Patents by Inventor Stephen Allen

Stephen Allen 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: 6015450
    Abstract: Methanol emissions in the CO.sub.2 vent from a synthesis gas unit in an ammonia or hydrogen plant are reduced by contacting raw synthesis gas from a low temperature shift converter with recycled stripped condensate to absorb methanol. The synthesis gas is treated in a purification unit to form the CO.sub.2 vent of reduced methanol content. The condensate from the contacting step is steam stripped to form a process steam stream suitable for feed to the reformer and a stripped process condensate stream suitable for offsites polishing, a portion of which is recycled for contacting the raw synthesis gas.
    Type: Grant
    Filed: August 13, 1998
    Date of Patent: January 18, 2000
    Assignee: The M. W. Kellogg Company
    Inventors: Girish Chimanlal Joshi, Stephen Allen Noe
  • Patent number: 5958039
    Abstract: The stack pointer is used for generating the next unutilized location in the stack memory device in order to indicate where a current value in the program counter is to be written. The stack pointer also generates a directly preceding location to the next unutilized location in order to read the last value of the program counter that was written to the stack memory device. The stack pointer will select the next unutilized location in the stack memory device for a write operation and the directly preceding location to the next unutilized location in the stack memory device for a read operation. The stack pointer will further perform either a post increment or post decrement operation on the next unutilized location in the stack memory device after execution of a current instruction.
    Type: Grant
    Filed: October 28, 1997
    Date of Patent: September 28, 1999
    Assignee: Microchip Technology Incorporated
    Inventors: Stephen Allen, Igor Wojewoda
  • Patent number: 5868070
    Abstract: A method for applying solder paste on tape carrier package component sites of a printed circuit board is disclosed. In accordance with a method and system of the present invention, a stencil having multiple openings for each device pad on the printed circuit board is provided. Each of the openings is approximately 0.012".times.0.0053" in size. The stencil is then secured in a fixed position directly above a printed circuit board. Finally, solder paste is selectively applied to the printed circuit board through the stencil with an applicator.
    Type: Grant
    Filed: May 19, 1997
    Date of Patent: February 9, 1999
    Assignee: International Business Machines Corporation
    Inventor: Stephen Allen Barlow
  • Patent number: 5851648
    Abstract: Absorbent foams materials that are capable of acquiring and distributing aqueous fluids, especially discharged body fluids such as urine. These absorbent foams combine relatively high capillary absorption pressures and capacity-per-weight properties that allow them to acquire fluid, with or without the aid of gravity. These absorbent foams also give up this fluid efficiently to higher absorption pressure storage materials, including foam-based absorbent fluid storage components, without collapsing. These absorbent foams are made by polymerizing high internal phase emulsions (HIPEs).
    Type: Grant
    Filed: May 14, 1997
    Date of Patent: December 22, 1998
    Assignee: The Procter & Gamble Company
    Inventors: Keith Joseph Stone, Thomas Allen DesMarais, Gary Dean La Von, Stephen Allen Goldman, Paul Seiden
  • Patent number: 5807525
    Abstract: An apparatus and process are disclosed for optimizing the repetitive steps in a solid-phase oligonucleotide synthesis by continuous optical scanning of the effluent stream from the reaction module and by computerized processing and implementation of the scanning data.
    Type: Grant
    Filed: February 29, 1996
    Date of Patent: September 15, 1998
    Assignee: Hybridon, Inc.
    Inventors: Stephen Allen, Hubert Koster, Edward Ashare, Donald W. Euwart, Jennifer Fernandes
  • Patent number: 5786395
    Abstract: Absorbent foams materials that are capable of acquiring and distributing aqueous fluids, especially discharged body fluids such as urine. These absorbent foams combine relatively high capillary absorption pressures and capacity-per-weight properties that allow them to acquire fluid, with or without the aid of gravity. These absorbent foams also give up this fluid efficiently to higher absorption pressure storage materials, including foam-based absorbent fluid storage components, without collapsing. These absorbent foams are made by polymerizing high internal phase emulsions (HIPEs).
