Patents Represented by Law Firm Speckman, Pauley & Fejer
  • Patent number: 5823769
    Abstract: A process and apparatus for combustion of a fuel and oxidant in which a first portion of a fuel is mixed with an oxidant to form a fuel-lean fuel/oxidant mixture in a fuel-lean combustion zone. The remaining portion of fuel is mixed with the fuel-lean fuel/oxidant mixture downstream of the fuel-lean combustion zone, forming a substantially stoichiometric fuel/oxidant mixture. The stoichiometric fuel/oxidant mixture is ignited, forming a primary flame having high luminosity and low NO.sub.x emissions.
    Type: Grant
    Filed: March 26, 1996
    Date of Patent: October 20, 1998
    Assignee: Combustion Tec, Inc.
    Inventors: Mahendra L. Joshi, Patrick J. Mohr
  • Patent number: 5821644
    Abstract: A safety device for a passage closure, such as a garage door, having a drive, a maximum permissible load value which can be set, and a control device by which the drive can be switched off, switch-off occurring when the maximum permissible load value has been reached and a signal S.sub.2 is sent to the control device at a time T.sub.2. A sensor is disposed in the area of the leading edge of the closure. When the sensor encounters an obstacle, it emits a signal S.sub.1 to the control device at a time T.sub.1. Upon reaching the maximum permissible load, the control device determines a .DELTA.T based on T.sub.2 -T.sub.1, compares it to a preset value and if the preset value is exceeded, changes the direction of movement of the closure.
    Type: Grant
    Filed: December 7, 1993
    Date of Patent: October 13, 1998
    Inventor: Frank-Uwe Sommer
  • Patent number: 5799688
    Abstract: A pressure valve having a fluid inlet, a first chamber, a throughbore, a second chamber, a fluid outlet and a valve stem. The valve stem is mounted within a valve body and has several different diameters. A pressure condition within one or more of the chambers acts upon the valve stem to urge the stem into either an open position or a closed position, depending upon the design of the valve. The valve is particularly suitable for bypass valves, pressure regulating valves, over-pressure protection valves, lost-pressure protection valves, and other pressure-sensitive valve applications.
    Type: Grant
    Filed: April 13, 1995
    Date of Patent: September 1, 1998
    Assignee: Jetec Company
    Inventor: Gene G. Yie
  • Patent number: 5786575
    Abstract: A wrap tool having first and second coil regions and flange regions for inducing oscillating magnetic fields to fuse a plastic coupling having heating elements to a substrate. The first and second coil regions are wrapped around a selected plastic coupling and substrate to induce fusion currents causing melting and fusion of plastic pipes inserted into a magnetically energizable pipe coupling. The flange regions of the wrap tool are positioned adjacent each other overlappingly or inner surface to inner surface, permitting opposite current coil portions to cancel the other's magnetic fields and reduce coil inductance.
    Type: Grant
    Filed: December 20, 1995
    Date of Patent: July 28, 1998
    Assignee: Gas Research Institute
    Inventors: Randy J. Bleske, Joel D. Finegan
  • Patent number: 5770275
    Abstract: A process for producing a molecular sieve silica membrane comprising depositing a hybrid organic-inorganic polymer comprising at least one organic constituent and at least one inorganic constituent on a porous substrate material and removing at least a portion of the at least one organic constituent of the hybrid organic-inorganic polymer, forming a porous film.
    Type: Grant
    Filed: August 23, 1996
    Date of Patent: June 23, 1998
    Inventors: Narayan K. Raman, Charles Jeffrey Brinker
  • Patent number: 5768693
    Abstract: A method an apparatus for controlling frequency of a multi-channel transmitter. A reference frequency is generated and emitted to a thermally stable frequency discriminator. The thermally stable frequency discriminator emits a dc voltage to a plurality of individual oscillators. The individual oscillators in continuous wave mode or modulated by baseband signals are combined into a multi-channel signal at an intermediate range of frequencies. The multi-channel intermediate range of frequencies are preferably amplified and emitted as an output signal. At relatively lower frequencies, such as 4-6 GHz, up-conversion of the output signal is not necessary. At relatively higher frequencies, an up-converter can be used to employ a second thermally stable frequency discriminator.
