Patents by Inventor John J. Wozniak

John J. Wozniak 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: 7198301
    Abstract: A suspension system for carrying a compressed gas fuels in vehicle. The suspensions arms and springs are configured to maximize the space between the wheels while providing a high degree of suspension stiffness to maintain proper wheel alignment during cornering, braking and in rough terrain. The suspension arms have two broadly-spaced attachment points to the chassis that provides structural rigidity to the rear suspension subassembly.
    Type: Grant
    Filed: November 1, 2002
    Date of Patent: April 3, 2007
    Assignee: The Johns Hopkins University
    Inventors: John J. Wozniak, Richard J. Hildebrand
  • Publication number: 20040239095
    Abstract: A suspension system for carrying a compressed gas fuels in vehicle. The suspensions arms and springs are configured to maximize the space between the wheels while providing a high degree of suspension stiffness to maintain proper wheel alignment during cornering, braking and in rough terrain. The suspension arms have two broadly-spaced attachment points to the chassis that provides structural rigidity to the rear suspension subassembly.
    Type: Application
    Filed: May 5, 2004
    Publication date: December 2, 2004
    Inventors: John J. Wozniak, Richard J Hildebrand
  • Patent number: 6418962
    Abstract: A compressed gas vehicle fuel storage system comprised of a plurality of compressed gas pressure cells supported by shock-absorbing bumpers positioned within a low cost, shape-conforming container. The container is dimensioned relative to the compressed gas pressure cells whereby a radial air gap surrounds each compressed gas pressure cell. The radial air gap allows pressure-induced expansion of the pressure cells without resulting in the application of pressure to adjacent pressure cells or physical pressure to the container. The pressure cells are interconnected by a gas control assembly including a thermally activated pressure relief device, a manual safety shut-off valve, and means for connecting the fuel storage system to a vehicle power source and a refueling adapter. The gas control assembly is enclosed by a protective cover attached to the container. The system is attached to the vehicle with straps to enable the chassis to deform as intended in a high-speed collision.
    Type: Grant
    Filed: October 27, 1999
    Date of Patent: July 16, 2002
    Assignee: The Johns Hopkins University
    Inventors: John J. Wozniak, Paul D. Wienhold, Dale B. Tiller
  • Patent number: 6321775
    Abstract: A compressed gas storage cell interconnecting manifold including a thermally activated pressure relief device, a manual safety shut-off valve, and a port for connecting the compressed gas storage cells to a motor vehicle power source and to a refueling adapter. The manifold is mechanically and pneumatically connected to a compressed gas storage cell by a bolt including a gas passage therein.
    Type: Grant
    Filed: October 27, 1999
    Date of Patent: November 27, 2001
    Assignee: The Johns Hopkins University
    Inventors: Richard J. Hildebrand, John J. Wozniak
  • Patent number: 6257360
    Abstract: A compressed gas vehicle fuel storage system comprised of a plurality of compressed gas pressure cells supported by shock-absorbing foam positioned within a shape-conforming container. The container is dimensioned relative to the compressed gas pressure cells whereby a radial air gap surrounds each compressed gas pressure cell. The radial air gap allows pressure-induced expansion of the pressure cells without resulting in the application of pressure to adjacent pressure cells or physical pressure to the container. The pressure cells are interconnected by a gas control assembly including a thermally activated pressure relief device, a manual safety shut-off valve, and means for connecting the fuel storage system to a vehicle power source and a refueling adapter. The gas control assembly is enclosed by a protective cover attached to the container. The system is attached to the vehicle with straps to enable the chassis to deform as intended in a high-speed collision.