    Type: Grant
    Filed: August 13, 1996
    Date of Patent: July 28, 1998
    Assignee: The Procter & Gamble Company
    Inventors: Keith Joseph Stone, Thomas Allen DesMarais, John Collins Dyer, Bryn Hird, Gary Dean La Von, Stephen Allen Goldman, Michelle Renee Peace, Paul Seiden
  • Patent number: 5744506
    Abstract: Low density collapsed absorbent foams materials that, upon contact with aqueous fluids, in particular urine, can expand and absorb these fluids. These low density foams typically have an expanded thickness from about 6 to about 10 times the thickness of the foams in their collapsed state. These low density foams are made by polymerizing high internal phase emulsions (HIPEs) where the volume to weight ratio of the water phase to the oil phase is in the range of from about 55:1 to about 100:1.
    Type: Grant
    Filed: September 26, 1996
    Date of Patent: April 28, 1998
    Assignee: The Procter & Gamble Company
    Inventors: Stephen Allen Goldman, Michelle Renee Peace, Paul Seiden
  • Patent number: 5741581
    Abstract: Low density collapsed absorbent foams materials that, upon contact with aqueous fluids, in particular urine, can expand and absorb these fluids. These low density foams typically have an expanded thickness from about 6 to about 10 times the thickness of the foams in their collapsed state. These low density foams are made by polymerizing high internal phase emulsions (HIPEs) where the volume to weight ratio of the water phase to the oil phase is in the range of from about 55:1 to about 100:1.
    Type: Grant
    Filed: May 28, 1996
    Date of Patent: April 21, 1998
    Assignee: The Procter & Gamble Company
    Inventors: Thomas Allen DesMarais, Keith Joseph Stone, John Collins Dyer, Bryn Hird, Stephen Allen Goldman, Paul Seiden
  • Patent number: 5714156
    Abstract: The invention relates to an absorbent gelling material comprising a dry mixture of at least a first type of hydrogel-forming particles and a second type of hydrogel-forming particles. The absorbent gelling material in accordance with the invention is characterized in that the first type of hydrogel-forming particles has an Absorption Against Pressure value which is higher than the Absorption Against Pressure value of the second type of hydrogel-forming particles, the weight of the second type of hydrogel-forming particles forming at least 10% of the combined weight of the first and second type of hydrogel forming particles. The invention also relates to a method for making such material.
    Type: Grant
    Filed: January 6, 1997
    Date of Patent: February 3, 1998
    Assignee: The Procter & Gamble Company
    Inventors: Mattias Schmidt, Manfred Plischke, Stephen Allen Goldman
  • Patent number: 5688335
    Abstract: Contaminated material is treated with heat and steam to remove halogenated organic compounds from the material. The heating temperature can be lowered by admixing an additive with the contaminated material. A short passage of steam at a flow rate of about at least 0.5 pounds of water by weight per minute per ton of soil immediately following the heating and holding stage, substantially removes the halogenated organic contaminants to below ten parts per million in the treated material.
    Type: Grant
    Filed: September 5, 1995
    Date of Patent: November 18, 1997
    Assignees: General Electric Company, Maxymillan Technologies, Inc.
    Inventors: Herman Otto Krabbenhoft, Jimmy Lynn Webb, James Hall Maxymillian, Stephen Allen Warren
  • Patent number: 5669894
    Abstract: Absorbent members useful in the containment of body fluids such as urine, that have at least one region containing hydrogel-forming absorbent polymer in a concentration of from about 60 to 100% by weight and providing a gel-continuous fluid transportation zone when in a swollen state. This hydrogel-forming absorbent polymer has: (a) a Saline Flow Conductivity (SFC) value of at least about 30.times.10.sup.-7 cm.sup.3 sec/g; (b) a Performance under Pressure (PUP) capacity value of at least about 23 g/g under a confining pressure of 0.7 psi (5 kPa); and (c) a basis weight of at least about 10 gsm. In addition, the region where this hydrogel-forming absorbent polymer is present has, even when subjected to normal use conditions, sufficient wet integrity such that the gel-continuous zone substantially maintains its ability to acquire and transport body fluids through the gel-continuous zone.
