Patents by Inventor David A. Wolf

David A. Wolf 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: 6373664
    Abstract: A disk drive suspension assembly of a flexure and a flexure support, the flexure having a tongue adapted to carry in gimbaling relation a slider in operating proximity to a disk, the flexure support and the flexure tongue defining cooperating structures which limit motion of the tongue relative to the disk to a predetermined range.
    Type: Grant
    Filed: October 6, 2000
    Date of Patent: April 16, 2002
    Assignee: Magnecomp Corp.
    Inventors: Warren Coon, Amanullah Khan, Gustavo Nuno, David Wolf
  • Patent number: 6367145
    Abstract: A disk drive suspension assembly of a flexure and a flexure support, the flexure having a tongue adapted to carry in gimbaling relation a slider in operating proximity to a disk, the flexure support and the flexure tongue defining cooperating structures which limit motion of the tongue relative to the disk to a predetermined range.
    Type: Grant
    Filed: October 6, 2000
    Date of Patent: April 9, 2002
    Assignee: Magnecomp Corp.
    Inventors: Warren Coon, Amanullah Khan, Gustavo Nuno, David Wolf
  • Publication number: 20020009797
    Abstract: The present invention provides systems for growing two or three dimensional mammalian cells within a culture medium facilitated by an electromagnetic field, and preferably, a time varying electromagnetic field. The cells and culture medium are contained within a fixed or rotating culture vessel, and the electromagnetic field is emitted from at least one electrode. In one embodiment, the electrode is spaced from the vessel. The invention further provides methods to promote neural tissue regeneration by means of culturing the neural cells in the claimed system. In one embodiment, neuronal cells are grown within longitudinally extending tissue strands extending axially along and within electrodes comprising electrically conductive channels or guides through which a time varying electrical current is conducted, the conductive channels being positioned within a culture medium.
    Type: Application
    Filed: February 28, 2001
    Publication date: January 24, 2002
    Applicant: National Aeronautics & Space Administration
    Inventors: David A. Wolf, Thomas J. Goodwin
  • Publication number: 20020007937
    Abstract: A capillary pump two phase heat transport system that combines the most favorable characteristics of a capillary pump loop (CPL) with the robustness and reliability of a loop heat pipe (LHP). Like a CPL, the hybrid loop has plural parallel evaporators, plural parallel condensers, and a back pressure flow regulator. Unlike CPLs, however, the hybrid system incorporates elements that form a secondary loop, which is essentially a LHP that is co-joined with a CPL to form an inseparable whole. Although secondary to the basic thermal management of the system thermal bus, the LHP secondary loop portion of the system provides for important operational functions that maintain healthy, robust and reliable operation. The LHP secondary loop portion provides a function of fluid management during start-up, steady state operation, and heat sink/heat source temperature and power cycling.
    Type: Application
    Filed: June 29, 2001
    Publication date: January 24, 2002
    Inventors: Edward J. Kroliczek, David A. Wolf, James Seokgeun Yun
  • Patent number: 6137657
    Abstract: A disk drive suspension assembly of a flexure and a flexure support, the flexure having a tongue adapted to carry in gimbaling relation a slider in operating proximity to a disk, the flexure support and the flexure tongue defining cooperating structures which limit motion of the tongue relative to the disk to a predetermined range.
    Type: Grant
    Filed: March 23, 1999
    Date of Patent: October 24, 2000
    Assignee: Magnecomp Corp.
    Inventors: Warren Coon, Amanullah Khan, Gustavo Nuno, David Wolf
  • Patent number: 6117674
    Abstract: A process for propagating a pathogen in a three-dimensional tissue mass cultured at microgravity conditions in a culture vessel containing culture media and a culture matrix is provided. The three-dimensional tissue mass is inoculated with a pathogen and pathogen replication in the cells of the tissue mass achieved.
