgr;, the additional aspherical surface amount is added to the progressive refractive surface in such a manner that &agr; and &bgr; satisfy a relationship of &agr;+&bgr;=1. With this configuration, in the case where an aspherical shape is added to a progressive power lens for correcting visual acuity for the purpose of improving the optical performance and thinning the lens, the optimum aspherical shape can be given not only to a region along a main meridian line but also to the whole of the progressive refractive surface.
    Type: Grant
    Filed: February 14, 2000
    Date of Patent: April 24, 2001
    Assignee: Seiko Epson Corporation
    Inventors: Hiroyuki Mukaiyama, Akira Komatsu
  • Patent number: 6220705
    Abstract: In a progressive multifocal ophthalmic lens having an aspherical surface comprising a far vision region (VL), a near vision region (VP), an intermediate vision region, a main meridian of progression passing through these three regions, and a mounting center (CM), the far vision region includes an angular sector with its apex at the mounting center and a central angle of 110°, within which values of sphere and cylinder are less than or equal to 0.50 diopters, and a region of the lens above the near vision reference point and extending substantially up to the middle of the intermediate vision region has a maximum variation in values of cylinder 20 mm to both sides of the meridian limited to less than or equal to 0.30 diopters, and to less than or equal to 10% of the power addition of the lens. The lenses obtained, generally of power addition greater than or equal to 2.
    Type: Grant
    Filed: January 20, 2000
    Date of Patent: April 24, 2001
    Assignee: Essilor International
    Inventors: Sandrine Francois, Francoise Ahsbahs
  • Patent number: 6220706
    Abstract: An embodiment of the present invention is an apparatus to determine position of an eye that includes: (a) two off-axis, radiation emitter-photodetector pairs, wherein an emitter of a pair is disposed to transmit radiation toward the eye and a photodetector of the pair is disposed to receive radiation reflected by the eye; and (b) a controller that analyzes output from the photodetectors to determine the position of the eye.
    Type: Grant
    Filed: February 10, 2000
    Date of Patent: April 24, 2001
    Assignee: Carl Zeiss, Inc.
    Inventor: James P. Foley
  • Patent number: 6220707
    Abstract: A method for programming an active mirror to transform between a distorted wavefront and a plane wavefront requires independently moving each facet of the active mirror along a respective path. The method includes positioning the facets to respectively reflect a light beam in the wavefront, and establishing a base datum for the facets that corresponds to a plane wavefront. The individual phase shift deviation from a plane wavefront is measured for each light beam, and each respective facet is then moved to minimize the individual deviation. The method also requires that groups of facets act together in regions, such that each facet in a particular region will have a total phase shift that includes the individual deviation, the so-called modulo 2&pgr; phase shift, plus a same modular phase shift. The modular phase shift for each facet in a region is measured from a plane wavefront and is equal to n2&pgr;.
    Type: Grant
    Filed: February 25, 2000
    Date of Patent: April 24, 2001
    Assignee: 20/10 Perfect Vision Optische Geraete GmbH
    Inventor: Josef Bille
  • Patent number: 6220708
    Abstract: A method and device for producing multicolored patterns can test the color vision or the reaction of a viewer. The patterns are produced by at least one switchable light source and at least two differently colored transparent color segments, which are alternately moved into the beam path of the light source. The device is a technically simple and inexpensive method to create multicolored patterns. In this manner, the light source or the light sources shine through each color segment of the color screen at a time interval predetermined by a control so that individual colors are produced. The time intervals of the individual colors follow one another so quickly that a color-merging frequency is reached or exceeded, and the individual colors of each individual light source merge into a mixed color.
    Type: Grant
    Filed: February 22, 2000
    Date of Patent: April 24, 2001
    Assignee: Oculus Optikgeraete GmbH
    Inventor: Gert Koest
  • Patent number: 6220709
    Abstract: The present invention relates to a projection system especially intended for projecting three-dimensional representations on a viewing device (8, 12), where the representations submitted to the watcher's eye are put in relation with the respective point where the watcher stands (6,7), to whom sensors are allocated for locating his or her relative position, so that he or she sees on the viewing device an image virtually represented in space in relation to his or her position. In order to allow for the various three-dimensional representations to be viewed by many watchers on the same viewing device, the system projects several image representations simultaneously, each corresponding to the watcher's relative position. Each watcher is allocated image separating apparatus which enable his or her access to image representations corresponding to the place where he or she stands.
