Patents by Inventor David R. Wagner

David R. Wagner 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: 10076239
    Abstract: A medical system generally comprises a camera head, a beam, and a guide sheath. The camera head is connected to the beam which is bendable in a first direction and resists bending in a second direction opposite the first direction. The guide sheath slidably receives the beam, the beam extending through a distal end of the guide sheath such that the camera head projects from the distal end of the guide sheath. The guide sheath includes first and second sheath portions, and in an operative configuration the first sheath portion is angled relative to the second sheath portion to define a first bend. The beam is oriented relative to the guide sheath such that, as the beam is slid relative to guide sheath, the beam bends in the first direction through the first bend, and a projecting portion of the beam resists bending in the second direction.
    Type: Grant
    Filed: April 15, 2016
    Date of Patent: September 18, 2018
    Assignee: COOK MEDICAL TECHNOLOGIES LLC
    Inventors: David Keith Piech, Deepthi Jampala, Vihar C. Surti, Michelle D. Martinez, John Crowder Sigmon, Jr., David R. Wagner
  • Patent number: 9790868
    Abstract: An apparatus and method for igniting a gaseous fuel directly introduced into a combustion chamber of an internal combustion engine comprises steps of heating a space near a fuel injector nozzle; introducing a pilot amount of the gaseous fuel in the combustion chamber during a first stage injection event; controlling residency of the pilot amount in the space such that a temperature of the pilot amount increases to an auto-ignition temperature of the gaseous fuel whereby ignition occurs; introducing a main amount of the gaseous fuel during a second stage injection event after the first stage injection event; and using heat from combustion of the pilot amount to ignite the main amount.
    Type: Grant
    Filed: August 6, 2014
    Date of Patent: October 17, 2017
    Assignee: Westport Power Inc.
    Inventors: Jian Huang, Sandeep Munshi, Gordon P. McTaggart-Cowan, David R. Wagner
  • Publication number: 20160227995
    Abstract: A medical system generally comprises a camera head, a beam, and a guide sheath. The camera head is connected to the beam which is bendable in a first direction and resists bending in a second direction opposite the first direction. The guide sheath slidably receives the beam, the beam extending through a distal end of the guide sheath such that the camera head projects from the distal end of the guide sheath. The guide sheath includes first and second sheath portions, and in an operative configuration the first sheath portion is angled relative to the second sheath portion to define a first bend. The beam is oriented relative to the guide sheath such that, as the beam is slid relative to guide sheath, the beam bends in the first direction through the first bend, and a projecting portion of the beam resists bending in the second direction.
    Type: Application
    Filed: April 15, 2016
    Publication date: August 11, 2016
    Inventors: David Keith Piech, Deepthi Jampala, Vihar C. Surti, Michelle D. Martinez, John Crowder Sigmon, JR., David R. Wagner
  • Patent number: 9339264
    Abstract: A medical system generally comprises a camera head, a beam, and a guide sheath. The camera head is connected to the beam which is bendable in a first direction and resists bending in a second direction opposite the first direction. The guide sheath slidably receives the beam, the beam extending through a distal end of the guide sheath such that the camera head projects from the distal end of the guide sheath. The guide sheath includes first and second sheath portions, and in an operative configuration the first sheath portion is angled relative to the second sheath portion to define a first bend. The beam is oriented relative to the guide sheath such that, as the beam is slid relative to guide sheath, the beam bends in the first direction through the first bend, and a projecting portion of the beam resists bending in the second direction.
    Type: Grant
    Filed: February 29, 2012
    Date of Patent: May 17, 2016
    Assignee: Cook Medical Technologies LLC
    Inventors: David Keith Piech, Deepthi Jampala, Vihar C. Surti, Michelle D. Martinez, John Crowder Sigmon, Jr., David R. Wagner
  • Patent number: 8298187
    Abstract: A medical device is provided. The device includes a cannula with a lumen and a plurality of apertures and a visually perceptible indicator that is configured to allow the cannula to be positioned at an appropriate rotational position within the patient. A plurality of injection needles are disposed within the lumen and a first handle is fixed with respect to the cannula and a second handle is disposed in conjunction with the first handle and fixed to the proximal portion of each of the plurality of needles, the first handle is translatable with respect to the second handle to translate the plurality of needles from a first position where the distal portions of each of the plurality of needles are disposed within the lumen of the cannula, and a second position where the distal portion of each of the plurality of needles extends out of the lumen through their respective aperture.
