Patents Represented by Attorney, Agent or Law Firm Mark B. Eisen
  • Patent number: 6811053
    Abstract: An apparatus for dispensing flat articles, which is entirely mechanical, resistant to theft and vandalism and consistently dispenses the correct volume of merchandize. A dispensing mechanism locks out a patron as the last article or item of merchandize is dispensed from the merchandize magazine by arresting rotation of the coin mechanism at a point where a coin cannot be inserted. A novel locking mechanism for the door covering the secure compartment in which collected coins are stored and a novel protective flap for the dispensing slot are also provided.
    Type: Grant
    Filed: October 30, 2002
    Date of Patent: November 2, 2004
    Assignee: Beaver Machine Corporation
    Inventor: Josef W. Schwarzli
  • Patent number: 6778072
    Abstract: An apparatus for operating a reciprocating arm vehicular safety device with a lock for preventing inadvertent deployment of the reciprocating arm. The apparatus has a rotor provided with retaining fingers for engaging the reciprocating, rotatable between locked and unlocked positions. When the reciprocating arm is retracted the rotor rotates to the locked position, and drive circuitry deactivates the device in response to stalling of the rotor drive motor.
    Type: Grant
    Filed: October 2, 2002
    Date of Patent: August 17, 2004
    Assignee: B.M.R. Mfg. Inc.
    Inventors: William R. Phillips, James A. Reavell
  • Patent number: 6769006
    Abstract: A method and apparatus for the calculation of the reciprocal of a normalized mantissa M for a floating-point input number D. A formula for determining the minimum size for the look-up table in accordance with the required precision is provided, as well as formulas for calculating look-up table entries. The look-up table stores the initiation approximations and the correction coefficients, which are addressed by the corresponding number of the mantissa's most significant bits and used to obtain the initial approximation of the reciprocal by means of linear interpolation requiring one subtraction operation and one multiplication operation. The result of the linear interpolation may be fed to a Newton-Raphson iteration device requiring, for each iteration, two multiplication operations and one two's complement operation, thereby doubling the precision of the reciprocal.
    Type: Grant
    Filed: February 14, 2001
    Date of Patent: July 27, 2004
    Assignee: Sicon Video Corporation
    Inventors: Alexei Krouglov, Jie Zhou, Daniel Gudmunson
  • Patent number: 6745795
    Abstract: A method of sealing a pipe and a device for sealing the pipe which prevents gas leakage out of a pipe stub plugged by a stopper disposed in a tee fitting, to allow a permanent cap to be welded onto the pipe. The device comprises an expandable plug comprising a pair of plates with a sealing member disposed between the plates. The plates can be squeezed together, for example by tightening nuts onto bolts extending through the plates to compress the sealing member and cause the periphery of the sealing member to expand against the inner wall of the pipe. Stabilizing means, for example a nut having a reverse thread and a complimentary tool, is provided for stabilizing the expandable plug radially within the pipe as the plates are squeezed together. The expandable plug is inserted into the pipe stub after the bypassed section of pipe has been removed, and lodged in the pipe by squeezing the plates together to expand the sealing member against the inner wall of the pipe stub.
    Type: Grant
    Filed: November 21, 2002
    Date of Patent: June 8, 2004
    Assignee: Enbridge Gas Distribution Inc.
    Inventor: John W. McGivery
  • Patent number: 6708644
    Abstract: A system and method for fitting footwear and footwear inserts provides a removable insert which measures the foot by thermal imaging. The insert is provided with a thermally sensitive layer, for example a thermochromic material having a color transition interval within the range between room temperature and body temperature, that thus reacts to the heat transferred from portions of the foot in contact with the insert and temporarily changes color. The insert retains an image of the footprint for a short interval after contact with the foot, and can be removed from the footwear to examine the position and size of the foot relative to the footwear insole (and thus relative to the footwear) when the footwear is actually worn. For inserts which are purchased separately for cushioning, odor-reduction etc., the footprint image can be used as a guide to cut the footwear insert to follow the shape of an individual's foot.
    Type: Grant
    Filed: November 13, 2001
    Date of Patent: March 23, 2004
    Inventor: Patrick McNamara
  • Patent number: 6702259
    Abstract: A guard rail system fabricated from standard-sized components, preferably extruded, comprises balusters fastened to a lower rail and to an upper retainer at fixed intervals. The balusters are provided with central bores for receiving fasteners such as screws through predrilled holes in the upper retainer and lower rail. A hand rail is slip-fitted over the upper retainer in locking relation, to provide integrated guard rail sections. Guard rail sections so assembled are fastened to end posts, preferably using mounting brackets having a flanged arm which nests in grooves or recesses in the upper retainer and lower rail to provide a safe, secure and aesthetically appealing guard rail.
    Type: Grant
    Filed: November 28, 2001
    Date of Patent: March 9, 2004
    Assignee: Compos-A-Tron Research & Development Inc.
    Inventor: Jim Pratt
  • Patent number: 6666570
    Abstract: An adjustable mounting system and a mounting base for mounting lights at adjustable angles in order to direct the light at the intended target and compensate for changes in the center of gravity of the system as light accessories are added, removed or the light fixture itself is adjusted. The system comprises a mounting base, which has first and second pedestals and a cylindrical crosspiece disposed between the pedestals, a yoke which may be pivotably engaged to a light, and a releasable clamp fixed to the yoke which is pivotably engageable to the crosspiece of the mounting base. The mounting system thus has two pivotable engagement points, both of which may be adjusted independently in mounting a light to the base.
    Type: Grant
    Filed: November 6, 2001
    Date of Patent: December 23, 2003
    Assignee: Christie Lites Ltd.