    Type: Grant
    Filed: April 6, 1999
    Date of Patent: April 24, 2001
    Assignee: Helmut Tan
    Inventor: Atilla Heger
  • Patent number: 6220710
    Abstract: A luminosity channel may be provided in an electro-optic projection display by beam splitting the incident light source into first and second polarization beams. One polarization beam may be used to illuminate the three modulators for the three primary color channels. The other beam may be utilized to illuminate a white light modulator which provides a luminosity channel. The two beams may be recombined to produce the final image. As a result, in some embodiments, higher resolution, or wider color gamut, and better image quality may be achieved without unduly effecting the light efficiency of the display.
    Type: Grant
    Filed: May 18, 1999
    Date of Patent: April 24, 2001
    Assignee: Intel Corporation
    Inventors: Kannan Raj, Ronald D. Smith
  • Patent number: 6220711
    Abstract: An augmented display includes an image display source and a silhouette display source. The image display source generates a virtual image to be perceived by a viewer. The silhouette display source occurs in the path of the background light. The silhouette display source generates a mask corresponding to the image content of the image display. The mask is a darkened area reducing or blocking background light. As the light from the virtual image is overlaid onto the background, there is less background light in the portion where the image appears.
    Type: Grant
    Filed: November 10, 1998
    Date of Patent: April 24, 2001
    Assignee: University of Washington
    Inventor: Charles D. Melville
  • Patent number: 6220712
    Abstract: An oblique projection optical system, having a wide field angle and high magnification, includes a compact optical system that provides sufficient inclination projection angle. The optical system includes a plurality of lens elements that optically interact to reduce trapezoid distortion.
    Type: Grant
    Filed: November 23, 1999
    Date of Patent: April 24, 2001
    Assignee: Minolta Co., Ltd.
    Inventor: Soh Ohzawa
  • Patent number: 6220713
    Abstract: Projection lenses and projection lens systems are telecentric between an illumination subsystem and a set of imagers. The lenses and systems can exhibit color fringing correction, uniform imager illumination, athermalization, and component articulation for improved imaging. The lenses and systems may be employed in display apparatuses, such as folded display apparatuses that have decreased footprint size, but long effective projection lengths.
    Type: Grant
    Filed: October 23, 1998
    Date of Patent: April 24, 2001
    Assignee: Compaq Computer Corporation
    Inventors: Biljana Tadic-Galeb, Robert E. Fischer, David Kappel, Neil L. Condra, Ann M. Muscato, Sean M. Donnelly
  • Patent number: 6220714
    Abstract: The present invention provides an image display apparatus comprising a light source, a coupling lens, an integrator and a light valve. If &thgr;LV1 is the largest value that can be taken by the angle formed by light irradiating said light valve and the optical axis as viewed along the short edges of said light valve, &thgr;LV2 is the largest value that can be taken by the angle formed by light irradiating said light valve and the optical axis as viewed along the long edges of said light valve, LLV1 is the length of the short edges of said light valve, LLV2 is the length of the long edge of said light valve and NALED is the effective numerical aperture of said coupling lens, then, the surface area of the light emitting region of said light source is not greater than (LLV1×&thgr;LV1/NALED)×(LLV2×&thgr;LV2/NALED).
    Type: Grant
    Filed: July 16, 1999
    Date of Patent: April 24, 2001
    Assignee: Sony Corporation
    Inventor: Naoya Eguchi
  • Patent number: 6220715
    Abstract: In a method and device for removing light by absorption, undesired light is guided by a light entrance aperture into a hollow body having a light-absorbing inner surface. The light which is directed into the hollow body falls onto the reflection surface of a reflector. The reflection surface is configured and positioned in such a way that the light which is reflected back from the reflection surface is not reflected in itself, that only a minor amount of said light does not reach the outside as scattered light via the light entrance aperture and that a substantial amount of the light reaches the inside of the hollow body where it is absorbed. The invention finds particular use in an electronic recording device for point and line elimination of a recording material with a laser beam, wherein an undesired secondary beam is absorbed according to the inventive method in order to avoid disturbing retroreflections.
