Patents by Inventor W. Callahan

W. Callahan 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).

  • Publication number: 20100038934
    Abstract: An apparatus and method for supporting a person in a bathtub or shower. The apparatus comprising: an elongated base, comprising a tapered yoke operably coupled to a first end of the elongated base and a stabilizer operably coupled to a second end of the elongated base. The apparatus comprising a rotatable and/or slidable chair, wherein the rotatable and/or slidable chair is operably coupled to the same end of the elongated base as the tapered yolk. The method comprising: providing an apparatus having a rotatable and/or slidable chair, wherein some of the components may be foldable, such as a foldable seat, a foldable back, foldable legs, and a plurality of arms. Folding the foldable components of the slidable and/or rotatable chair make transporting easier and safer because the apparatus is more compact when the foldable components are in the folded position.
    Type: Application
    Filed: August 12, 2008
    Publication date: February 18, 2010
    Inventors: Roderick Bennett, Christopher W. Callahan
  • Publication number: 20090254943
    Abstract: A favorites list of program channels which a cable TV user likely prefers is generated automatically from which the user may select a program channel to watch. Each program channel in the favorites list is identified based on a measure of the duration in which the program channel is continuously tuned to. In an embodiment, this measure varies nonlinearly with such a duration. The favorites list may further comprise sublists of program channels which may correspond to different periods of a day, week, etc. The favorites list may be generated from programs watched on multiple viewing devices.
    Type: Application
    Filed: February 20, 2009
    Publication date: October 8, 2009
    Inventors: Stephen L. Maynard, Joseph M. Hassell, John W. Callahan, Tho T. Autruong, Vitaly Shoykhet, Karla J. Towne
  • Publication number: 20090214844
    Abstract: A hydrogen transport membrane in which a porous ceramic support supports a dense layer of palladium or an alloy of palladium serving as a hydrogen transport material. The ceramic support has a first porous layer and a second porous layer. The first porous layer has a first thickness of about 1 mm, a first set of pores have a first average pore size of between about 10 microns and about 50 microns and a first porosity of about 40 percent by volume. The second porous layer has a second thickness of about 3 microns, a second set of pores having a second average pore size of between about 10 nanometers and about 100 nanometers and a second porosity of about 50 percent by volume. The dense layer has a thickness of about 3 microns.
    Type: Application
    Filed: March 26, 2009
    Publication date: August 27, 2009
    Inventors: Prasad S. Apte, Joseph Michael Schwartz, Shawn W. Callahan
  • Publication number: 20090183219
    Abstract: Methods and apparatus related to updating a resident application (RA) and replacing an updated resident application with a previous version of a resident application are described. The methods and apparatus may be used for updating and replacing resident applications in set-top terminals (STTs) of a cable system including a cable network headend.
    Type: Application
    Filed: March 2, 2009
    Publication date: July 16, 2009
    Inventors: Stephen L Maynard, Jed A. Reed, John W. Callahan, Benjamin L. Payne
  • Patent number: 7531215
    Abstract: A method of forming a hydrogen transport membrane to separate hydrogen from a hydrogen containing feed in which a porous ceramic support is formed to support a dense layer of palladium or an alloy of palladium serving as a hydrogen transport material. Isolated deposits of palladium, a palladium alloy or a component of such alloy are produced on a surface of the porous ceramic support that bridge pores within the porous ceramic support without penetrating the pores and without bridging regions of the surface defined between the pores. The isolated deposits of the metal are produced by an electroless plating process.
    Type: Grant
    Filed: November 15, 2005
    Date of Patent: May 12, 2009
    Assignee: Praxair Technology, Inc.
    Inventors: Prasad S. Apte, Joseph Michael Schwartz, Shawn W. Callahan
  • Patent number: 7509663
    Abstract: A favorites list of program channels which a cable TV user likely prefers is generated automatically, from which the user may select a program channel to watch. Each program channel in the favorites list is identified based on a measure of the duration in which the program channel is continuously tuned to. In an embodiment, this measure varies nonlinearly with such a duration. The favorites list may further comprise sublists of program channels which may correspond to different periods of a day, week, etc.
