Patents Represented by Attorney Martin Lukacher
  • Patent number: 6483439
    Abstract: A warning lamp, provides multi status indication by being illuminated in selected ones of a plurality of colors or by flashing a selected color or colors sequentially. The lamp has a pair of printed circuit boards disposed, one in a base and another upstanding from the base along a central axis, extending midway through the upstanding board. Around the upstanding board and coaxial therewith is a lens which is mounted in assembled relationship with the boards and the base. The upstanding board has arrays of light emitting diodes (LEDs), disposed along spaced lines which are parallel to the axis. The LEDs along different lines provide light of different color, for example, red, green and amber. The printed circuit boards provide a subassembly in which the bottom portion of the upstanding board and the other board are contained in a plastic casting disposed in a recess in the base.
    Type: Grant
    Filed: October 14, 1999
    Date of Patent: November 19, 2002
    Assignee: Star Headlight and Lantern Co., Inc.
    Inventor: Stephen T. Vukosic
  • Patent number: 6409011
    Abstract: A conveyor has an endless belt which encompasses a gate section and a fixed section thereof Both the gate section and fixed section have beds which extend lengthwise and widthwise thereof between rails which extend along the lengths of the section. The edges of the belt run along the rails and are hence guarded by the rails. The sections are joined at adjacent edges by hinges pivotally connected to the bed of the fixed section and extending across the joint to the gate section. The hinges are within the confines of the belt, that is within the path of the belt and between the edges of the belt, so as to enable the gate section to be pivoted to an open position allowing a passageway via the width of the conveyor. When in closed position, the hinge enables the ends of the rails to move into abutting relationship. Permanent guards on the outsides of the fixed section can extend above the belt to maintain safe operating conditions without interfering with the opening and closing of the gate section.
    Type: Grant
    Filed: May 24, 2000
    Date of Patent: June 25, 2002
    Assignee: Precision Handling Devices, Inc.
    Inventor: Gregory A. Ferguson
  • Patent number: 6385833
    Abstract: In order to facilitate the installation of weatherstripping into channels, usually T-slots, of frames in windows and doors, variations in size of the slots is accommodated by changing the size of interference members extending from the backing strip of the weatherstripping. A forming tool, such as a shaft having a forming surface or on which a forming roller is movably mounted in a support structure. The support structure is disposed adjacent the mechanism of the insertion apparatus which feeds the weatherstrip into the T-slot of the frame. The support has a channel via which the weatherstrip passes into the insertion mechanism and thence into the T-slot in the frame. A wall in the support member presents the forming tool to the interference portions of the backing strip of the weatherstripping and is operative to swage and crimp or otherwise change the cross sectional size of the backing strip in relationship to the size of the T-slot which receives the backing strip.
    Type: Grant
    Filed: September 6, 2000
    Date of Patent: May 14, 2002
    Assignee: Ultrafab, Inc.
    Inventors: James V. Albanese, Daniel W. Richter
  • Patent number: 6374790
    Abstract: A model airplane engine uses a heated backplate to replace the conventional, non-heated backplate of the engine. The backplate incorporates a heater, which is electrically, temporarily energized during the start cycle of the engine. The higher temperature of the engine results in vaporization of the fuel prior to its entry into the combustion cylinder thus preventing crankcase and cylinder flooding and allowing easy starts during operation in cold weather, and also makes possible the use of inexpensive low-volatility heavier fuels, rather than special, expensive fuels.
    Type: Grant
    Filed: April 24, 2000
    Date of Patent: April 23, 2002
    Assignee: Veritay Technology, Inc.
    Inventors: Franklin A. Vassallo, C. David Gierke
  • Patent number: 6366127
    Abstract: CMOS voltage interface circuits have low power consumption, and minimal delays and power dissipation for the driving strength of the output. The circuits use a interface block which is operative upon the applied input signal, depending upon its state and timing, to generate the output at a specified voltage level which may be different from the level of the applied input.