    Type: Grant
    Filed: February 22, 2000
    Date of Patent: April 24, 2001
    Assignee: Heidelberger Druckmaschinen Aktiengesellschaft
    Inventors: Jörg Achim Fischer, Thomas Jacobsen
  • Patent number: 6220716
    Abstract: The present invention provides a fender rearview mirror for an automotive vehicle which can be later attached in an easy and quick manner by a nonprofessional even in a vehicle using a door sideview mirror and satisfies a safety standard, such door sideview mirror being constituted by a mirror portion (1), a mounting seat portion (2) and a leg portion (3) therebetween, the mirror portion (1) forming a cylindrical base portion (8) which has an open lower portion on one side of a mirror cover (4) commonly serving as a hood; the mounting seat portion (2) can be gripped and fixed by a fastening bolt (13) with holding a frontward side edge portion (10) of a bonnet (9); the leg portion (3) rotatably engaging an upper portion with the cylindrical base portion (8) of the mirror portion (1) and forming a lower end surface in a cylindrical shape supported on the mounting seat portion (2); a tension coil spring (14) being provided so that an upper end portion (15) thereof may be engaged with an integral portion (17) of
    Type: Grant
    Filed: April 3, 2000
    Date of Patent: April 24, 2001
    Inventor: Hiroshi Asaka
  • Patent number: 6220717
    Abstract: A rear view mirror device for use with an elevated hunter platform is disclosed. The device includes a frame member retaining a mirror element on a front side. A back side of the frame member includes a rod receiving portion for receiving and retaining a top end of a flexible rod. A bottom end of the flexible rod attaches by a screw and wing nut to a center portion of a clamp. The clamp includes a pair of handles and a pair of fingers which are actuated by a spring disposed within the clamp center portion. To deploy the device, pressure is applied to the handles which opens the fingers. The device is then located to its desired position on the elevated hunter platform whereafter the pressure on the handles is released causing the fingers to engage a rail of the platform. The mirror element can then be positioned by rotating the device about a plurality of axises such that the hunter does not have to turn his head to see the area behind or to the side of his forward facing view.
    Type: Grant
    Filed: June 6, 2000
    Date of Patent: April 24, 2001
    Inventor: Anthony Pastore
  • Patent number: 6220718
    Abstract: An artificial floating candle that mimics real burning candles. The floating candle comprises two parts, a floating candle-like device and an electrical circuit that controls the amount of power supplied to each floating candle. The floating candle-like device comprises an incandescent lamp, a lamp housing socket, a candle, a candle base, grommets or O-rings, at least two conductor insulated wires, a multi conductor, a trunk line, a water tight splice, and a candle enclosure. There are three sections that comprise the electrical circuitry of the floating candles: a low voltage supply (AC to DC, high to low voltage conversion), a pulse width modulation programmed micro-controller and a power output section (to control the incandescent lamp voltage to produce flickering flames), and trunk and feeder lines. The floating candles may be used as Christmas lights, at wedding reception halls, amusements parks, or in pools or ponds at evening parties as decoration.
    Type: Grant
    Filed: August 2, 1999
    Date of Patent: April 24, 2001
    Inventor: Gary D. Burgess
  • Patent number: 6220719
    Abstract: A renewable energy flashlight comprises a housing and a barrel located within the housing. A wire coil wraps around the barrel, between the barrel and the housing. A magnet oscillates within the barrel when the flashlight is shaken, generating an alternating current in the coil. Two springs at either end of the barrel cause the magnet to recoil when the magnet strikes the springs. As an alternative, rebound magnets oriented to repel the charging magnet may be installed within the barrel at either end, to cause the magnet to recoil from the ends. An electronics assembly within the housing includes a capacitor for storing charge, a rectifier connected to the capacitor, and means for conducting current flowing in the coil to the rectifier, to charge the capacitor. An LED is connected to the capacitor by means of a switch, and lights up when the switch is switched on.
    Type: Grant
    Filed: July 22, 1999
    Date of Patent: April 24, 2001
    Assignee: Applied Innovative Technologies, Inc.
    Inventors: Steven Robert Vetorino, James Victor Platt, Douglass Anderson Springer
  • Patent number: 6220720
    Abstract: A rotatable head flashlight utilizes a bulb carrier having a circuit board on which are mounted contacts which remain in engagement with energy cells in a battery compartment, a bulb-receiving socket, and a switch assembly engageable with, and operated by, a molded shelf on the inner wall of the battery compartment. The switch includes three contacts, one being a movable contact in the form of a resilient, bridge-like element overlying both of the other contacts, the latter two contacts being printed on the circuit board.
    Type: Grant
    Filed: July 16, 1999
    Date of Patent: April 24, 2001
    Assignee: Princeton Tectonics, Inc.
    Inventor: Jeffrey C. Stephens
  • Patent number: 6220721
    Abstract: A unitary lighting system that provides both general and track or accent lighting includes at least one mounting channel with first and second compartments to accommodate wires that carry different operating voltages along the length of the channel, and a third compartment for supporting either a luminaire or a track section. The through wires in the first and second compartments are run respectively to the luminaire and track sections to provide the appropriate operating voltages to the lighting fixtures supported by the channel.