    Type: Grant
    Filed: July 7, 2009
    Date of Patent: October 30, 2012
    Assignee: Cook Medical Technologies LLC
    Inventors: Bryan Woodard, James D. Purdy, David R. Wagner, Richard B. Sisken, Steven J. Charlebois, Gregory A. Frankland, Scott K. Philhower
  • Publication number: 20110009848
    Abstract: A medical device is provided. The device includes a cannula with a lumen defined therethrough and an upper portion, a right side portion, a bottom portion, and a left side portion each substantially equally spaced from their respective neighboring portion around the circumferential surface of the cannula. The cannula additionally includes a plurality of apertures disposed through the distal end portion to provide communication from the lumen and a visually perceptible indicator that is configured to allow the cannula to be positioned at an appropriate rotational position within the patient.
    Type: Application
    Filed: July 7, 2009
    Publication date: January 13, 2011
    Applicants: Vance Products Inc. d/b/a Cook Urological Inc., Med Institute, Inc, Sabin Corporation
    Inventors: Bryan Woodard, James D. Purdy, David R. Wagner, Richard B. Sisken, Steven J. Charlebois, Gregory A. Frankland, Scott K. Philhower
  • Patent number: 7442345
    Abstract: A new reactor apparatus that can be used to carry out chemical reactions in a fluidized catalyst bed at high temperatures with reduced afterburning or other undesirable downstream side reactions.
    Type: Grant
    Filed: May 7, 2004
    Date of Patent: October 28, 2008
    Assignee: Ineos USA LLC
    Inventors: Louis R. Trott, David R. Wagner, Steven J. Rowe, Robert A. Gustaferro, Gregory A. Norenberg, Kenneth P. Keckler, Robert P. Hepfer
  • Patent number: 7166742
    Abstract: A fluid bed process for the manufacture of vinyl acetate from ethylene, acetic acid and oxygen comprising feeding ethylene and acetic acid into a fluid bed reactor through a first inlet, introducing the oxygen into the reactor through a second inlet, co-joining the oxygen, ethylene and acetic acid in the reactor in contact with a fluid bed catalyst to produce vinyl acetate. The particle size diameter of the particulate catalyst material has a range of 60% of the particles being below 200 microns (0.1 mm) with no more than 40% of the particles being below 40 microns (0.04 mm).
    Type: Grant
    Filed: November 25, 2003
    Date of Patent: January 23, 2007
    Assignee: The Standard Oil Company
    Inventors: Larry M. Cirjak, Michael F. Lemanski, David R. Wagner, Nancy C. Benkalowycz, Patricia R. Blum, Marc A. Pepera, Christos Paparizos
  • Publication number: 20040106822
    Abstract: A fluid bed process for the manufacture of vinyl acetate from ethylene, acetic acid and oxygen comprising feeding ethylene and acetic acid into a fluid bed reactor through a first inlet, introducing the oxygen into the reactor through a second inlet, co-joining the oxygen, ethylene and acetic acid in the reactor in contact with a fluid bed catalyst to produce vinyl acetate. The particle size diameter of the particulate catalyst material has a range of 60% of the particles being below 200 microns (0.1 mm) with no more than 40% of the particles being below 40 microns (0.04 mm).