    Type: Grant
    Filed: April 27, 2000
    Date of Patent: April 2, 2002
    Assignee: The University of Rochester
    Inventors: Eby Friedman, Radu M. Secareanu
  • Patent number: 6364550
    Abstract: A miniature printer is provided with a printer mechanism in a housing. A thermal printhead is fixedly mounted in the mechanism. The mechanism and the housing define a compartment for a roll of paper which is loosely disposed in the housing and is extended over the thermal printhead. The compartment is closed by a cover hinged to the housing at one end thereof. A platen roller is located in the cover in an opening larger than the shaft of the roller, which opening and cover provides a floating mount for the platen roller. A driven gear which rotates the platen roller is mounted on the shaft near one end thereof. A pair of hairpin springs have ends which are located in the path which the platen roller takes as the cover is closed and moves into engagement with the platen roller. The springs align the platen roller with the printing elements on the printhead and bias the platen roller into engagement with the printhead, while latching the platen roller and the cover in closed position.
    Type: Grant
    Filed: June 9, 2000
    Date of Patent: April 2, 2002
    Assignee: ZIH Corp.
    Inventor: Steven F. Petteruti
  • Patent number: 6304373
    Abstract: The quality of image produced by confocal microscopy, and especially scanning laser confocal microscopy, is enhanced especially for images obtained in turbid mediums such as many biological tissues specimens, by reducing speckle from scatterers that exist outside (above and below) the section which is being imaged by utilizing reduced coherence illumination, such as provided by a multi-mode laser. The laser beam is focused to provide its intensity in lobes forming offset spots in opposite (180°) amplitude phase relationship. The lobes are combined in the return light from the section and detected after passing through the confocal aperture of the confocal microscope. Images can be formed from the detected return light. Light from scatterers outside the section of interest, which are illuminated by both of the lobes beams overlap outside the section and interfere, thereby reducing speckle due to such scatterers, and particularly scatters which are adjacent to the section being imaged.
    Type: Grant
    Filed: March 9, 1998
    Date of Patent: October 16, 2001
    Assignee: Lucid, Inc.
    Inventor: Jame M. Zavislan
  • Patent number: 6252757
    Abstract: Static brushes suitable for handling electric charges so as to obtain static electricity control including static discharge in web handling devices such as printers, presses, xerographic copiers and other film and paper handling equipment is made of conductive thread wound in continuous turns around a mandrel and slit to form open-ended loops forming the brush bristles. A continuous element or elements, such as a wire or wires, may be placed on the mandrel and the turns are wound thereon. Strips of pressure-sensitive tape are adhered along the sides of said loops and encompass the element(s) so as to hold the loops and elements assembled as unitary brushes, which may readily be installed in equipment requiring static control by removing releasable paper over pressure-sensitive material on the outside of these strips. Double-sided pressure-sensitive adhesive tape may be used in constructing the brushes.
    Type: Grant
    Filed: July 23, 1999
    Date of Patent: June 26, 2001
    Assignee: Ultrafab, Inc.
    Inventors: David H. Loughney, John L. McKinney, Edward W. Norton
  • Patent number: 6239866
    Abstract: Dithered-edge sampling (DES) enables ultra-wideband measurement of terahertz pulses (far infrared electromagnetic pulses) using photoconductive antennas. The terahertz pulse is sampled by first passing it through a triggered photoconductive attenuator whose fast attenuation edge (limited only by the duration of the optical gating pulse) is dithered in time. A slow photoconductive receiver then measures the component of the terahertz electric field that is modulated at the dither frequency. The current through the photoconductive element constituting the receiver passes through a locking amplifier which may be operated at dither frequency. When used alone, the receiver blurs the measured terahertz pulse width. However, the increased time resolution provided by DES enables measurement of source-limited terahertz pulse widths. In addition, DES may be used to make direct measurements of a photoconductive receiver's temporal response.
