Patents by Inventor Joseph H. Evans

Joseph H. Evans has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 10353353
    Abstract: Tools and methods are provided for supplementing an optimization solution for an objective function based on a model of one or more hydrocarbon refining and/or conversion and/or chemical production processes with supporting analysis. The supporting analysis can illustrate for a user how the nature of the feed(s) and/or the selected processing conditions and/or the quality of the product(s) contributes to the optimized solution. A user interface is also provided to facilitate viewing of the information by a user. The supporting analysis can allow a user to understand the factors in the optimized solution that contribute in a significant way.
    Type: Grant
    Filed: September 28, 2016
    Date of Patent: July 16, 2019
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Alison Cozad, William A. Docter, Joseph W. Evans, Narendranath Y. Gaitonde, John M. Righi, John D. Terry, Kenneth H. Tyner, David S. Bergeson, Henry F. Demena, Katherine L. Weiger, Douglas B. Doughty, Anthony M. Ciravolo
  • Patent number: 5476682
    Abstract: An antifogging plastic material is disclosed that is particularly suitable for use as a disposable fog-resistant lens. The lens material comprises a substantially transparent polyester substrate; a layer of polyvinylidene chloride-containing polymer on the polyester substrate; a water permeable colloid layer on the polyvinylidene chloride-containing layer; and a polyvinyl alcohol-containing layer on the water permeable colloid layer.
    Type: Grant
    Filed: December 3, 1993
    Date of Patent: December 19, 1995
    Assignee: Rexam Industries Corp.
    Inventor: Joseph H. Evans
  • Patent number: 5324573
    Abstract: An antifogging plastic material is disclosed that is particularly suitable for use as a disposable fog-resistant lens. The lens material comprises a substantially transparent polyester substrate; a layer of polyvinylidene chloride-containing polymer on the polyester substrate; a water permeable colloid layer on the polyvinylidene chloride-containing layer; and a polyvinyl alcohol-containing layer on the water permeable colloid layer.
    Type: Grant
    Filed: December 18, 1992
    Date of Patent: June 28, 1994
    Assignee: Rexham Industries Corp.
    Inventor: Joseph H. Evans
  • Patent number: 5178797
    Abstract: Conductive polymer compositions comprise carbon black or graphite dispersed in a polymer and further comprise an arc-controlling additive such as alumina hydrate. Such compositions have improved performance when subjected to electrical stress and are, therefore, particularly useful in circuit protection devices.
    Type: Grant
    Filed: September 16, 1991
    Date of Patent: January 12, 1993
    Assignee: Raychem Corporation
    Inventor: Joseph H. Evans
  • Patent number: 5049850
    Abstract: Conductive polymer compositions comprise carbon black or graphite dispersed in a polymer and further comprise an arc-controlling additive such as alumina hydrate. Such compositions have improved performance when subjected to electrical stress and are, therefore, particularly useful in circuit protection devices.
    Type: Grant
    Filed: November 21, 1990
    Date of Patent: September 17, 1991
    Assignee: Raychem Corporation
    Inventor: Joseph H. Evans
  • Patent number: 4426999
    Abstract: A high performance, lightweight solar collector is disclosed. The collector consists of an upper glazing, a central fluid panel and a lower layer of insulating material. A fluid manifold is joined to each end of the panel and directs a fluid into and out of the panel. The glazing, panel and insulating layer are joined together and held in position by an attaching assembly and rail members.
    Type: Grant
    Filed: February 18, 1982
    Date of Patent: January 24, 1984
    Assignee: Ramada Energy Systems, Inc.
    Inventors: Joseph H. Evans, Jeffrey J. Hatman, William E. Clark
  • Patent number: 4352083
    Abstract: Circuit protection devices which comprise two columnar electrodes and a conductive polymer element, at least a part of which is a PTC element. The device is so constructed that if a hot zone forms in the PTC element when current is passed through the device, it forms at a location away from the electrodes, thus increasing the useful life of the device. In one preferred embodiment, the conductive polymer element has an intermediate portion of increased resistance, thus causing the hot zone to be located at or near the intermediate portion. The intermediate portion may be of reduced size and/or be composed of conductive polymer of relatively high resistivity.