    Type: Grant
    Filed: February 14, 2005
    Date of Patent: March 24, 2009
    Assignee: Time Warner Cable, Inc.
    Inventors: Stephen L. Maynard, Joseph M. Hassell, John W. Callahan, Tho T. Autruong, Vitaly Shoykhet, Karla J. Towne
  • Patent number: 7500235
    Abstract: A resident application (RA) in set-top terminals (STTs) is updated by providing an upgrade channel application (UCA) over a network. Those STTs that are selected to receive the UCA are identified. The selected STTs download the UCA from the network. Once the UCA begins to execute on an STT, it retrieves the user parameters stored in the STT, and transmits them to a remote location for storage. A new RA is then installed in the STT. The original user parameters are converted at the remote location to become compatible with the new RA. The converted user parameters are transferred to the STT for use by the new RA.
    Type: Grant
    Filed: September 5, 2003
    Date of Patent: March 3, 2009
    Assignee: AOL Time Warner Interactive Video Group, Inc.
    Inventors: Stephen L. Maynard, Jed A. Reed, John W. Callahan, Benjamin L. Payne
  • Publication number: 20080199722
    Abstract: This invention relates to coatings for a metal or non-metal substrate comprising (i) a thermal sprayed bondcoat layer applied to said substrate comprising an alloy of MCrAlM? wherein M is an element selected from nickel, cobalt, iron and mixtures thereof, and M? is an element selected from yttrium, zirconium, hafnium, ytterbium and mixtures thereof, and wherein M comprises from about 35 to about 80 weight percent of said alloy, Cr comprises from about 15 to about 45 weight percent of said alloy, Al comprises from about 5 to about 30 weight percent of said alloy, and M? comprises from about 0.01 to about 1.0 weight percent of said alloy, said alloy thermally sprayed from a powder having a mean particle size of 50 percentile point in distribution of from about 5 microns to about 100 microns, said bondcoat having a surface roughness of at least 200 micro-inches, and said bondcoat having a thermal expansion of about 6.5 millimeters per meter or less between a temperature of from about 25° C. to about 525° C.
    Type: Application
    Filed: February 7, 2008
    Publication date: August 21, 2008
    Inventors: Prasad Shrikrishna Apte, James Patrick Meagher, Shawn W. Callahan
  • Publication number: 20080199684
    Abstract: This invention relates to coatings for a metal or non-metal substrate comprising (a) a thermal sprayed bondcoat layer applied to said substrate, said bondcoat layer comprising: (i) a thermal sprayed inner layer comprising an inner layer alloy of MCrAlM? wherein M is an element selected from nickel, cobalt, iron and mixtures thereof, and M? is an element selected from yttrium, zirconium, hafnium, ytterbium and mixtures thereof; and (ii) a thermal sprayed outer layer comprising an outer layer alloy of MCrAlM? wherein M is an element selected from nickel, cobalt, iron and mixtures thereof, and M? is an element selected from yttrium, zirconium, hafnium, ytterbium and mixtures thereof, and (b) a thermal sprayed ceramic layer applied to said bondcoat layer. The coatings are useful for extending the service life under severe conditions, such as those associated with metallurgical vessels' lances, nozzles and tuyeres.