    Type: Grant
    Filed: February 28, 1995
    Date of Patent: June 16, 1998
    Assignee: Telecommunications Equipment Corporation
    Inventor: Thomas T. Y. Wong
  • Patent number: 5746279
    Abstract: An apparatus and method are disclosed for the removal and replacement of the used drill bit after each perforation through casing, cement, and into rock while using a flexible drive shaft. This apparatus involves both a bayonet-style "quick connector" between the flexible shaft and the drill bit and a cartridge that holds the drill bits while they await their turn to be used. The apparatus also has a means for indexing the cartridge so that the flexible shaft can have access to each of the drill bits in the cartridge. The method disclosed involves the process of connecting the flexible shaft to the drill bit at the start of the perforating process, the disconnecting of the used bit at the end of the perforation, and the indexing of the cartridge so that the next drill bit is in line with the flexible shaft for the next perforation.
    Type: Grant
    Filed: February 20, 1996
    Date of Patent: May 5, 1998
    Assignee: Gas Research Institute
    Inventors: Kenneth Havlinek, Thomas D. MacDougall, Alan Sallwasser, Miles Jaroska, Duane LaDue, Wayne A. Tyler, Mario Flores, Mark L. Hinton, Thomas D. Svoboda, Michele Tesciuba
  • Patent number: 5743471
    Abstract: An apparatus for solid state shear extrusion pulverization of a polymeric material comprising an elongated hollow barrel having a feed zone, a heating zone adjacent to the feed zone, a powder formation zone adjacent to the heating zone, and a powder discharge zone adjacent to the powder formation zone. At least one screw is housed within the elongated hollow barrel. A hopper is provided for feeding the polymeric material into the feed zone of the elongated hollow barrel. Barrel heaters and coolers are provided for heating the polymeric material to a temperature less than its decomposition temperature in the heating zone and for maintaining the polymeric material below its melting point in the powder formation zone. The screw comprises a high shear screw section for applying normal and shear forces within the powder formation zone to form a powder of the solid state polymeric material.
    Type: Grant
    Filed: May 15, 1995
    Date of Patent: April 28, 1998
    Assignee: Illinois Institute of Technology
    Inventor: George Ivanov
  • Patent number: 5743245
    Abstract: An arrow rest preferably having three or more flanges that extend outward in a generally radial direction. The flanges are peripherally spaced with respect to each other and form a clearance cutout between flange surfaces that face or oppose each other. The flanges or another suitably shaped body form two or more clearance cutouts that each accommodate a different diameter of a differently sized arrow shaft.
    Type: Grant
    Filed: December 13, 1996
    Date of Patent: April 28, 1998
    Assignee: New Archery Products Corp.
    Inventor: Robert S. Mizek
  • Patent number: 5736268
    Abstract: A fuel cell stack power bus system which includes a plurality of current collectors mounted to the peripheral edge portion of a fuel cell stack end plate. The current collectors form lapped connections with a layered power bus which can be easily positioned to extend from any side of a fuel cell stack and which has improved heat transfer characteristics.
    Type: Grant
    Filed: September 26, 1996
    Date of Patent: April 7, 1998
    Assignee: M-C Power Corporation
    Inventor: Joseph M. Pondo
  • Patent number: 5733516
    Abstract: A process and system for removing hydrogen sulfide from a gaseous stream such as one of natural gas. A sour gas stream containing H.sub.2 S is contacted with a nonaqueous, water-insoluble sorbing liquor which comprises an organic solvent for elemental sulfur, dissolved elemental sulfur, an organic base to promote the reactions, and an organic solubilizing agent an agent suitable for maintaining the solubility of polysulfide intermediates which may otherwise separate when they are formed during operation of the process. Hydrogen sulfide (H.sub.2 S) gas is sorbed into this liquor and then reacts with the dissolved sulfur in the presence of the base to form polysulfide molecules. The solution is then sent to a reactor where sufficient residence time is provided to allow the polysulfide forming reactions to reach the desired degree of completion. From the reactor, the solution flows to a regenerator where the solution is oxidized (e.g., by contact with air), forming dissolved elemental sulfur and water.
    Type: Grant
    Filed: September 9, 1996
    Date of Patent: March 31, 1998
    Assignee: Gas Research Institute
    Inventor: David W. DeBerry
  • Patent number: 5725366
    Abstract: A process and apparatus for combustion of a fuel/oxidant mixture in which at least a portion of the fuel is preheated and, thereafter, burned with any remaining portion of fuel in a flame having fuel-rich zones, thereby forming soot within the resulting flame to produce a luminous, high heat transfer, low NO.sub.x flame.