    Type: Grant
    Filed: December 29, 1994
    Date of Patent: September 12, 2000
    Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space Administration
    Inventors: Thomas J. Goodwin, Glenn F. Spaulding, David A. Wolf
  • Patent number: 5947887
    Abstract: A toxic waste and glass frit are fed into an extruder having a helical screw. The glass frit, as well as any glassy material and glass-forming component in the waste, are melted in the extruder as the screw transports the waste and the frit through the extruder. The screw further mixes the waste and the frit and homogenizes the resulting mixture. The extruder is designed to generate high shear rates and high internal friction and at least a portion of the heat for melting is produced by such friction. A vitrified mass of the toxic waste is discharged from the extruder. The vitrified mass can be stored as is or can be pelletized and/or encapsulated.
    Type: Grant
    Filed: April 1, 1998
    Date of Patent: September 7, 1999
    Assignee: Extruder Vitrification Group, L.L.C.
    Inventors: Donald H. White, Asher N. Sembira, David Wolf
  • Patent number: 5930079
    Abstract: Unduly large travel of a flexure resulting in overflexure or the permanent loss of dimple contact between flexure and load beam in a disk drive suspension is blocked by having the flexure and load beam loosely coupled by a blocking structure which freely permits desired movement, within a predetermined range, but blocks other movement, by defining a gap between flexure and load beam equal to or less than the maximum tolerable amount of travel against movement beyond the predetermined range.
    Type: Grant
    Filed: September 25, 1996
    Date of Patent: July 27, 1999
    Assignee: Magnecomp Corp.
    Inventors: Daniel Vera, David Wolf, Warren Coon, Aman Khan
  • Patent number: 5920987
    Abstract: Load beam for supporting a terminally disposed flexure carrying a head slider in operative association with a removable disk drive and an actuator for shifting the load beam along its longitudinal axis, the load beam being formed of a single member and having an integrally formed laterally projecting cam follower unitary therewith for effective lifting of the head slider from the disk.
    Type: Grant
    Filed: October 15, 1998
    Date of Patent: July 13, 1999
    Assignee: Magnecomp Corp.
    Inventors: Daniel Vera, David Wolf
  • Patent number: 5908149
    Abstract: An improved surgical stapler which allows for the multi-directional release of staples includes a stapler body and a driver contained therein. A magazine is connected to the stapler body and includes a staple track for carrying a plurality of staples wherein each of the staples has staple legs. An anvil is associated with the staple track for providing a staple forming surface for forming a staple thereon. A feeder element which is spring biased against the staples is used for feeding each staple from the staple track to the anvil. A trigger is operatively connected to the driver and is movable from a pre-fire position to a firing position for advancing the driver against the anvil for forming the staple against the anvil. A kick-off spring is positioned beneath and substantially parallel to the staple track and the anvil.
    Type: Grant
    Filed: March 12, 1997
    Date of Patent: June 1, 1999
    Assignee: Ethicon Endo-Surgery, Inc.
    Inventors: Robert F. Welch, Steven W. Hamblin, Robert L. Koch, Jr., John I. Izuchukwu, Jeff Kirk, John Kretchman, Richard Schweet, David Wolf, Charles Hansford, Navneet Tony Sharma, John Mertz
  • Patent number: 5891652
    Abstract: Defined constructs of modified human platelet-derived growth factor receptor polypeptides are provided. Extracellular region domain structures are identified and modifications and combinatorial rearrangements of the receptor segments are provided. Both cell bound and soluble forms of modified segments are made available, as are methods for assays using them, allowing for screening of ligand analogues.
    Type: Grant
    Filed: June 2, 1995
    Date of Patent: April 6, 1999
    Assignee: The Regents of the University of California
    Inventors: David Wolf, James E. Tomlinson, Larry J. Fretto, Neill A. Giese, Jaime A. Escobedo, Lewis Thomas Williams
  • Patent number: 5872218
    Abstract: This invention provides antibodies that bind to epitopes of human platelet-derived growth factor receptor (hPDGF-R) fragments, wherein the fragments comprise one or more platelet-derived growth factor (PDGF) ligand binding regions from extracellular domains D1, D2, and D3. Also provided are antibodies specific for domain D3, such as monoclonal antibodies directed to the intra-cysteine portion of domain D3.