    Type: Application
    Filed: February 7, 2008
    Publication date: August 21, 2008
    Inventors: Prasad Shrikrisnna Apte, James Patrick Meagher, Shawn W. Callahan
  • Publication number: 20070207533
    Abstract: A portable, disposable device for the collection and bacteriological decomposition of liquid hydrocarbons including a pillow containing at least one member of the group consisting of (i) kenaf fibers/particles and (ii) a mixture of (a) natural, synthetic and/or oleophilic fibers/particles and (b)(i) one or more species of fungi selected from the group consisting of chaetonium indicum, chaetonium funicola, geotrichum candidum, macrophomina phaseolina, and trichoderma harziamum, and/or (b)(ii) one or more species of bacteria selected from the group consisting of bacillus subtillis, bacillus cereus sub group A and paenibacillus validus. The pillow may be quilted or otherwise constructed to define a plurality of chambers each containing the kenaf fibers/particles and/or the mixture of fibers/particles, fungi and/or bacteria. The device may further include a liquid impermeable pillow housing defining an opening to allow the liquid hydrocarbon to come into contact with the pillow.
    Type: Application
    Filed: March 3, 2006
    Publication date: September 6, 2007
    Inventor: W. Callahan
  • Patent number: 7119126
    Abstract: The polymer matrix material includes a polymerization product of one or more monomers selected from the group of water-soluble, ethylenically-unsaturated acids and acid derivatives, and a crosslinking agent. A quantity of water is used for polymerization, such that the polymer material is swelled to a defined volume upon curing. Optionally, a water-soluble or water-swellable polymer and/or a chemical polymerization initiator.
    Type: Grant
    Filed: April 5, 2004
    Date of Patent: October 10, 2006
    Assignee: eVionyx, Inc.
    Inventors: Robert W. Callahan, Mark G. Stevens, Muguo Chen
  • Patent number: 7073189
    Abstract: In a broadband communications system, e.g., a cable system, programming content can be readily reserved and accessed for viewing using interactive program guides in accordance with the invention. Such programming content may include in-progress programs, future programs and previously broadcast programs which are recorded at a headend in the cable system, and which may or may not have overlapping broadcast times. In addition, the user may reserve programs at a set-top terminal, and may also do so remotely from the terminal through a communications network such as, the Internet, a public switched telephone network (PSTN), a wireless telephone network, etc.
    Type: Grant
    Filed: November 22, 2002
    Date of Patent: July 4, 2006
    Assignee: Time Warner Interactive Video Group, Inc.
    Inventors: David McElhatten, Steven Johnson, John W. Callahan, Marc J. Apfelbaum, Robert Benya, Louis D. Williamson, James A. Chiddix
  • Patent number: 7000616
    Abstract: A suspension system for the care and prevention of wounds on the body of a user includes an array of removable suspension devices forming a flexible sheet. Each suspension device is removably coupled to at least on other suspension device. The suspension devices are selectably removable from the array in order to define a space within the sheet which approximates the size of a target area on the body of the user. A disposable garment for the body of a user includes an absorbent portion and a wound are and prevention suspension portion. The absorbent portion has fluid pervious inner sheet, a fluid impervious outer sheet and at least one layer of absorbent material disposed between the inner and outer sheets. The wound are and prevention suspension portion is coupled to the absorbent portion.
    Type: Grant
    Filed: December 1, 2003
    Date of Patent: February 21, 2006
    Inventors: R. Gary Diaz, John W. Callahan, Thomas R. Schleicher
  • Patent number: 6892734
    Abstract: A suspension system for the care and prevention of wounds on the body of a user includes an array of removable suspension devices forming a flexible sheet. Each suspension device is removably coupled to at least one other suspension device. The suspension devices are selectably removable from the array in order to define a space within the sheet which approximates the size of a target area on the body of the user. A disposable garment for the body of a user includes an absorbent portion and a wound care and prevention suspension portion. The absorbent portion has a fluid pervious inner sheet, a fluid impervious outer sheet and at least one layer of absorbent material disposed between the inner and outer sheets. The wound care and prevention suspension portion is coupled to the absorbent portion.
