Patents Represented by Attorney Brian R. Tumm
  • Patent number: 5647708
    Abstract: This invention pertains to bracing systems for bracing especially massive objects while the objects are being shipped, typically in a rail car. The invention is directed to packing arrangements where first and second end arrays of rolls of product are disposed in first and second ends of the rail car, with sets of rolls proximate but spaced from each other at the central doorway. Each pair of side-by-side rolls in a set includes a cavity therebetween, facing the opposing set. Wedges are placed in the cavities such that each set of rolls, with wedges in the cavities, presents a generally planar composite surface between the rolls at the loci of closest approach to the opposing rolls. Thus, with the wedges in place, the rolls, in combination, present two generally planar, typically parallel, and more-or-less continuous composite surfaces facing each other across the space separating the two sets of rolls.
    Type: Grant
    Filed: July 12, 1995
    Date of Patent: July 15, 1997
    Assignee: Hayes Manufacturing Group Inc.
    Inventor: James C. Letts, III
  • Patent number: 5643396
    Abstract: This invention pertains to apparatus for use in constructing a garment including a stretched elastic. Specifically, the invention contemplates incorporating stretched elastic into a continuous web, including one or more segments which exert retractive forces in directions counterproductive to the function of either the web, the garment, or both, and nullifying that portion of the stretched elastic which would be counterproductive. The elastics may be cut at appropriate loci. The stretch may be intermittently reduced or eliminated on one or more selected ones of the elastics as the elastics are incorporated into the web. A special coating may be used on the processing rolls to maintain the width dimension of the web at loci disposed after incorporation of elastic stretched across the transverse dimension of the web. Transverse bonds may be formed on the web using a rotary carrying drum, and energy application devices which rotate with the drum, to increase bond forming time.
    Type: Grant
    Filed: May 30, 1995
    Date of Patent: July 1, 1997
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Gregory John Rajala, Paul Daniel Suke, Steven Craig Gehling, Gerald Leigh Rabe
  • Patent number: 5637507
    Abstract: A tetraethyl orthosilicate-based, sol-gel glass composition with additives selected for various applications. The composition is made by mixing ethanol, water, and tetraethyl orthosilicate, adjusting the pH into the acid range, and aging the mixture at room temperature. The additives, such as an optical indicator, filler, or catalyst, are then added to the mixture to form the composition which can be applied to a substrate before curing. If the additive is an indicator, the light-absorbing characteristics of which vary upon contact with a particular analyte, the indicator can be applied to a lens, optical fiber, reagant strip, or flow cell for use in chemical analysis. Alternatively, an additive such as alumina particles is blended into the mixture to form a filler composition for patching cracks in metal, glass, or ceramic piping.
    Type: Grant
    Filed: February 7, 1994
    Date of Patent: June 10, 1997
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: George G. Wicks, Ronald R. Livingston, Lewis C. Baylor, Michael J. Whitaker, Patrick E. O'Rourke
  • Patent number: 5637117
    Abstract: A metal current collecting substrate for an air cathode in an electrochemical metal air cell is provided for, wherein the substrate is hardened by one of the steps of sandblasting, shotblasting, plastic deformation of the substrate below the recrystallization temperature range of the metal thereof, and heating the substrate to above the transformation temperature of the metal thereof followed by quenching the substrate below the transformation temperature of the metal thereof. Catalytically active materials, most preferably a mixture of carbon and manganese dioxide, are pressed or otherwise disposed upon the hardened substrate. The substrate is capable of being connected to electrical circuitry. Most preferably, the substrate is a metal screen that has been hardened, roughened and pitted by sandblasting before the catalytically active materials are disposed thereupon, and before the substrate is incorporated into an electrochemical metal air cell.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: June 10, 1997
    Assignee: Rayovac Corporation
    Inventors: Robert B. Dopp, John E. Oltman, Joseph L. Passaniti
  • Patent number: 5613368
    Abstract: The invention resides in improvements to refrigeration systems which rely on circulation of refrigerant gas through compression and expansion phases, and thereby discharging heat from a fluid to be cooled. The invention includes a subcooler (38) in the refrigerant loop, downstream of the refrigerant condenser (34) and a gas trap (36) between the condenser (34) and the subcooler (38), that assures temperature drop in the subcooler (38). The invention also comprehends a shut-off valve (44) between the compressor and the heat source heat exchanger (28). The invention further includes a high capacity-to-volume oil to air heat exchanger (48), for cooling the lubricating oil in the oil loop (26). Preferred refrigerant is ammonia. Incorporating the above improvements into refrigeration systems enables an overall reduction in system sizing. Such systems, having heat exchange capacity of at least 200,000 Btu/hr., up to at least 500,000 Btu/hr.