    Type: Grant
    Filed: July 8, 1999
    Date of Patent: May 29, 2001
    Assignee: The University of Rochester
    Inventors: Jake Bromage, Ian Walmsley
  • Patent number: 6226113
    Abstract: Optical filters and filter systems operate in accordance with correlation-induced spectral changes and are applied for spectral line resolution in spectrometry, for optical data processing and for cryptography, as by having prescribed filtering properties in different directions of observation.
    Type: Grant
    Filed: May 5, 1997
    Date of Patent: May 1, 2001
    Assignee: The University of Rochester
    Inventor: Emil Wolf
  • Patent number: 6194698
    Abstract: An electro-optical sensor senses marks on a sheet which travels longitudinally with respect to a printed circuit board, carrying linear arrays of light sources (LEDs) and photodetectors and optics which define zones displaced laterally across the width of a sheet of paper, longitudinal columns of which can contain marks, the presence and absence of which marks is detected by the sensor. The sensor is especially adapted for use in detecting marks which indicate votes on paper ballots in electronic, computerized vote counting apparatus.
    Type: Grant
    Filed: November 13, 1996
    Date of Patent: February 27, 2001
    Assignee: Lucid, Inc.
    Inventors: James M. Zavislan, Scott R. Grodevant
  • Patent number: 6166590
    Abstract: Circuit useful as current mirror and/or current divider has a circuit topology containing mirror and reference transistor pairs, respectively provided by MOS P and N type transistors for the up and down mirrors. The mirror transistor in each pair is followed by a buffer transistor which provides the current output. The topology obtains equal input and output currents through the DC biasing of the reference and mirror transistors by providing equality of the D to S and G to S voltages operative in both the reference and mirror transistors of both mirrors. The topology provides matched performance for the up and down current mirrors with very high mirroring accuracy, design insensitive up and down mirrored current, excellent operation over a wide power supply range, temperature insensitive precision, and the possibility of conveniently obtaining a wide range of current divisions.
    Type: Grant
    Filed: May 14, 1999
    Date of Patent: December 26, 2000
    Assignee: The University of Rochester
    Inventors: Eby Friedman, Radu M. Secareanu
  • Patent number: 6142458
    Abstract: In order to sparge gas into a liquid or liquid suspension in a tank wherein a principally axial flow pattern downwardly towards the bottom of the tank and then upwardly along the side wall of the tank returning axially downward is established by an axial flow impeller, a disc of a diameter less than the diameter of the impeller is spaced axially therefrom in the direction of the outlet flow towards the bottom of the tank from the impeller so as to turn the axial flow, radially, thereby establishing a pressure gradient which prevents the collection of gas released by a sparge between the disc and the bottom of the tank and flooding of the impeller. The gas is released in the axial flow from the tip region of the impeller thereby facilitating the shearing of the gas into fine bubbles promoting mass transfer of the gaseous phase into the liquid phase in the tank. Since flooding is inhibited, as much as six times the volume of gas (gas rate) can be handled as may be the case without the disc.
    Type: Grant
    Filed: October 29, 1998
    Date of Patent: November 7, 2000
    Assignee: General Signal Corporation
    Inventor: Richard A Howk
  • Patent number: 6134010
    Abstract: The quality of images produced by confocal microscopy, and especially scanning laser confocal microscopy, is enhanced especially for images obtained in turbid mediums such as many biological tissue specimens, by reducing speckle from scatterers that exist outside (above and below) the section which is being imaged by utilizing sheared beams, both of which are focused to laterally or vertically offset spots and polarizing the beams to have opposite senses of circular polarization (right and left handed circular polarization). The return light from the section of certain polarization is detected after passing through the confocal aperture of the confocal microscope. Images can be formed using optical coherence detection of the return light. Light from scatterers outside the section of interest, which are illuminated by both of the sheared beams, interfere thereby reducing speckle due to such scatterers, and particularly scatters which are adjacent to the section being imaged.
    Type: Grant
    Filed: January 22, 1999
    Date of Patent: October 17, 2000
    Assignee: Lucid, Inc.