    Type: Grant
    Filed: April 28, 1998
    Date of Patent: April 24, 2001
    Assignee: Genlyte Thomas Group LLC
    Inventors: Kingsley Chan, Fred Nourishad, Juan Lizarde
  • Patent number: 6220722
    Abstract: The invention relates to a LED lamp having a gear column which is connected, at its first end, to a lamp cap and, at its other end, to a substrate. The substrate is provided with a regular polyhedron of at least four planes, the planes having at least one LED having a luminous flux of at least 5 lm. The gear column also have heat-dissipating means which interconnect the substrate and the lamp cap. A continuous and regular illumination with a high luminous flux can be obtained using a LED lamp of this type.
    Type: Grant
    Filed: September 16, 1999
    Date of Patent: April 24, 2001
    Assignee: U.S. Philips Corporation
    Inventor: Simon H. A. Begemann
  • Patent number: 6220723
    Abstract: An array of disks facing a viewing direction is composed of disks rotatable about an axis approximately perpendicular to the viewing direction between alternating orientations where light and dark surfaces are respectively displayed in the viewing direction. There is provided a row of LEDs located forwardly of the array and out of the normal viewing path located to illuminate the disks of said array. Masking means prevents direct illumination from said LED's being visible in the viewing direction. In a further variant the disks' light surfaces contain a fluorescent component and the LEDs are selected to provide radiation including UV spectra.
    Type: Grant
    Filed: April 20, 1999
    Date of Patent: April 24, 2001
    Assignee: Mark IV Industries Limited
    Inventors: Timothy A. Freeman, Veso S. Tijanic
  • Patent number: 6220724
    Abstract: The invention relates to a device for realizing actively luminous illuminated route systems. According to the invention, cables and luminescent diodes (19) are arranged in a receiving profile (3) and are covered by a cover strip (20). A film (21) which is metallized on one side is arranged on the cover strip (20). The light of the luminescent diodes (19) shines through one side of the film when the actively luminous illuminated route system is activated.
    Type: Grant
    Filed: November 3, 1999
    Date of Patent: April 24, 2001
    Inventor: Gunnar Krokeide
  • Patent number: 6220725
    Abstract: A light source device includes a housing forming a cavity with a diffusely light reflective interior surface and an exit port; at least one LED on the interior surface; a light reflective layer and an electrically and thermally conductive layer between the LED and the housing; electrical contacts interconnecting the LED and the outside of the housing, such that electrical power applied to the contacts causes the LED to emit light.
    Type: Grant
    Filed: March 30, 1998
    Date of Patent: April 24, 2001
    Assignee: Eastman Kodak Company
    Inventor: Stephen C. Arnold
  • Patent number: 6220726
    Abstract: An apparatus which produces light of a highly controlled nature and which makes sufficient use of the light including a light source, a primary reflector placed directly at or near the light source and a secondary reflector which receives light from the light source and from the primary reflector and directs it to a target area.
    Type: Grant
    Filed: July 14, 1997
    Date of Patent: April 24, 2001
    Assignee: Musco Corporation
    Inventor: Myron K. Gordin
  • Patent number: 6220727
    Abstract: A reflective mechanism is provided for a stage lamp providing an incident light. The reflective mechanism includes a first motor having a first output shaft rotating about a first axis and a second motor having a second output shaft rotating about a second axis that is parallel to the first axis. A support is drivable by the first output shaft to rotate about the first axis. A barrel includes a reflective mirror device mounted therearound for reflecting the incident light from the stage lamp. The barrel is mounted to the support and rotatable about a third axis that is perpendicular to the first axis. An endless toothed belt and gears are provided for transmitting power from the second output shaft to the support.
    Type: Grant
    Filed: November 15, 1999
    Date of Patent: April 24, 2001
    Inventor: Ming-Cheng Chang
  • Patent number: 6220728
    Abstract: A worklight mounting system having a post extending from a support and a light having a catch. The post is insertable into the catch and is releasably secured within the catch by the coaction between a groove and at least one roller. The coaction there between prevents axial movement while permitting rotational movement there between.
    Type: Grant
    Filed: July 21, 1999
    Date of Patent: April 24, 2001
    Assignee: Regent Lighting Corporation
    Inventors: Don Andrus, Pei Sheng Qian
  • Patent number: 6220729
    Abstract: The luminaire comprises various flat, light-scattering lamellae (10) extending between elongated reflectors (1) having a longitudinal edge (2) in a luminous window (3). The lamellae (10) have a concave outer edge (12) in the luminous window (3) and a convex inner edge (11). Undesirable reflections are precluded by the convex inner edge (11), while screening of the electric lamp to be accommodated is maintained.
