Patents by Inventor John W. Callahan

John 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: 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
  • Publication number: 20040082535
    Abstract: The invention relates to products and methods for medical treatment of Gaucher disease and, in particular, an improved Gcc DNA for insertion into any applicable expression vector for gene therapy treatment. The invention includes an isolated Gcc DNA molecule, wherein nucleic acid molecules have been modified at cryptic splice sites to prevent or decrease splicing of mRNA produced from the DNA molecule, while preserving the ability of the DNA to express functional Gcc polypeptides.
    Type: Application
    Filed: November 12, 2003
    Publication date: April 29, 2004
    Inventors: Don J. Mahuran, Joe T.R. Clarke, John W. Callahan
  • Publication number: 20040078829
    Abstract: A resident application and a second application are provided in a set-top terminal to receive a TV broadcast service and network personal video recorder (NPVR) service, respectively. The resident application is suspended in favor of the second application when a user changes from a broadcast channel to an NPVR enabled channel, and vice versa. In an embodiment where a digital video recorder (DVR) set-top terminal is used, a DVR server therein provides trick mode functions (pause, rewind and fast-forward) before an NPVR session, e.g., a Look Back session, is established. In another embodiment, during an NPVR session the DVR server plays back recorded programming content downloaded from a communications network, and provides trick mode functions as well.
    Type: Application
    Filed: August 18, 2003
    Publication date: April 22, 2004
    Inventors: Vipul B. Patel, John W. Callahan
  • Patent number: 6696272
    Abstract: The invention relates to products and methods for medical treatment of Gaucher disease and, in particular, an improved Gcc DNA for insertion into any applicable expression vector for gene therapy treatment. The invention includes an isolated Gcc DNA molecule, wherein nucleic acid molecules have been modified at cryptic splice sites to prevent or decrease splicing of mRNA produced from the DNA molecule, while preserving the ability of the DNA to express functional Gcc polypeptides.
    Type: Grant
    Filed: June 2, 2000
    Date of Patent: February 24, 2004
    Assignee: HSC Research & Development Limited Partnership
    Inventors: Don J. Mahuran, Joe T. R. Clarke, John W. Callahan
  • Publication number: 20040015999
    Abstract: Segmentation messages indicative of locations of upcoming events, such as the start and end of programs and program portions, and/or rights related to the programs and program portions, are used by cable systems and the like to store programs and program portions for later retrieval and transmission to customers on request. Storage, retrieval and management of programming is thereby facilitated. Methods and systems are disclosed.
    Type: Application
    Filed: May 1, 2003
    Publication date: January 22, 2004
    Inventors: John B. Carlucci, Louis D. Williamson, John W. Callahan, Erik G. Urdang, David M. Kimble, Thomas L. Gonder, Joseph Buehl
  • Publication number: 20030208763
    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: Application
    Filed: November 22, 2002
    Publication date: November 6, 2003
    Inventors: David McElhatten, Steven Johnson, John W. Callahan, Marc J. Apfelbaum, Robert Benya, Louis D. Williamson, James A. Chiddix
  • Publication number: 20030208767
    Abstract: Live television broadcast and other information and entertainment programs, e.g., videos-on-demand (VOD), are provided to a user through a communications network, e.g., a cable network. A processing unit is employed at an headend of the communications network to respond to user requests for PVR-like functions, e.g., pausing, rewinding and fast-forwarding, to be performed on the program content being viewed. The processing unit in accordance with the invention causes a delivery of an appropriate version of the program content to meet such user requests.
    Type: Application
    Filed: October 2, 2002
    Publication date: November 6, 2003
    Inventors: Louis D. Williamson, Joseph Buehl, John W. Callahan, John B. Carlucci, James A. Chiddix, Michael T. Hayashi, Kevin J. Leddy
  • Patent number: 4472091
    Abstract: Apparatus which controllably meters dry powder from a powder supply chamber falling through a vertically disposed axial passageway interconnecting the supply chamber with a mixing chamber therebelow for forming an air-powder mixture therein for transport to a desired site. A tapered plug member is bonded to a bimorph bender comprising a piezoelectric element bonded to each face of a thin, flat, cantilevered metallic beam which is deflectable by a dc bias or driving voltage applied to the bender to cause the tapered plug to penetrate or move within the passageway, thus varying width of annular gap formed between the plug and passageway, and hence, amount of powder capable of falling therethrough. An oscillating voltage may be impressed upon the piezoelectric elements to cause the deflected beam to additionally be vibratorily displaced in accordance with the frequency of vibrations of the impressed oscillating source.
    Type: Grant
    Filed: April 25, 1983
    Date of Patent: September 18, 1984
    Assignee: Pennwalt Corporation
    Inventor: John W. Callahan
  • Patent number: 4395924
    Abstract: A flexible shaft has its outermost layer of windings provided with a helical gap along length of the shaft. The helical gap is formed by a flexible shaft winding machine which is programmed to uniformly intermittently discontinue coiling the windings very closely in the outermost layer to thereby uniformly leave a continuous helical space along the shaft length which forms the helical gap. A smooth-bore nut has a pair of transversely disposed pins or screws extending partially thereinto for engaging the helical gap to cause the nut to travel along an unlimited length of a rotating flexible shaft which may be curved. The pins or screws are spaced to ride in the helical gap a pitch distance apart.
    Type: Grant
    Filed: November 13, 1981
    Date of Patent: August 2, 1983
    Assignee: Pennwalt Corporation
    Inventor: John W. Callahan
  • Patent number: 4207666
    Abstract: A sleeve member interconnects an upper and lower length of replacement casing, which lengths are associated with the vehicle speedometer and transmission respectively. The upper length is crimped into one end of the sleeve member while the lower length is slidably adjustable with the remaining portion thereof. By a series of process steps, the interconnected lengths of replacement casing will contain a replacement rotatable flexible shaft cable therein, which cable is provided with a square tipped cable fitting at each end thereof, one of which operatively engages the vehicle speedometer while the other engages the transmission. By virtue of the slidably adjustable lower casing length within the sleeve member, proper protrusion of the cable fitting square tips is insured. The adjustable length of casing may then be rigidly crimped into the sleeve member.
    Type: Grant
    Filed: May 25, 1978
    Date of Patent: June 17, 1980
    Assignee: Pennwalt Corporation
    Inventor: John W. Callahan