    Type: Grant
    Filed: October 1, 1996
    Date of Patent: September 23, 1997
    Assignee: The Procter & Gamble Company
    Inventors: Stephen Allen Goldman, Nancy Ann Haynes, Todd Leon Mansfield, Manfred Plischke, Herbert Louis Retzsch, Trevor Walker, Gerald Alfred Young
  • Patent number: 5652194
    Abstract: Relatively thin, collapsed, i.e. unexpanded, polymeric foam materials that, upon contact with aqueous body fluids, expand and absorb such fluids, are disclosed. A process for consistently obtaining such relatively thin, collapsed polymeric foam materials by polymerizing a specific type of water-in-oil emulsion, commonly known as High Internal Phase Emulsions or "HIPE", is also disclosed.
    Type: Grant
    Filed: November 18, 1994
    Date of Patent: July 29, 1997
    Assignee: The Procter & Gamble Company
    Inventors: John Collins Dyer, Thomas Allen DesMarais, Keith Joseph Stone, Paul Seiden, Stephen Allen Goldman, Herbert Louis Retzsch
  • Patent number: 5650222
    Abstract: Low density collapsed absorbent foams materials that, upon contact with aqueous fluids, in particular urine, can expand and absorb these fluids. These low density foams typically have an expanded thickness from about 6 to about 10 times the thickness of the foams in their collapsed state. These low density foams are made by polymerizing high internal phase emulsions (HIPEs) where the volume to weight ratio of the water phase to the oil phase is in the range of from about 55:1 to about 100:1.
    Type: Grant
    Filed: November 29, 1995
    Date of Patent: July 22, 1997
    Assignee: The Procter & Gamble Company
    Inventors: Thomas Allen DesMarais, Keith Joseph Stone, John Collins Dyer, Bryn Hird, Stephen Allen Goldman, Paul Seiden
  • Patent number: 5113745
    Abstract: A stabilizing device for a gun comprising a gyroscope and a mounting assembly attached to the gyroscope for resiliently connecting the gyroscope to a gun. The mounting assembly has a gyroscope slide carriage and a first resilient member connected to the gyroscope slide carriage. The first resilient member allows the gyroscope slide carriage to move longitudinally relative to the gun. A second resilient member is interconnected to the first resilient member and to the gyroscope slide carriage. The second resilient member allows the gyroscope slide carriage to move transverse to the longitudinal axis of the gun. The first resilient member includes a pneumatic cylinder, a piston slidably received within the pneumatic cylinder, and a piston rod connected to the piston at one end and to the gyroscope slide carriage at the other end. The mounting assembly further includes a fixed frame member, a pivot frame member, and a slide rod affixed to and extending between the fixed frame member and the pivot frame member.
    Type: Grant
    Filed: August 23, 1990
    Date of Patent: May 19, 1992
    Assignee: David Palmer
    Inventor: Stephen Allen
  • Patent number: 4070277
    Abstract: Apparatus that removes solids from a liquid by flotation and by sedimentation has a uniform surface distribution of small bubbles for making solids float. Large bubbles which would cause turbulence and uneven bubble flow are confined and eliminated.
    Type: Grant
    Filed: February 22, 1977
    Date of Patent: January 24, 1978
    Assignee: Ecodyne Corporation
    Inventors: Stephen Allen Uban, Donald George Mason
  • Patent number: 3935321
    Abstract: Products having at least an outer layer of a hot semi-liquid material which crystallizes and hardens upon cooling are placed on a conveyor and transported through a cooling tunnel. Within the cooling tunnel, the product is initially subjected to a high voltage field producing a corona current to accelerate initial cooling. The product is moved out of the field while the surface is still semi-liquid and subjected only to the cool air environment of the tunnel while the surface crystallizes and hardens. The product is then moved into a second high voltage field producing a corona current to remove heat from the inner regions of the material to inhibit remelting of the surface after the product exits the cooling tunnel.
    Type: Grant
    Filed: January 11, 1974
    Date of Patent: January 27, 1976
    Assignee: Nabisco, Inc.
    Inventors: Stephen Allen Sakler, Samuel Joseph Porcello, Jack L. Rossen
  • Patent number: D429074
    Type: Grant
    Filed: July 13, 1999
    Date of Patent: August 8, 2000
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Stephen Allen Hurst, Mari-Pat Yvonne Von Feldt, Thomas C. Saffel