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).
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Patent number: 7198301Abstract: 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: GrantFiled: November 1, 2002Date of Patent: April 3, 2007Assignee: The Johns Hopkins UniversityInventors: John J. Wozniak, Richard J. Hildebrand
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Publication number: 20040239095Abstract: 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: ApplicationFiled: May 5, 2004Publication date: December 2, 2004Inventors: John J. Wozniak, Richard J Hildebrand
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Patent number: 6418962Abstract: 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: GrantFiled: October 27, 1999Date of Patent: July 16, 2002Assignee: The Johns Hopkins UniversityInventors: John J. Wozniak, Paul D. Wienhold, Dale B. Tiller
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Patent number: 6321775Abstract: 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: GrantFiled: October 27, 1999Date of Patent: November 27, 2001Assignee: The Johns Hopkins UniversityInventors: Richard J. Hildebrand, John J. Wozniak
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Patent number: 6257360Abstract: 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: GrantFiled: October 27, 1999Date of Patent: July 10, 2001Assignee: The Johns Hopkins UniversityInventors: John J. Wozniak, Dale B. Tiller, Paul D. Wienhold, Richard J. Hildebrand
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Patent number: 6080461Abstract: 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: GrantFiled: March 10, 1994Date of Patent: June 27, 2000Assignee: The Johns Hopkins UniversityInventors: John J. Wozniak, Michael C. Robertson
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Patent number: 5264256Abstract: 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: GrantFiled: September 8, 1992Date of Patent: November 23, 1993Assignee: Xerox CorporationInventors: John J. Wozniak, Jr., Barry A. Lees, John A. Appoloney, Lloyd A. Relyea, L. John Potter, Frederick L. Kuhn, Edwin R. Kuhn
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Patent number: 4781683Abstract: 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: GrantFiled: April 22, 1987Date of Patent: November 1, 1988Assignee: The Johns Hopkins UniversityInventors: John J. Wozniak, Kam Leong
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Patent number: 4622970Abstract: 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: GrantFiled: August 29, 1985Date of Patent: November 18, 1986Assignee: The Johns Hopkins UniversityInventor: John J. Wozniak
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Patent number: 4596728Abstract: 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: GrantFiled: February 1, 1985Date of Patent: June 24, 1986Assignees: The Johns Hopkins University, University of MarylandInventors: Hou-Ching Yang, Joseph Silverman, John J. Wozniak
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Patent number: 4470415Abstract: 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: GrantFiled: August 19, 1982Date of Patent: September 11, 1984Assignee: The Johns Hopkins UniversityInventor: John J. Wozniak