    Type: Grant
    Filed: April 21, 1980
    Date of Patent: September 28, 1982
    Assignee: Raychem Corporation
    Inventors: Lee M. Middleman, Joseph H. Evans, Arthur E. Blake, Victor A. Scheff
  • Patent number: 4329726
    Abstract: Circuit protection devices comprising PTC elements, and circuits containing such devices. The devices, which are particularly useful in circuits carrying a steady state current of 0.5 amp or more, can protect the circuit against excessive current, e.g. as a result of a short or a voltage surge, or against excessive temperature, or both. The PTC element is composed of a material, preferably a conductive polymer, having a resistivity less than 10 ohm. cm in the normal operating condition of the circuit, and the device comprises electrodes such that current flows through the PTC element over an area of equivalent diameter d with an average path length t such that d/t is at least 2. The circuit has a normal operating condition in which the device has a low resistance and is in stable thermal equilibrium with its surroundings; however, when a fault condition occurs, the device generates heat by I.sup.
    Type: Grant
    Filed: November 30, 1979
    Date of Patent: May 11, 1982
    Assignee: Raychem Corporation
    Inventors: Lee M. Middleman, Joseph H. Evans, Donald F. Pettengill
  • Patent number: 4317027
    Abstract: Electrical devices which comprise two planar electrodes and a conductive polymer element, at least a part of which is a PTC element. The conductive polymer element has an intermediate portion of increased resistance, resulting from the presence of insulating or high resistance portions within the conductive polymer element, so that when a hot zone is formed in the PTC element, it is located at or near the intermediate portion, away from the electrodes.
    Type: Grant
    Filed: April 21, 1980
    Date of Patent: February 23, 1982
    Assignee: Raychem Corporation
    Inventors: Lee M. Middleman, Joseph H. Evans
  • Patent number: 4238812
    Abstract: Circuit protection devices comprising PTC elements, and circuits containing such devices. The devices, which are particularly useful in circuits carrying a steady state current of 0.5 amp or more, can protect the circuit against excessive current, e.g. as a result of a short or a voltage surge, or against excessive temperature, or both. The PTC element is composed of a material, preferably a conductive polymer, having a resistivity less than 10 ohm. cm in the normal operating condition of the circuit, and the device comprises electrodes such that current flows through the PTC element over an area of equivalent diameter d with an average path length t such that d/t is at least 2. The circuit has a normal operating condition in which the device has a low resistance and is in stable thermal equilibrium with its surroundings; however, when a fault condition occurs, the device generates heat by I.sup.
    Type: Grant
    Filed: December 1, 1978
    Date of Patent: December 9, 1980
    Assignee: Raychem Corporation
    Inventors: Lee M. Middleman, Joseph H. Evans, Donald F. Pettengill
  • Patent number: 4135553
    Abstract: A recoverable tubular article comprising an elastomeric sleeve held in a radially expanded or extended condition and capable of recovering to its pre-expanded condition of smaller diameter upon the removal of an outer restraint, an outer restraint, essentially tubular in configuration, bonded to said elastomeric sleeve, said bond between the sleeve and the restraint being sufficiently strong to retain the elastomeric sleeve in its expanded condition under ordinary conditions of storage and susceptible to attack by solvents weakening the bond sufficiently to allow the elastomeric sleeve to peel away from the restraint and recover to its original state.
