Patents Represented by Attorney, Agent or Law Firm Gardere & Wynne, L.L.P.
  • Patent number: 5931605
    Abstract: Apparatus for in-situ remediation of contaminant-bearing earthen material includes a generally cylindrical tined assembly; a housing for mounting the tined assembly for rotational motion; an hydraulic driver for delivering torque to rotate the tined assembly; and an additive supply system configured to drop an additive into the space defined by and along the length of the cylindrical tined assembly.
    Type: Grant
    Filed: June 19, 1997
    Date of Patent: August 3, 1999
    Assignee: Itex Environmental Services, Inc.
    Inventors: Irfan A. Toor, Anthony R. Sequenzia, Luke C. Kollasch
  • Patent number: 5931773
    Abstract: This invention relates to the treatment of contaminated materials including soils and solids to reduce its permeability, and in particular to chemical treatment of waste or solids containing high levels of heavy metals such as lead, by treating the waste or solid with a single additive or combination of additives including calcium carbonate; reactive magnesium carbonate; reactive calcium magnesium carbonate; magnesium oxide; magnesium hydroxide; ammonium phosphate; diammonium phosphate; phosphoric acid; boric acid; metallic iron; polyphosphoric acid; sodium carbonate; sodium bicarbonate; calcium oxide; calcium hydroxide; sodium hydrogen phosphate; triple super phosphate (TSP); superphosphate; polyphosphoric acid; phosphoric acids; salts of phosphoric acids; P.sub.2 O.sub.5 ; phosphate rock; monoammonium phosphate; disodium hydrogen phosphate; trisodium phosphate; water soluble phosphate; Fe(II); Fe(III); Al(III); chloride; Fe(NO.sub.3).sub.3 ; FeSO.sub.4 ; Fe.sub.2 (SO.sub.4).sub.3 ; FeCl.sub.3 ; Al.sub.
    Type: Grant
    Filed: June 2, 1997
    Date of Patent: August 3, 1999
    Assignee: Entact, Inc.
    Inventor: Philip J. Pisani
  • Patent number: 5927904
    Abstract: A pumpskid comprises a frame adapted for connection to a remotely operated vehicle for positioning thereby. A male connector mounted on the frame is adapted for engagement with the suction port on a suction anchor. Clamping apparatus is provided for securing the male connector in engagement with the suction port of the suction anchor and thereby clamping the pumpskid in engagement with the suction anchor. A pump mounted on the frame is connected in fluid communication with the male connector by piping sections which include a port open to the surrounding sea. Valves and valve actuators are provided for causing the pump to cause water flow out of or into the suction anchor, as required.
    Type: Grant
    Filed: October 29, 1997
    Date of Patent: July 27, 1999
    Assignee: Aker Marine, Inc.
    Inventors: Johannes Jacobus Treu, Thomas M. Fulton, Francis Wade Abadie, Frederick Howard Culver
  • Patent number: 5915949
    Abstract: The invention provides a method for controlling pests which, according to one aspect of the invention, uses a laser beam to exterminate pests hidden behind or within a solid barrier. The laser light must have a wavelength and power to sufficient exterminate the pests hidden behind or within the barrier without damaging the barrier. Such a method can be used to control ant and termite infestation of common household building materials and agricultural pest control of crop fields.
    Type: Grant
    Filed: September 2, 1994
    Date of Patent: June 29, 1999
    Inventor: W. Dudley Johnson
  • Patent number: 5901375
    Abstract: A multi-purpose garment has an elongated, rectangular first sheet. The first sheet has an inside surface, an outside surface, a pair of short sides and a pair of long sides. A hood has a bottom edge attached at a central position along one of the long sides of the first sheet. A first pocket is disposed on the inside of the first sheet and opens towards the hood at a central position along the one long side of the first sheet. The first pocket is positioned and sized to receive the hood folded therein. A reversible second pocket is disposed on the outside of the first sheet and opens away from the hood at a central position along the one long side of the first sheet and the second pocket is sized to receive the first sheet folded therein.
    Type: Grant
    Filed: July 24, 1998
    Date of Patent: May 11, 1999
    Inventor: Burl W. Davis
  • Patent number: 5901830
    Abstract: A bi-directional belt sorter for unloading items into a selected bin located along a travel path of a conveyor system includes a carrier and a support frame secured to the carrier. The carrier has a plurality of orientations with respect to the support frame. The carrier includes a conveyor belt for unloading items into the selected bin located to the side of or in-line with the travel path of the conveyor system. The conveyor system includes a host computer for controlling the distribution of items to selected bins.