    Type: Grant
    Filed: October 19, 2000
    Date of Patent: May 17, 2005
    Inventors: Thomas R. Schleicher, R. Gary Diaz, John W. Callahan
  • Patent number: 6849702
    Abstract: The polymer matrix material includes a polymerization product of one or more monomers selected from the group of water-soluble, ethylenically-unsaturated acids and acid derivatives, and a crosslinking agent. A quantity of water is used for polymerization, such that the polymer material is swelled to a defined volume upon curing. Optionally, a water-soluble or water-swellable polymer and/or a chemical polymerization initiator.
    Type: Grant
    Filed: August 30, 2001
    Date of Patent: February 1, 2005
    Inventors: Robert W. Callahan, Mark G. Stevens, Muguo Chen
  • Publication number: 20040266895
    Abstract: The polymer matrix material includes a polymerization product of one or more monomers selected from the group of water-soluble, ethylenically-unsaturated acids and acid derivatives, and a crosslinking agent. A quantity of water is used for polymerization, such that the polymer material is swelled to a defined volume upon curing. Optionally, a water-soluble or water-swellable polymer and/or a chemical polymerization initiator.
    Type: Application
    Filed: April 5, 2004
    Publication date: December 30, 2004
    Inventors: Robert W. Callahan, Mark G. Stevens, Muguo Chen
  • Patent number: 6828048
    Abstract: A fuel cell system that includes fuel processing components, such as a reformer and shift converter, for converting an organic fuel to hydrogen, is shut-down by disconnecting the fuel cell from its load and purging the fuel processing components of residual hydrogen with a flow of air. The purge air may be forced through the components in series or in parallel, using a blower; or, the purge air may be allowed to enter the components through a low inlet, whereupon the air rises through the components by natural circulation and exits through a high outlet, along with the residual hydrogen.
    Type: Grant
    Filed: November 6, 2001
    Date of Patent: December 7, 2004
    Assignee: UTC Fuel Cells, LLC
    Inventors: Paul R. Margiott, Christopher W. Callahan, Michael L. Perry, Glenn W. Scheffler
  • Patent number: 6776941
    Abstract: A cold isopressing method and mold for compacting a granular ceramic material in which the granular ceramic material is introduced into a cylindrical pressure bearing element of an isopressing mold. The cylindrical pressure bearing element is sufficiently rigid so as to maintain its shape during the introducing of the granular ceramic material. Such element is also sufficiently resilient in a radial direction thereof to deform and bear against the granular ceramic material upon the application of the hydrostatic pressure and to substantially return to its original shape upon the relaxation of the hydrostatic pressure, thereby to allow retraction of the cylindrical pressure bearing element from the granular ceramic material after compaction. In a further aspect, an isopressing method and mold is provided in which the cylindrical pressure bearing element thereof is provided with an enlarged end bore to form an enlarged end section in the finished ceramic tube for sealing purposes.
    Type: Grant
    Filed: June 6, 2002
    Date of Patent: August 17, 2004
    Assignee: Praxair Technology, Inc.
    Inventors: Prasad S. Apte, Shawn W. Callahan, James S. Schneider, Jack C. Chen
  • Publication number: 20040147863
    Abstract: A suspension system for the care and prevention of wounds on the body of a user includes an array of removable suspension devices forming a flexible sheet. Each suspension device is removably coupled to at least on other suspension device. The suspension devices are selectably removable from the array in order to define a space within the sheet which approximates the size of a target area on the body of the user. A disposable garment for the body of a user includes an absorbent portion and a wound are and prevention suspension portion. The absorbent portion has fluid pervious inner sheet, a fluid impervious outer sheet and at least one layer of absorbent material disposed between the inner and outer sheets. The wound are and prevention suspension portion is coupled to the absorbent portion.
    Type: Application
    Filed: December 1, 2003
    Publication date: July 29, 2004
    Inventors: R. Gary Diaz, Thomas R. Schleicher, John W. Callahan
  • Patent number: D541195
    Type: Grant
    Filed: December 8, 2005
    Date of Patent: April 24, 2007
    Assignee: Polaris Industries Inc.
    Inventors: Garth Bracy, Gregory Brew, John W Callahan, Michael Song