    Type: Grant
    Filed: June 2, 1995
    Date of Patent: February 16, 1999
    Assignees: COR Therapeutics, Inc., The Regents of the University of California
    Inventors: David Wolf, James E. Tomlinson, Larry J. Fretto, Neill A. Giese, Jaime A. Escobedo, Lewis Thomas Williams
  • Patent number: 5862018
    Abstract: Load beam for supporting a terminally disposed flexure carrying a head slider in operative association with a removable disk drive and an actuator for shifting the load beam along its longitudinal axis, the load beam being formed of a single member and having an integrally formed laterally projecting cam follower unitary therewith for effective lifting of the head slider from the disk.
    Type: Grant
    Filed: October 2, 1997
    Date of Patent: January 19, 1999
    Assignee: Magnecomp Corporation
    Inventors: Daniel Vera, David Wolf
  • Patent number: 5858783
    Abstract: Normal mammalian tissue and the culturing process has been developed for the three groups of organ, structural and blood tissue. The cells are grown in vitro under micro-gravity culture conditions and form three dimensional cells aggregates with normal cell function. The microgravity culture conditions may be microgravity or simulated micro-gravity created in a horizontal rotating wall culture vessel. The medium used for culturing the cells, especially a mixture of epithelial and mesenchymal cells contains a mixture of Mem-alpha and Leibovits L15 supplemented with glucose, galactose and fructose.
    Type: Grant
    Filed: March 1, 1996
    Date of Patent: January 12, 1999
    Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space Administration
    Inventors: Thomas J. Goodwin, David A. Wolf, Glenn F. Spaulding, Tacey L. Prewett
  • Patent number: 5851816
    Abstract: Artificial high-fidelity three-dimensional human urogenital tract carcinomas are propagated under in vitro-microgravity conditions from carcinoma cells. Artificial high-fidelity three-dimensional human urogenital tract carcinomas are also propagated from a coculture of normal urogenital tract cells inoculated with carcinoma cells. The microgravity culture conditions may be microgravity or simulated microgravity created in a horizontal rotating wall culture vessel.
    Type: Grant
    Filed: December 27, 1993
    Date of Patent: December 22, 1998
    Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space Administration
    Inventors: Thomas J. Goodwin, Tacey L. Prewett, Glenn F. Spaulding, David A. Wolf
  • Patent number: 5795863
    Abstract: Analogs of Factor Xa (Factor Xai) which are inactive as proteases in the prothrombinase reaction are useful in treatment of diseases characterized by thrombosis. These antithrombotic agents can be conveniently prepared using recombinant techniques.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: August 18, 1998
    Assignee: COR Therapeutics, Inc.
    Inventor: David Wolf
  • Patent number: 5742454
    Abstract: Load beam for supporting a terminally disposed flexure carrying a head slider in operative association with a removable disk drive and an actuator for shifting the load beam along its longitudinal axis, the load beam being formed of a single member and having an integrally formed laterally projecting cam follower unitary therewith for effective lifting of the head slider from the disk.
    Type: Grant
    Filed: November 25, 1996
    Date of Patent: April 21, 1998
    Assignee: Magnecomp Corp.
    Inventors: Daniel Vera, David Wolf
  • Patent number: 5686572
    Abstract: Defined constructs of modified human platelet-derived growth factor receptor polypeptides are provided. Extracellular region domain structures are identified and modifications and combinatorial rearrangements of the receptor segments are provided. Both cell bound and soluble forms of modified segments are made available, as are methods for assays using them, allowing for screening of ligand analogues.
    Type: Grant
    Filed: December 15, 1993
    Date of Patent: November 11, 1997
    Assignees: Cor Therapeutics, Inc., The Regents of the University of California
    Inventors: David Wolf, James E. Tomlinson, Larry J. Fretto, Neill A. Giese, Jaime A. Escobedo, Lewis Thomas Williams
  • Patent number: D454483
    Type: Grant
    Filed: November 30, 2000
    Date of Patent: March 19, 2002
    Assignee: Allied Bolts, Inc.
    Inventor: David Wolf
  • Patent number: D418751
    Type: Grant
    Filed: August 14, 1998
    Date of Patent: January 11, 2000
    Inventor: David Wolf