    Type: Application
    Filed: November 25, 2003
    Publication date: June 3, 2004
    Inventors: Larry M. Cirjak, Michael F. Lemanski, David R. Wagner, Nancy C. Benkalowycz, Patricia R. Blum, Marc A. Pepera, Christos Paparizos
  • Patent number: 6737546
    Abstract: Economical processes are disclosed for recovery and refining of at least acrylic acid from a gaseous mixture such as is obtainable by gas-phase catalytic oxidation of propylene. Processes of the invention include quenching the gaseous mixture with an aqueous quench liquid to obtain an aqueous solution comprising the acid values; contacting the aqueous solution with an immiscible extraction solvent; and an integrated sequence of distillations and phase separations to recover for recycle organic components of the extraction solvent, and obtain valuable acrylic acid and acetic acid products. Advantageously, the immiscible extraction solvent is substantially free of aromatic compounds such as benzene and toluene.
    Type: Grant
    Filed: November 13, 2001
    Date of Patent: May 18, 2004
    Assignee: Lurgi AG
    Inventors: David R. Wagner, Steve J. Miko
  • Patent number: 6716203
    Abstract: An individually wrapped feminine care absorbent article package includes an absorbent article contained within a pouch having an openable flap. The pouch is made from a wrapper material having an inner film layer and at least one fibrous material outer layer having a tactile cloth-like softness as compared to the film layer.
    Type: Grant
    Filed: December 18, 2001
    Date of Patent: April 6, 2004
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Heather A. Sorebo, Wendy Benhke, Julie Bednarz, David R. Wagner, Robert J. Koenig, Kimberly A. Stanford
  • Publication number: 20030116462
    Abstract: A feminine care absorbent article package includes an absorbent article contained within a pouch having a panel member extending across the back of the pouch. The panel member is alternately pulled over the open top of the pouch to open and re-seal the pouch.
    Type: Application
    Filed: December 20, 2001
    Publication date: June 26, 2003
    Applicant: KIMBERLY-CLARK WORLDWIDE, INC.
    Inventors: Heather A. Sorebo, Wendy Benhke, Julie Bednarz, David R. Wagner, Robert J. Koenig
  • Publication number: 20030120241
    Abstract: An individually wrapped feminine care absorbent article package includes an absorbent article contained within a pouch having an openable flap. The pouch is made from a wrapper material having an inner film layer and at least one fibrous material outer layer having a tactile cloth-like softness as compared to the film layer.
    Type: Application
    Filed: December 18, 2001
    Publication date: June 26, 2003
    Applicant: KIMBERLY-CLARK WORLDWIDE, INC.
    Inventors: Heather A. Sorebo, Wendy Benhke, Julie Bednarz, David R. Wagner, Robert J. Koenig, Kimberly A. Stanford
  • Publication number: 20030092937
    Abstract: Economical processes are disclosed for recovery and refining of at least acrylic acid from a gaseous mixture such as is obtainable by gas-phase catalytic oxidation of propylene. Processes of the invention include quenching the gaseous mixture with an aqueous quench liquid to obtain an aqueous solution comprising the acid values; contacting the aqueous solution with an immiscible extraction solvent; and an integrated sequence of distillations and phase separations to recover for recycle organic components of the extraction solvent, and obtain valuable acrylic acid and acetic acid products. Advantageously, the immiscible extraction solvent is substantially free of aromatic compounds such as benzene and toluene.
    Type: Application
    Filed: November 13, 2001
    Publication date: May 15, 2003
    Inventors: David R. Wagner, Steve J. Miko
  • Publication number: 20020058833
    Abstract: A fluid bed process for the manufacture of vinyl acetate from ethylene, acetic acid and oxygen comprising feeding ethylene and acetic acid into a fluid bed reactor through a first inlet, introducing the oxygen into the reactor through a second inlet, co-joining the oxygen, ethylene and acetic acid in the reactor in contact with a fluid bed catalyst to produce vinyl acetate. The particle size diameter of the particulate catalyst material has a range of 60% of the particles being below 200 microns (0.1 mm) with no more than 40% of the particles being below 40 microns (0.04 mm).