    Type: Grant
    Filed: November 16, 1995
    Date of Patent: March 25, 1997
    Assignee: Omega Enterprises, Inc.
    Inventors: Todd T. Marohl, Robert Burdick, Ronald A. Cole
  • Patent number: 5607796
    Abstract: This invention pertains to rechargeable zinc alkaline electrochemical cells. In cells of the invention, the anode current collector comprises copper, and from about 0.5% by weight to about 11% silicon. Preferred compositions for the anode current collector comprise from about 1% by weight silicon to about 6% by weight silicon. Cells embodying anode current collectors of the invention exhibit reduced current flow under anode polarization in alkaline conditions, and reduced cell expansion under abusive electrical drain conditions. The cells are less susceptible to oxidation of the anode current collector, which is typically irreversible, than known brass anode current collectors. In general, cells of the invention are less susceptible to, and generally do not exhibit as much, irreversible chemical reaction activity, as conventional current collectors, especially oxidation of copper at the anode current collector.
    Type: Grant
    Filed: June 24, 1996
    Date of Patent: March 4, 1997
    Assignee: Rayovac Corporation
    Inventors: Robert J. Jacus, Janna L. Rose
  • Patent number: 5590539
    Abstract: The invention resides in improvements to refrigeration systems which rely on circulation of refrigerant gas through compression and expansion phases, and thereby discharging heat from a fluid to be cooled. The refrigeration systems of the invention include a refrigerant loop (24) and a lubricating oil loop (26). The oil loop includes a high capacity-to-volume oil to air oil cooler (48), for cooling the lubricating oil in the oil loop (26). The oil cooler includes a fan, and a variable speed drive for controlling the speed of rotation of the fan. The Preferred refrigerant is ammonia. Incorporating the above improvements into refrigeration systems enables an overall reduction in system sizing, and constancy in the temperature of the oil at the exit of the oil cooler. Such systems, having heat exchange capacity of at least 200,000 Btu/hr., up to at least 500,000 Btu/hr.
    Type: Grant
    Filed: November 16, 1995
    Date of Patent: January 7, 1997
    Assignee: Omega Enterprises Inc.
    Inventors: Todd T. Marohl, Robert Martin, Russell Gossen
  • Patent number: 5591541
    Abstract: This invention pertains to alkaline electrochemical cells, typically to metal-air cells of the button-type. Non-reactive elements of cells of the invention are thinner than corresponding non-reactive elements of prior art cells. Such elements can be made thinner because of improved structures of such elements. The anode can is made from a metal strip structure having a higher steel content. The cathode can has a modified temper, which improves relative stiffness and rigidity while retaining sufficient ductility. The seal disposed between the anode can and the cathode can is made thinner. Structure of the corner of the cathode can between the bottom and the side wall is improved. By so reducing the thicknesses of non-reactive elements of the cell, and thus the volume occupied by such non-reactive elements, the fraction of the cell devoted to holding electrochemically reactive anode material therein is increased, with corresponding increase in the milliampere hour capacity of the cell.
    Type: Grant
    Filed: May 5, 1995
    Date of Patent: January 7, 1997
    Assignee: Rayovac Corporation
    Inventor: John E. Oltman
  • Patent number: 5589109
    Abstract: Solid divalent silver oxide is reacted in hot aqueous alkaline reaction medium with a solid bismuth component and a reducing agent. The reaction product comprises a novel compound containing silver, bismuth, and oxygen, which is used in making cathode pellets for use in alkaline electrochemical cells. The cells exhibit low internal impedance and substantially single voltage discharge characteristic of monovalent silver oxide while retaining a significant portion of the coulombic capacity a of divalent silver cathode, without toxicity problems attendant cathodes containing lead and/or cadmium.
    Type: Grant
    Filed: February 10, 1995
    Date of Patent: December 31, 1996
    Assignee: Rayovac Corporation
    Inventors: Joseph L. Passaniti, El-Sayed A. Megahed, Nuri A. Zreiba
  • Patent number: 5587259
    Abstract: A metal current collecting substrate for an air cathode in an electrochemical metal air cell is provided for, wherein the substrate is hardened by one of the steps of sandblasting, shotblasting, plastic deformation of the substrate below the recrystallization temperature range of the metal thereof, and heating the substrate to above the transformation temperature of the metal thereof followed by quenching the substrate below the transformation temperature of the metal thereof. Catalytically active materials, most preferably a mixture of carbon and manganese dioxide, are pressed or otherwise disposed upon the hardened substrate. The substrate is capable of being connected to electrical circuitry. Most preferably, the substrate is a metal screen that has been hardened, roughened and pitted by sandblasting before the catalytically active materials are disposed thereupon, and before the substrate is incorporated into an electrochemical metal air cell.