    Type: Grant
    Filed: June 16, 1975
    Date of Patent: January 23, 1979
    Assignee: Raychem Corporation
    Inventors: Joseph H. Evans, Richard B. Wolfe
  • Patent number: 4070746
    Abstract: A recoverable tubular article comprising an elastomeric sleeve held in a radially expanded or extended condition and capable of recovering to its pre-expanded condition of smaller diameter upon the removal of an outer restraint, an outer restraint, essentially tubular in configuration, bonded to said elastomeric sleeve, said bond between the sleeve and the restraint being sufficiently strong to retain the elastomeric sleeve in its expanded condition under ordinary conditions of storage and susceptible to attack by solvents weakening the bond sufficiently to allow the elastomeric sleeve to peel away from the restraint and recover to its original state.
    Type: Grant
    Filed: September 3, 1976
    Date of Patent: January 31, 1978
    Assignee: Raychem Corporation
    Inventors: Joseph H. Evans, Richard B. Wolfe
  • Patent number: 4032010
    Abstract: A carrier having substantially flat projections which extend from the carrier to snugly and slidably bear heat recovered sleeves thereby conforming to the flattened configuration of the projections. After positioning generally tubular heat recoverable sleeves over the projections and partial recovery of the same, printed information may be easily imparted to the sleeves on a modified typewriter or the like. The sleeves may then be removed from the projections and employed as identifying markers for electrical wire or other like articles to be marked. The sleeves may be further heat recovered in position on the marked article to snugly fit thereon.
    Type: Grant
    Filed: July 23, 1975
    Date of Patent: June 28, 1977
    Assignee: Raychem Corporation
    Inventor: Joseph H. Evans
  • Patent number: 3996888
    Abstract: An apparatus for lubricating and/or cleaning a heated fuser roller in a heat-pressure fusing system for electrophotographic copying. The apparatus includes a lubricating and/or cleaning means in contact with the heated fuser roll, the means including a cross-linked polymeric material on its outer surface. The polymeric material may have a leachable lubricating material dispersed therein, for controlled lubrication of the fuser roller. After depletion of the lubricating material, the cross-linked polymeric material then functions to remove and collect the toner particles from the surface of the toner fuser roller. The apparatus is preferably mounted in contact with the fuser roller by a means which permits easy removal and replacement in the field, after the lubricant has been depleted or the polymeric material has become saturated with toner particles.
    Type: Grant
    Filed: July 18, 1974
    Date of Patent: December 14, 1976
    Assignee: Raychem Corporation
    Inventors: Clyde A. Lofdahl, Joseph H. Evans, Dave D. Nyberg
  • Patent number: 3988399
    Abstract: Described herein are articles which are heat recoverable in involute fashion to an overlapping, generally cylindrical configuration and which are useful as wrap-around sleeves for wires, cables, cable splices and the like. Also described are articles initially heat recoverable to an elongate S-shaped configuration, which latter can be wrapped about an elongate substrate, the edge portions thereof interlocked, and heat recovered to form a protective closure. The articles of the invention comprise a molecularly oriented unitary polymeric layer which has been differentially annealed while restrained against dimensional change and cross-linked to provide an anisotropic gradient from a first to a second primary face of the layer through the thickness thereof. Subsequently, when the article is heated to recovery temperature, regions of high anisotropy adjacent one primary face of the layer shrink.
    Type: Grant
    Filed: June 10, 1974
    Date of Patent: October 26, 1976
    Assignee: Raychem Corporation
    Inventor: Joseph H. Evans
  • Patent number: 3985852
    Abstract: Method of making marker assemblies comprising an elongate denticule whose flat, pendent tines bear in snug and slidable relation heat recovered sleeves which conform to the flattened configuration of the tines. After positioning generally tubular heat recoverable sleeves over the pendent tines and recovery of the same, printed information may be imparted to the tine-borne sleeves, which thereafter may be removed from the denticular support and employed as identifying markers for electrical wire and the like.
    Type: Grant
    Filed: May 27, 1975
    Date of Patent: October 12, 1976
    Assignee: Raychem Corporation
    Inventor: Joseph H. Evans