    Type: Application
    Filed: October 17, 2001
    Publication date: May 16, 2002
    Inventors: Larry M. Cirjak, Michael F. Lemanski, David R. Wagner, Nancy C. Benkalowycz, Patricia R. Blum, Marc A. Pepera, Christos Paparizos
  • Patent number: 5710318
    Abstract: A fluid bed process for the manufacture of vinyl acetate from ethylene, acetic acid and oxygen comprising feeding a gaseous mixture comprising ethylene and acetic acid into a fluid bed reactor through a first inlet, introducing the oxygen into the reactor through a second inlet, co-joining the oxygen, ethylene and acetic acid in the reactor in contact with a fluid bed catalyst to produce vinyl acetate. The particle size diameter of the particulate catalyst material has a range of 60% of the particles being below 200 microns (0.1 mm) with no more than 40% of the particles being below 40 microns (0.04 mm).
    Type: Grant
    Filed: August 27, 1996
    Date of Patent: January 20, 1998
    Assignee: The Standard Oil Company
    Inventors: Larry M. Cirjak, Michael F. Lemanski, David R. Wagner, Nancy C. Benkalowycz, Patricia R. Blum, Marc A. Pepera, Christos Paparizos
  • Patent number: 5550281
    Abstract: A fluid bed process for the manufacture of vinyl acetate from ethylene, acetic acid and oxygen comprising feeding a gaseous mixture comprising ethylene and acetic acid into a fluid bed reactor through a first inlet, introducing the oxygen into the reactor through a second inlet, co-joining the oxygen, ethylene and acetic acid in the reactor in contact with a fluid bed catalyst to produce vinyl acetate. The particle size diameter of the particulate catalyst material has a range of 60% of the particles being below 200 microns (0.1 mm) with no more than 40% of the particles being below 40 microns (0.04 mm).
    Type: Grant
    Filed: June 2, 1994
    Date of Patent: August 27, 1996
    Inventors: Larry M. Cirjak, Michael F. Lemanski, David R. Wagner, Nancy C. Benkalowycz, Patricia R. Blum, Marc A. Pepera, Christos Paparizos
  • Patent number: 5300684
    Abstract: Disclosed is a process for oxidizing ethane to acetic acid which comprises feeding ethane and a recycle gas to a fluidized bed reaction zone containing fluidized particulate solid oxidation catalyst, feeding a molecular oxygen-containing gas separately from said ethane to said reaction zone so that said molecular oxygen-containing gas first mixes with the major portion of the combustible hydrocarbon feed gases within the fluidized bed, said process including the steps of (1) cooling the gaseous effluent from the reaction zone, (2) separating most of the acetic acid in liquid form from the effluent gases, leaving a gaseous stream containing nearly all of the carbon oxides contained in said effluent, (3) purging a small portion of said gaseous stream and recycling most of said gaseous stream as part of the feed to said reaction zone,wherein said purging serves to prevent build-up of carbon oxides in the reaction zone, and said recycling serves to maintain a high proportion of carbon oxides in said reaction zone
    Type: Grant
    Filed: December 9, 1991
    Date of Patent: April 5, 1994
    Assignee: The Standard Oil Company
    Inventors: Nancy C. Benkalowycz, Patricia R. Blum, David R. Wagner
  • Patent number: 4362433
    Abstract: A weighted water bag for forming levees or dikes, in order to hold back rising flood water, the bag being woven of fiber and including a waterproof or sand inner liner; rings and clips at corners allowing bags to be locked together, a water filler opening at one end, and fiber handles for each side of the opening for easy handling, including forms having portions of the bag filled with sand.
    Type: Grant
    Filed: October 30, 1980
    Date of Patent: December 7, 1982
    Inventors: David R. Wagner, George Spector
  • Patent number: 4166774
    Abstract: The separation of acrylic acid from a mixture of acrylic acid and acetic acid found in the reaction product stream obtained in the process of producing acrylic acid by the oxidation of propylene or acrolein is improved by removing a vapor sidestream from the solvent recovery column found in the process. Acetic acid is then separated from this stream without the addition of external heat.
    Type: Grant
    Filed: December 5, 1977
    Date of Patent: September 4, 1979
    Assignee: The Standard Oil Company
    Inventor: David R. Wagner