    Inventor: Jean François Canuel
  • Patent number: 6663755
    Abstract: An apparatus for the application of coatings in a vacuum comprising a plasma duct surrounded by a magnetic deflecting system communicating with a first plasma source and a coating chamber in which a substrate holder is arranged off of an optical axis of the plasma source, has at least one deflecting electrode mounted on one or more walls of the plasma duct. In one embodiment an isolated repelling or repelling electrode is positioned in the plasma duct downstream of the deflecting electrode where the tangential component of a deflecting magnetic field is strongest, connected to the positive pole of a current source which allows the isolated electrode current to be varied independently and increased above the level of the anode current. The deflecting electrode may serve as a getter pump to improve pumping efficiency and divert metal ions from the plasma flow.
    Type: Grant
    Filed: April 6, 2001
    Date of Patent: December 16, 2003
    Assignee: G & H Technologies LLC
    Inventor: Vladimir I. Gorokhovsky
  • Patent number: 6645354
    Abstract: The invention provides an arc coating apparatus having a steering magnetic field source comprising steering conductors disposed along the short sides of a rectangular target behind the target, and a magnetic focusing system disposed along the long sides of the target in front of the target which confines the flow of plasma between magnetic fields generated on opposite long sides of the target. The plasma focusing system can be used to deflect the plasma flow off of the working axis of the cathode. Each steering conductor can be controlled independently. In a further embodiment, electrically independent steering conductors are disposed along opposite long sides of the cathode plate, and by selectively varying a current through one conductor, the path of the arc spot shifts to widen an erosion corridor. The invention also provides a plurality of internal anodes, and optionally a surrounding anode for deflecting the plasma flow and preserving a high ionization level of the plasma.
    Type: Grant
    Filed: January 3, 2002
    Date of Patent: November 11, 2003
    Inventor: Vladimir I. Gorokhovsky
  • Patent number: 6634578
    Abstract: A mechanical system that separates bundles of paper and presents the separated paper on a conveyor in a single layer fashion, for further processing. The paper is accumulated in a hopper and fed into the mechanical separating mechanism in a batch mode. When sufficient volume has been admitted to the container, the inflow port is closed and the mechanical separating impeller are activated to rotate in the same direction, imparting bidirectional forces on compacted bundles of sheets or shreds, causing them to deaggregate. Upon completion of the separation cycle, the separated sheets are expelled through an outlet port and conveyed to a drop chute for further singulation, from which the singulated sheets may be deposited onto one or more conveyor belts for sorting.
    Type: Grant
    Filed: November 8, 2000
    Date of Patent: October 21, 2003
    Assignee: Eco-Shred Ltd.
    Inventors: Zaheer Khalfan, Sheldon Greenspan
  • Patent number: 6608710
    Abstract: An automatic gain control circuit for an optical receiver couples the low level signal produced by an optical detector to a signal amplifier, preferably a double-ended differential amplifier with the optical detector output fed into the high input and the low input coupled to ground, the gain of which is controlled by a negative feedback circuit. The feedback circuit comprises a signal level detection circuit coupled to the amplifier output, such as high-speed Schottky diodes acting in conjunction with an operational amplifier. The Schottky diodes are coupled to ground through AC coupling capacitors, and oriented in opposite directions, so when the amplified signal exceeds a conduction threshold of the Schottky diodes the capacitors are respectively charged and drained, establishing a voltage difference between the input terminals of the operational amplifier.
    Type: Grant
    Filed: April 28, 2000
    Date of Patent: August 19, 2003
    Assignee: Leitch Technology International Inc.
    Inventor: Adrian A. Battagin
  • Patent number: 6602456
    Abstract: An actuator for a press comprises a piston disposed through a small bore diameter high speed actuating cylinder, having a piston head disposed within the actuating cylinder and another piston head disposed within a larger bore diameter hydraulic clamping cylinder to apply the required clamping force to the press.
    Type: Grant
    Filed: May 31, 2001
    Date of Patent: August 5, 2003
    Assignee: Reena Corporation
    Inventors: Rudy Steger, Daniel Meidan
  • Patent number: D478634
    Type: Grant
    Filed: February 28, 2002
    Date of Patent: August 19, 2003
    Assignee: Perennial Inc.
    Inventors: Cameron Whitworth, Scott Duyn
  • Patent number: D479441
    Type: Grant
    Filed: June 7, 2002
    Date of Patent: September 9, 2003
    Assignee: Perennial Inc.
    Inventors: Cameron Whitworth, Scott Duyn
  • Patent number: D483540
    Type: Grant
    Filed: November 6, 2002
    Date of Patent: December 9, 2003
    Assignee: Lockwood Manufacturing Inc.
    Inventors: Patrick Murray, Lucian Bradea
  • Patent number: D483925
    Type: Grant
    Filed: November 22, 2002
    Date of Patent: December 23, 2003
    Inventor: Brad Scott
  • Patent number: D484321
    Type: Grant
    Filed: November 9, 2001
    Date of Patent: December 30, 2003
    Inventor: Steven Jacobs
  • Patent number: D489413
    Type: Grant
    Filed: July 23, 2002
    Date of Patent: May 4, 2004
    Assignee: Beaver Machine Corporation
    Inventor: Josef W. Schwarzli
  • Patent number: D492361
    Type: Grant
    Filed: October 3, 2002
    Date of Patent: June 29, 2004
    Inventor: Mario Jacques Adéclat
  • Patent number: D498673
    Type: Grant
    Filed: September 23, 2003
    Date of Patent: November 23, 2004
    Assignee: 673367 Ontario Ltd.
    Inventor: David Weiss