    Type: Grant
    Filed: March 9, 1994
    Date of Patent: December 24, 1996
    Assignee: Rayovac Corporation
    Inventors: Robert B. Dopp, John E. Oltman, Joseph L. Passaniti
  • Patent number: 5582932
    Abstract: This invention pertains to alkaline electrochemical cells, typically to metal-air cells of the button-type. Non-reactive elements of cells of the invention are thinner than corresponding non-reactive elements of prior art cells. Such elements can be made thinner because of improved structures of such elements. The anode can is made from a metal strip structure having a higher steel content. The cathode can has a modified temper, which improves relative stiffness and rigidity while retaining sufficient ductility. The seal disposed between the anode can and the cathode can is made thinner. Structure of the corner of the cathode can between the bottom and the side wall is improved. By so reducing the thicknesses of non-reactive elements of the cell, and thus the volume occupied by such non-reactive elements, the fraction of the cell devoted to holding electrochemically reactive anode material therein is increased, with corresponding increase in the milliampere hour capacity of the cell.
    Type: Grant
    Filed: May 5, 1995
    Date of Patent: December 10, 1996
    Assignee: Rayovac Corporation
    Inventors: John E. Oltman, John D. Burns
  • Patent number: 5571590
    Abstract: This invention pertains to papermaking felts, methods of making such felts, methods of using the felts, and methods of making paper using such felts. A felt of the invention contains at least one substrate web having a fuse-bonded joint extending across the width of the felt. The joint is preferably formed by superposing, onto each other, end portions of a flat-woven substrate web element, with the end portions extending away from the ends in a common direction, and concurrently severing the ends from the end portions, and fuse bonding the end portions to each other, along a common cut line.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: November 5, 1996
    Assignee: Appleton Mills
    Inventors: Gary V. Schultz, Dennis J. Le Gault
  • Patent number: 5544851
    Abstract: This invention pertains to brackets for mounting fixtures and the like to buildings, especially at elevated locations and to servicing such fixtures. Brackets of the invention include a wall mount subassembly for mounting directly to e.g. a vertical wall of the building, and an interface subassembly which serves as an interface between the wall mount subassembly and a fixture, optionally also a fixture holder. The interface subassembly preferably is mounted for pivotation with respect to the wall mount subassembly, whereby the fixture secured to the interface subassembly can be pivoted toward or over the roof or other safe place on the building for installation or servicing of the fixture or fixture holder. In some embodiments, the combination of the fixture, fixture holder, and interface subassembly is readily removed, or installed onto, the wall mount subassembly as a unit.
    Type: Grant
    Filed: October 17, 1994
    Date of Patent: August 13, 1996
    Inventor: Steven A. Moore
  • Patent number: 5537865
    Abstract: This invention pertains to transmission testers, and specifically to automatic transmission testers, and methods for their use. The headstock is mounted for pivotation about a vertical axis. A novel eddy current brake provides active control of loading of the transmission while the transmission is being tested. The prime mover is preferably an electric motor, with motor controls, adapted to temporarily suspend acceleration of the speed when the transmission shifts gears.
    Type: Grant
    Filed: January 3, 1995
    Date of Patent: July 23, 1996
    Inventor: Duane E. Shultz
  • Patent number: 5529635
    Abstract: An ultrasonic cleaning method for cleaning the interior surfaces of tubes. The method uses an ultrasonic generator and reflector each coupled to opposing ends of the open-ended, fluid-filled tube. Fluid-tight couplings seal the reflector and generator to the tube, preventing leakage of fluid from the interior of the tube. The reflector and generator are operatively connected to actuators, whereby the distance between them can be varied. When the distance is changed, the frequency of the sound waves is simultaneously adjusted to maintain the resonant frequency of the tube so that a standing wave is formed in the tube, the nodes of which are moved axially to cause cavitation along the length of the tube. Cavitation maximizes mechanical disruption and agitation of the fluid, dislodging foreign material from the interior surface.