    Type: Grant
    Filed: February 29, 1996
    Date of Patent: March 10, 1998
    Assignee: Institute of Gas Technology
    Inventors: Mark J. Khinkis, Hamid A. Abbasi, Roman E. Grosman
  • Patent number: 5725543
    Abstract: A medical instrument for removing deposits on the walls of arteries and/or veins having at least one partially hollow body that can be introduced into the arteries and/or veins and a plurality of cutting bodies with cutting edges for removal of the deposits. A base body protrudes at least partially into the partially hollow body and the cutting bodies and pivotally connected to the base body.
    Type: Grant
    Filed: May 23, 1995
    Date of Patent: March 10, 1998
    Inventor: Falah Redha
  • Patent number: 5725367
    Abstract: A method and apparatus for injecting fuel and oxidant into a combustion burner. At a fuel exit plane of a fuel discharge nozzle, fuel is discharged in a generally planar fuel layer which has an upper boundary and a lower boundary. At an oxidant exit plane, oxidant is preferably discharged in both a top layer along the upper boundary of the fuel layer and a bottom layer along the lower boundary of the fuel layer. In a downstream flow direction, the fuel and oxidant preferably converge in a generally vertical plane and diverge in a generally horizontal plane. The discharged fuel and oxidant form a fishtail or fan-shaped flame configuration. The fuel exit plane can be moved upstream or downstream with respect to the oxidant exit plane to vary the flame characteristics and the flame shape. A refractory manifold can be used to further enhance the fishtail or fan-shaped flame configuration.
    Type: Grant
    Filed: December 28, 1995
    Date of Patent: March 10, 1998
    Assignee: Combustion Tec, Inc.
    Inventors: Mahendra L. Joshi, Lee Broadway, Patrick J. Mohr
  • Patent number: 5722381
    Abstract: An apparatus for adjustably mounting an arrow rest wherein a pivot shaft is mounted within a through bore of a sleeve, so that the pivot shaft can pivot or rotate between a normal rest position and a maximum forward position. The sleeve is mounted with respect to a bracket that is fixed with respect to an archery bow riser. Opposing end portions of the pivot shaft extend beyond corresponding end surfaces of the sleeve. One of the end portions of the pivot shaft is housed within an end cap bore. A spring has one end foot attached or mounted with respect to the end cap and an opposing end foot attached or mounted with respect to the one end portion of the pivot shaft housed within the end cap bore. A pair of keeper elements and a wave washer or other spring element are attached to or mounted with respect to the pivot shaft to significantly reduce horizontal movement or longitudinal play of the pivot shaft with respect to the sleeve and thus of the arrow rest within a corresponding shooting window.
    Type: Grant
    Filed: February 27, 1997
    Date of Patent: March 3, 1998
    Assignee: New Archery Products Corp.
    Inventor: Robert S. Mizek
  • Patent number: 5720067
    Abstract: A system and method for installing metal deck framing. One or more deck panels are secured with respect to and between two elongated structural framing members to form a deck panel structure. The deck panel structure is then positioned between two primary structural members in a position such that each structural framing member is suspended from a support arm or a support structure that is supported by a corresponding one of the primary structural members. At least each corner portion of the deck panel structure can be mechanically adjusted to vary a vertical position of the deck panel structure.
    Type: Grant
    Filed: February 12, 1996
    Date of Patent: February 24, 1998
    Assignee: Multuloc International Systems Corporation
    Inventor: Kenneth R. Grearson
  • Patent number: 5713320
    Abstract: An apparatus and process for starting internal combustion engines having one to three cylinders by first activating a reverse direction motor to drive the power system of the engine in reverse to its normal operating direction until it is positioned at or near the backside of a prior compression stroke and then activating a starter motor, preferably at initial high torque, and continuing operation until the engine is started. The apparatus and process achieves a significant decrease in the size and power requirements for starters.
    Type: Grant
    Filed: January 11, 1996
    Date of Patent: February 3, 1998
    Assignee: Gas Research Institute
    Inventors: Joseph Lawrence Pfaff, Scott Lee Wesenberg
  • Patent number: D390952
    Type: Grant
    Filed: July 26, 1996
    Date of Patent: February 17, 1998
    Assignee: Ivy Green Corporation
    Inventors: Michael T. Ward, Timothy J. Ward
  • Patent number: D390953
    Type: Grant
    Filed: July 29, 1996
    Date of Patent: February 17, 1998
    Assignee: Ivy Green Corporation
    Inventors: Michael T. Ward, Timothy J. Ward
  • Patent number: D391232
    Type: Grant
    Filed: May 5, 1995
    Date of Patent: February 24, 1998
    Assignee: Rittal-Werk Rudolf Loh GmbH & Co. KG
    Inventors: Marc Hartel, Jurgen Zachrai, Horst Besserer