    Type: Grant
    Filed: January 22, 1997
    Date of Patent: May 11, 1999
    Assignee: ElectroCom Automation, L.P.
    Inventors: W. Scott Kalm, Edward J. Budill
  • Patent number: 5865116
    Abstract: An apparatus for continuously providing dampening fluid to a plate cylinder of a lithographic printing press includes a frame operatively connected to the printing press. A dampening fluid reservoir is attached. A pan roller is rotatably mounted in the frame and is disposed in contact with dampening fluid in the dampening fluid reservoir. A transfer roller set tangentially contacts and is parallel to the pan roller. The transfer roller is rotated by friction from the pan roller which is driven at a rotation speed proportional to the speed of the plate cylinder. An ink receptive oscillating roller having a resiliently compressible surface is tangentially contacting and parallel to the transfer roller. The oscillating roller is gear driven at a rotational speed proportional to the speed of the plate cylinder.
    Type: Grant
    Filed: November 13, 1996
    Date of Patent: February 2, 1999
    Inventors: James J. Keller, David N. Clay
  • Patent number: 5855479
    Abstract: A set of endodontic cutting instruments, each having handles and each having a different working tip diameter incrementally increasing in size from one instrument to the next. The set includes a first smaller standard size endodontic cutting instrument having a grasping end with a first color according to a standard color code, a second larger standard size endodontic cutting instrument having a grasping end with a second color according to the standard color code and a non-standard intermediate size endodontic instrument having a size between the first smaller standard size and the second larger standard size and having a grasping end with a color combination including a first portion having the first standard color corresponding to the first smaller standard size and a second portion having the second standard color corresponding to the second larger standard size. Nonstandard taper portions on the cutting instruments are provided to smooth stair step root canal cavities.
    Type: Grant
    Filed: March 12, 1996
    Date of Patent: January 5, 1999
    Inventors: Nelson J. Wong, John W. Montgomery
  • Patent number: 5829316
    Abstract: An assembly of two gets of universal mounts for interlocking with stock handlebar clamps to secure a larger diameter handlebar to a motorcycle or comparable vehicles. The two sets of universal mounts are used for mounting larger diameter handlebars to motorcycles or comparable vehicles. The two sets of the universal mounts are interlocked with the stock handlebar clamps. Each set of the universal mount has an upper mount and a lower mount. Each mount has a semi-cylindrical groove, where the larger diameter handlebar is fitted between the semi-cylindrical grooves of the upper and lower mounts respectively. Each lower mount has a protruding arch which is respectively positioned within the respective stock handlebar clamp, and thereby interlocks with the respective stock handlebar clamp.
    Type: Grant
    Filed: November 5, 1996
    Date of Patent: November 3, 1998
    Assignee: Answer Products, Inc.
    Inventor: John Krizman, Jr.
  • Patent number: 5810570
    Abstract: A novel reciprocating pump for cryogenic fluids having a super-low NPSH requirement. The pump has a spring-loaded intake valve made of magnetic material and a reciprocating piston having a permanent magnet at its head end. The intake valve is positioned such that when the piston is at or near the top of its stroke, the magnet will tend to pull said intake valve into an open position. The pump also preferably includes a mechanical spring energized (MSE) seal on the upper end of the piston.
    Type: Grant
    Filed: January 6, 1997
    Date of Patent: September 22, 1998
    Assignee: Chemical Seal & Packing, Inc.
    Inventor: Dan Dinh Nguyen
  • Patent number: 5782311
    Abstract: A pipe bursting apparatus includes a directional boring machine capable of simultaneously rotating and pulling a drill string and an impact tool connectable to the drill string. The impact tool includes a tubular housing ending in a front bursting head, an input shaft, bearings supporting the input shaft for rotation within the housing, a striker disposed for reciprocation within the housing to deliver impacts to a front anvil, and a drive mechanism for simultaneously pulling the impact tool forward in response to a pulling force on the input shaft and for reciprocating the striker to drive the tool forward by the action of cyclic impacts on the front anvil. The apparatus can carry out a pipe bursting operation in a manner that eliminates the need to use a separate pneumatic impact tool to burst the existing pipe.