    Inventor: James M. Zavislan
  • Patent number: 6134009
    Abstract: The quality of images produced by confocal microscopy, and especially scanning laser confocal microscopy, is enhanced especially for images obtained in turbid mediums such as many biological tissue specimens, by reducing speckle from scatterers that exist outside (above and below) the focal plane region which is being imaged by utilizing sheared beams, both of which are focused to spots in the focal or image plane (region of interest) and polarizing the beams to have opposite senses of circular polarization (right and left handed circular polarization). The return light from the image plane of certain polarization is detected after passing through the confocal aperture of the confocal microscope. Light from scatterers outside the region of interest, which are illuminated by both of the sheared beams, interfere thereby reducing speckle due to such scatterers, and particularly scatters which are adjacent to the image plane.
    Type: Grant
    Filed: November 7, 1997
    Date of Patent: October 17, 2000
    Assignee: Lucid, Inc.
    Inventor: James M. Zavislan
  • Patent number: 6092853
    Abstract: An improved system for passenger safety in a front-end vehicle collision, whereby the kinetic energy of a passenger may be reduced before the passenger is exposed to the crash deceleration. An array of variably momentum-responsive electrical sensors mounted in the forward portion of the vehicle senses the onset of a front-end collision and sends one or more crash signals to the passenger compartment. A passenger seat is mounted on translating means permitting rearward motion and has a harness to secure a passenger to the seat. Beneath the seat, attached between the floor of the vehicle and the frame of the seat, is an array of pairs of linear actuators, each actuator being powered by an explosive charge and each pair being electrically connected uniquely to one of the momentum sensors.
    Type: Grant
    Filed: February 8, 1999
    Date of Patent: July 25, 2000
    Inventor: Leo James Hubbard
  • Patent number: 5986778
    Abstract: Bow can be minimized by an auxiliary grating in a post deflection path of the diffracted beam from the hologon which is disposed in non-parallel relationship to the plane of rotation of the hologon. The ellipticity of the spot which generates the scan line and intensity variation in the scan beam can be minimized by using a dispersive element, preferably a prism, between the hologon and the bow compensation grating with its dispersion in a direction opposite to the direction of the dispersion of the hologon and of the auxiliary grating. Another grating before the hologon can be used to correct for wavelength shift induced cross-scan error associated with the dispersion in the hologon and a bow compensation grating following the hologon.
    Type: Grant
    Filed: September 4, 1990
    Date of Patent: November 16, 1999
    Assignee: Holotek Ltd.
    Inventor: Charles J. Kramer
  • Patent number: 5656041
    Abstract: In a process for detoxifying a coal-tar deposit, effective amounts of carbon and a calcium oxide containing substance are added at a mixing station to at least a portion of the coal-tar deposit. The reaction mixture thus formed is mixed at a temperature of about 70.degree. F. to 130.degree. F. for a time sufficient to detoxify it and convert it into a non-hazardous reaction product. The coal-tar deposit may be either a substantially homogeneous coal-tar or a heterogeneous coal-tar contaminated substrate. The mixing station site may be either subsurface or surface and may include a container. The non-hazardous reaction product may be separated into small particles, suitable as fuel, and large particles, suitable as safe fill.
    Type: Grant
    Filed: June 5, 1996
    Date of Patent: August 12, 1997
    Assignee: Rochester Gas & Electric Co.
    Inventor: Kevin L. Hylton
  • Patent number: D457057
    Type: Grant
    Filed: May 22, 2001
    Date of Patent: May 14, 2002
    Assignee: C.I.F. Inc.
    Inventor: Filippo Vigneri
  • Patent number: D469711
    Type: Grant
    Filed: October 1, 2002
    Date of Patent: February 4, 2003
    Assignee: Star Headlight & Lantern Co., Inc.
    Inventors: Steven W. Neufeglise, Jack Douglas Richardson, Stephen T. Vukosic