    Type: Grant
    Filed: July 19, 1994
    Date of Patent: June 25, 1996
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventor: D. MacKenzie C. Odell
  • Patent number: 5505829
    Abstract: A method and apparatus for separating a gaseous mixture of chemically identical but physically different molecules based on their polarities. The gaseous mixture of molecules is introduced in discrete quantities into the proximal end of a porous glass molecular. The molecular sieve is exposed to microwaves to excite the molecules to a higher energy state from a lower energy state, those having a higher dipole moment being excited more than those with a lower energy state. The temperature of the sieve kept cold by a flow of liquid nitrogen through a cooling jacket so that the heat generated by the molecules colliding with the material is transferred away from the material. The molecules thus alternate between a higher energy state and a lower one, with the portion of molecules having the higher dipole moment favored over the others. The former portion can then be extracted separately from the distal end of the molecular sieve.
    Type: Grant
    Filed: January 6, 1993
    Date of Patent: April 9, 1996
    Inventor: Eliel Villa-Aleman
  • Patent number: 5489536
    Abstract: A method for making a composition for measuring the concentration of chloated aromatic compounds in aqueous fluids, and an optical probe for use with the method. The composition comprises a hydrophobic polymer matrix, preferably polyamide, with a fluorescent indicator uniformly dispersed therein. The indicator fluoresces in the presence of the chlorinated aromatic compounds with an intensity dependent on the concentration of these compounds in the fluid of interest, such as 8-amino-2-naphthalene sulfonate. The probe includes a hollow cylindrical housing that contains the composition in its distal end. The probe admits an aqueous fluid to the probe interior for exposure to the composition. An optical fiber transmits excitation light from a remote source to the composition while the indicator reacts with chlorinated aromatic compounds present in the fluid. The resulting fluorescence light signal is reflected to a second optical fiber that transmits the light to a spectrophotometer for analysis.
    Type: Grant
    Filed: September 13, 1994
    Date of Patent: February 6, 1996
    Assignee: The United States of America as represented by the Department of Energy
    Inventor: Amy A. Ekechukwu
  • Patent number: 5482688
    Abstract: A two-step process for dissolving plutonium metal, which two steps can be carried out sequentially or simultaneously. Plutonium metal is exposed to a first mixture containing approximately 1.0M-1.67M sulfamic acid and 0.0025M-0.1M fluoride, the mixture having been heated to a temperature between 45.degree. C. and 70.degree. C. The mixture will dissolve a first portion of the plutonium metal but leave a portion of the plutonium in an oxide residue. Then, a mineral acid and additional fluoride are added to dissolve the residue. Alteratively, nitric acid in a concentration between approximately 0.05M and 0.067M is added to the first mixture to dissolve the residue as it is produced. Hydrogen released during the dissolution process is diluted with nitrogen.
    Type: Grant
    Filed: February 7, 1994
    Date of Patent: January 9, 1996
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: Michael A. Vest, Samuel D. Fink, David G. Karraker, Edwin N. Moore, H. Perry Holcomb
  • Patent number: 5480549
    Abstract: An apparatus and method for supplying a vapor-phase nutrient to contaminated soil for in situ bioremediation. The apparatus includes a housing adapted for containing a quantity of the liquid nutrient, a conduit in fluid communication with the interior of the housing, means for causing a gas to flow through the conduit, and means for contacting the gas with the liquid so that a portion thereof evaporates and mixes with the gas. The mixture of gas and nutrient vapor is delivered to the contaminated site via a system of injection and extraction wells configured to the site. The mixture has a partial pressure of vaporized nutrient that is no greater than the vapor pressure of the liquid. If desired, the nutrient and/or the gas may be heated to increase the vapor pressure and the nutrient concentration of the mixture. Preferably, the nutrient is a volatile, substantially nontoxic and nonflammable organic phosphate that is a liquid at environmental temperatures, such as triethyl phosphate or tributyl phosphate.
    Type: Grant
    Filed: January 25, 1994
    Date of Patent: January 2, 1996
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: Brian B. Looney, Kenneth H. Lombard, Terry C. Hazen, Susan M. Pfiffner, Tommy J. Phelps, James W. Borthen
  • Patent number: 5473953
    Abstract: A portable, remotely-controlled inspection crawler for use along the walls of tanks, vessels, piping and the like. The crawler can be configured to use a vacuum chamber for supporting itself on the inspected surface by suction or a plurality of magnetic wheels for moving the crawler along the inspected surface. The crawler is adapted to be equipped with an ultrasonic probe for mapping the structural integrity or other characteristics of the surface being inspected. Navigation of the crawler is achieved by triangulation techniques between a signal transmitter on the crawler and a pair of microphones attached to a fixed, remote location, such as the crawler's deployment unit. The necessary communications are established between the crawler and computers external to the inspection environment for position control and storage and/or monitoring of data acquisition.
    Type: Grant
    Filed: July 9, 1993
    Date of Patent: December 12, 1995
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventor: D. Keith Appel