    Type: Grant
    Filed: May 17, 1999
    Date of Patent: April 24, 2001
    Assignee: U.S. Philips Corporation
    Inventor: Petrus A. J. Holten
  • Patent number: 6220730
    Abstract: An illumination obscurement device for controlling the obscurement of illumination from a light source which is optimized for use with a rectangular, arrayed, selective reflection device. In a preferred embodiment, a rotatable shutter with three positions is placed between a light source and a DMD. The first position of the shutter is a mask, preferably an out of focus circle. This out of focus circle creates a circular mask and changes any unwanted dim reflection to a circular shape. The second position of the shutter is completely open, allowing substantially all the light to pass. The third position of the shutter is completely closed, blocking substantially all the light from passing. By controlling the penumbra illumination surrounding the desired illumination, DMDs can be used in illumination devices without creating undesirable rectangular penumbras.
    Type: Grant
    Filed: July 1, 1998
    Date of Patent: April 24, 2001
    Assignee: Light & Sound Design, Ltd.
    Inventors: William Hewlett, Nigel Evans
  • Patent number: 6220731
    Abstract: A cyclorama light includes a housing having generally opaque rear, bottom and side walls and an open front wall defining a window that extends from a region proximate to the upper end of the rear wall and a region proximate to the front end of the bottom wall and generally extending between the side walls. The housing defines a housing axis generally parallel to the rear and bottom walls and normal to the side walls. An elongate reflector essentially extends between the side walls and is mounted for rotary movements about the housing axis. An elongate lamp having a lamp axis is mounted on the reflector to maintain the lamp axis substantially coextensively with the housing axis, the reflector being configured to direct light generated by the elongate lamp with a predetermined intensity distribution through the window formed in the open front wall in a direction which is a function of the rotational position of the reflector about the housing axis.
    Type: Grant
    Filed: November 10, 1998
    Date of Patent: April 24, 2001
    Assignee: Altman Stage Lighting Co., Inc.
    Inventor: John T. Ryan
  • Patent number: 6220732
    Abstract: A side marker lamp mounting assembly for mounting a side marker lamp vertically to an angled, non-horizontal exterior surface of a vehicle and creating an electrical grounding connection between the lamp and the exterior of the vehicle. The support, formed of a non-conductive material, is wedge-shaped and includes a number of mounting sleeves disposed within its interior. A U-shaped ground clip is inserted and secured within a pair of the sleeves such that a central portion of the clip extends below the support to electrically contact the exterior surface of the vehicle. A screw threaded into one of the sleeves secures the support to the vehicle and engages a first end portion of the clip to ensure electrical connection of the clip with the vehicle. The lamp is mounted to the support by a second screw threaded into a second of the sleeves and the second screw contacts a central section of a ground conductor strip extending beneath the lamp.
    Type: Grant
    Filed: October 6, 1999
    Date of Patent: April 24, 2001
    Assignee: Wesbar Corporation
    Inventor: Edgar C. Paffrath
  • Patent number: 6220733
    Abstract: A light system for a vehicle wheel comprising at least one light source, at least one reflective body and an electrical power source operably coupled to the light source. The light source directs light toward the reflective body. In a preferred embodiment several spokes of a spoked wheel are replaced with reflective bodies, and a plurality of LEDs mounted in the inner hub of the spoked wheel direct light toward each reflective body spoke.
    Type: Grant
    Filed: April 17, 1998
    Date of Patent: April 24, 2001
    Inventor: Ryan Lee Gordon
  • Patent number: 6220734
    Abstract: An arrangement for securing a headlight or a lamp including a housing and a lens as a single unit on a vehicle part has several fastening elements which are not covered by the lens. A cover member provided to cover the fastening elements is designed so that a substantially homogeneous appearance is given the cover and the lens to a person observing the lamp.
    Type: Grant
    Filed: March 12, 1999
    Date of Patent: April 24, 2001
    Assignee: Volkswagen AG
    Inventor: Michael Müller
  • Patent number: 6220735
    Abstract: A head lamp for vehicle use is provided, which includes a intermediate tilting member tiltably supported by a lamp body at three points. One point acts as a tilting fulcrum, while the other two points are supported by an aiming adjusting member of an aiming adjusting mechanism, for changing positions of the intermediate tilting member with respect to the lamp body. The head lamp also includes a reflector which is tiltably supported by the intermediate tilting member at three support points, wherein two points are formed into tilting fulcrums, and the other point is supported via a leveling actuator of a leveling adjusting mechanism, for changing a position of the reflector with respect to the intermediate tilting member by an automatic operation or a remote operation.
    Type: Grant
    Filed: July 8, 1999
    Date of Patent: April 24, 2001
    Assignee: Koito Manufacturing Co., Ltd.
    Inventor: Masao Matubara