    Type: Grant
    Filed: October 27, 1999
    Date of Patent: July 10, 2001
    Assignee: The Johns Hopkins University
    Inventors: John J. Wozniak, Dale B. Tiller, Paul D. Wienhold, Richard J. Hildebrand
  • Patent number: 6080461
    Abstract: Solid disks of polyethylene oxide are radiation crosslinked to instill viscoelastic memory. The disks are then pierced with a needle, heated, cooled and the needle removed to form disks containing a flow orifice in each which upon contact with water will revert to solid disks. A disk with a flow orifice made as just described when used as a memory flow control valve in a conventional injection device will produce a syringe with a single-use, auto-destruct capability. When the disk is inserted in a retainer in the flow channel of the injection device, a drug/vaccine can be drawn into the syringe and then expelled for a preselected time less than six minutes before the water in the drug/vaccine causes the flow orifice in the disk to close, the disk then reverting to its solid shape due to its viscoelastic memory.
    Type: Grant
    Filed: March 10, 1994
    Date of Patent: June 27, 2000
    Assignee: The Johns Hopkins University
    Inventors: John J. Wozniak, Michael C. Robertson
  • Patent number: 5264256
    Abstract: Disclosed is a method and apparatus for effecting glow discharge comprising an elongated electrically conductive glow bar electrode, means for applying a potential to the glow bar electrode, thereby generating ions, means for creating a flow of ions from the glow bar electrode to a second electrode, and a shield situated to block partially the flow of ions between the glow bar electrode and the second electrode, said shield having a plurality of apertures through which ions can flow between the glow bar electrode and the second electrode, each aperture having associated therewith at least one shutter, said shutters being capable of at least partially blocking the flow of ions through the apertures, each shutter individually movable to a plurality of positions to adjust the flow of ions through the apertures.
    Type: Grant
    Filed: September 8, 1992
    Date of Patent: November 23, 1993
    Assignee: Xerox Corporation
    Inventors: John J. Wozniak, Jr., Barry A. Lees, John A. Appoloney, Lloyd A. Relyea, L. John Potter, Frederick L. Kuhn, Edwin R. Kuhn
  • Patent number: 4781683
    Abstract: A single-use, self-annulling syringe is disclosed that is rendered inoperative after a single use without requiring any deliberate action on the part of a user. The injection device uses a hydrophilic expansion plug positioned in the outlet flow channel of the syringe, which expands a short time after being exposed to a drug containing water, thereby rendering the syringe inoperative.
    Type: Grant
    Filed: April 22, 1987
    Date of Patent: November 1, 1988
    Assignee: The Johns Hopkins University
    Inventors: John J. Wozniak, Kam Leong
  • Patent number: 4622970
    Abstract: The invention concerns a means having two instruments for everting an end of a severed artery over a ferrule surrounding the artery. A handle of a flaring instrument is squeezed to rotate a head section. Arms mounted to the head section open in the manner of an iris-diaphragm mechanism to flare the arterial end. Another instrument, curved forceps, urge the artery via the ferrule into the head section such that the arterial end is everted over the ferrule. Two everted arterial ends may be joined by sutureless vascular anastomosis.
    Type: Grant
    Filed: August 29, 1985
    Date of Patent: November 18, 1986
    Assignee: The Johns Hopkins University
    Inventor: John J. Wozniak
  • Patent number: 4596728
    Abstract: A heat shrinkable polymer material is particularly adapted for implanted biomedical use. A polycrystalline polymer is irradiated to produce crosslinking of its intramolecular structure to thereby impart viscoelasticity. The material is biocompatible and suitable for implanted use, from the standpoints of very low toxicity, ability to retain structural integrity and being non-carcinogenic and, moreover, is heat shrinkable at a temperature compatible with such implanted use.
    Type: Grant
    Filed: February 1, 1985
    Date of Patent: June 24, 1986
    Assignees: The Johns Hopkins University, University of Maryland
    Inventors: Hou-Ching Yang, Joseph Silverman, John J. Wozniak
  • Patent number: 4470415
    Abstract: A means and method for sutureless surgical anastomosis. A heat shrinkable sleeve is placed around two tubular members to be anastomosed and then shrunk to engage and maintain the two tubular members in an anastomotic relationship. The ends of the tubular members are everted over rigid or semi-rigid ferrules placed on the ends of the tubular members.
    Type: Grant
    Filed: August 19, 1982
    Date of Patent: September 11, 1984
    Assignee: The Johns Hopkins University
    Inventor: John J. Wozniak