    Type: Grant
    Filed: January 3, 1997
    Date of Patent: July 21, 1998
    Assignee: Earth Tool Company, LLC
    Inventor: Steven W. Wentworth
  • Patent number: 5776035
    Abstract: A stepping exerciser includes a base frame having a first end portion, a second end portion, a first side wall, and a second side wall. A supporting handle has a lower end portion mounted on the first end portion of the base frame, and an upper end portion with a handgrip. A driving axle is rotatably mounted on the second end portion of the base frame and has a first end and a second end extending through the first and the second side wall of the base frame respectively. A first stepping plate includes a mediate portion fixedly mounted on the first end of the driving axle and two distal end portions each with a first abutting edge vertically protruding outwardly. A second stepping plate is disposed in an inclined manner with the first stepping plate and includes a mediate portion fixedly mounted on the second end of the driving axle, and two distal end portions each with a second abutting edge vertically protruding outwardly.
    Type: Grant
    Filed: July 23, 1997
    Date of Patent: July 7, 1998
    Inventor: Ping Chen
  • Patent number: 5776036
    Abstract: A stepping exerciser includes a base frame having a first end portion, a second end portion, a first side wall, and a second side wall. A supporting handle has a lower end portion mounted on the first end portion of the base frame, and an upper end portion with a handgrip. A driving axle is rotatably mounted on the second end portion of the base frame and has a first end and a second end extending through the first and the second side wall of the base frame respectively. A first stepping member includes a plurality of first upright rods each having a first end mounted on the first end of the driving axle and a second end with a first crossbar. A second stepping member includes a plurality of second upright rods each having a first end mounted on the second end of the driving axle and a second end with a second crossbar. A tension adjusting mechanism is provided for damping a rotation of the driving axle.
    Type: Grant
    Filed: July 23, 1997
    Date of Patent: July 7, 1998
    Inventor: Ping Chen
  • Patent number: 5774004
    Abstract: A hysteresis limiter including a hysteresis limiting circuit, a signal variance tracking device and a reference voltage selecting device can dynamically track variance of signals and adjust a reference voltage. The signal variance tracking device enters an offset tracking mode when there has not been any variance occurring in an output of the hysteresis limiting circuit for a predetermined period of time. In the offset tracking mode, the reference voltage selecting device continuously activates a change of the reference voltage until the output of the hysteresis limiting circuit becomes unstable. The unstable state implies that an offset is located, so treatment of the input signals can then be proceeded.
    Type: Grant
    Filed: March 26, 1997
    Date of Patent: June 30, 1998
    Assignee: Winbond Electronics Corp.
    Inventor: Yung-Chow Peng
  • Patent number: 5769447
    Abstract: A foldable stroller includes a controlling device mounted to a U-shaped handle tube and a folding device. The controlling device includes a front and rear covers, a disk secured to the central portion of the handle tube and disposed between the front cover and the rear cover, two opposite circumferential grooves each defined at a periphery of the disk, two cables received in respective grooves and an end of each of the cables is secured to the disk. A latch is pivotally mounted to the central portion of the handle tube and is in contact with the disk. The folding device connects an upper end of each of a pair of front members, an upper end of each of a pair of rear members and an associated lower end of side portions of the handle tube and comprises a positioning seat securely mounted to each of the upper ends of the front members. A seat is slidably disposed on the upper end of the positioning seat and defines a first receptacle.
    Type: Grant
    Filed: April 1, 1996
    Date of Patent: June 23, 1998
    Inventor: Li-chu Chen Huang
  • Patent number: D396228
    Type: Grant
    Filed: October 16, 1997
    Date of Patent: July 21, 1998
    Inventor: Li-Ho Yao
  • Patent number: D396508
    Type: Grant
    Filed: May 2, 1997
    Date of Patent: July 28, 1998
    Inventor: Chih-Liang Chen
  • Patent number: D403421
    Type: Grant
    Filed: March 29, 1995
    Date of Patent: December 29, 1998
    Assignee: Rich-Mar Corporation
    Inventors: G. Lee Cody, Kenneth W. Coffey
  • Patent number: D410744
    Type: Grant
    Filed: May 4, 1998
    Date of Patent: June 8, 1999
    Inventor: Nevin D. Banister
  • Patent number: D412770
    Type: Grant
    Filed: September 24, 1996
    Date of Patent: August 17, 1999
    Assignee: The Smart Cookie, Inc.
    Inventors: Isidro M. Martinez, Jeffrey S. Dole