Patents by Inventor David B. Smith

David B. Smith 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: 5493030
    Abstract: The disclosed hexenoic acid side-chain derivatives of mycophenolic acid are therapeutic agents advantageous in the treatment of disease states indicated for mycophenolic acid and/or mycophenolate mofetil, including immune, inflammatory, tumor, proliferative, viral or psoriatic disorders.
    Type: Grant
    Filed: February 18, 1994
    Date of Patent: February 20, 1996
    Assignee: Syntex (U.S.A.) Inc.
    Inventors: David Morgans, Jr., David B. Smith, Francisco X. Talamas, Dean R. Artis, Alicia Cervantes, Todd R. Elworthy, Mario Fernandez, Fidencio Franco, Ronald C. Hawley, Teresa Lara, David G. Loughhead, Peter H. Nelson, John W. Patterson, John C. Rohloff, Eric B. Sjogren, Alejandra Trejo, Ann M. Waltos, Robert J. Weikert
  • Patent number: 5450123
    Abstract: This invention relates to an arrangement for supplying audio and video signals from separate sources to a video telecommunication station. In one embodiment, the audio is supplied, for example, by a stock broker or agent, while the video is supplied by a separate source controlled by the agent. Advantageously, pre-planned video from a common source, or video from a separate camera, can be supplied to a caller along with the audio message from the agent.
    Type: Grant
    Filed: August 19, 1994
    Date of Patent: September 12, 1995
    Assignee: AT&T Corp.
    Inventor: David B. Smith
  • Patent number: 5444072
    Abstract: The disclosed 6-substituted derivatives of mycophenolic acid are therapeutic agents advantageous in the treatment of disease states indicated for mycophenolic acid and/or mycophenolate mofetil.
    Type: Grant
    Filed: February 18, 1994
    Date of Patent: August 22, 1995
    Assignee: Syntex (U.S.A.) Inc.
    Inventors: John W. Patterson, David Morgans, Jr., David B. Smith, Francisco X. Talamas, Dean R. Artis, Alicia Cervantes, Todd R. Elworthy, Mario Fernandez, Fidencio Franco, Ronald C. Hawley, Teresa Lara, David G. Loughhead, Peter H. Nelson, Eric B. Sjogren, Alejandra Trejo, Ann M. Waltos, Robert J. Weikert
  • Patent number: 5374821
    Abstract: Fiber optic sensing means for the detection and measurement of events such as dynamic loadings imposed upon elastic materials including cementitious materials, elastomers, and animal body components and/or the attrition of such elastic materials are provided. One or more optical fibers each having a deformable core and cladding formed of an elastomeric material such as silicone rubber are embedded in the elastic material. Changes in light transmission through any of the optical fibers due the deformation of the optical fiber by the application of dynamic loads such as compression, tension, or bending loadings imposed on the elastic material or by the attrition of the elastic material such as by cracking, deterioration, aggregate break-up, and muscle, tendon, or organ atrophy provide a measurement of the dynamic loadings and attrition.
    Type: Grant
    Filed: June 30, 1993
    Date of Patent: December 20, 1994
    Assignee: Martin Marietta Energy Systems, Inc.
    Inventors: Jeffrey D. Muhs, Gary J. Capps, David B. Smith, Clifford P. White
  • Patent number: 5071187
    Abstract: An overhead guard assembly for use on an materials handling vehicle provides the operator with protection against falling objects. The assembly includes first and second frame members supported by the vehicle and positioned on either side of the operator, and a plate member placed between and secured to the frame members over the head of the operator. A plurality of openings are formed in the plate member to provide the operator a clear view upwardly through said overhead guard. The openings in said overhead guard are arranged in rows and a plurality of strengthening ribs are placed in the plate member between the rows and extend from one frame member to the other. The strengthening ribs are formed by reverse bending the plate member to provide a rib surface orientated at an angle of approximately 50.degree. with respect to the horizontal to provide minimum visual obstruction to the operator.
    Type: Grant
    Filed: November 29, 1990
    Date of Patent: December 10, 1991
    Assignee: Crown Equipment Corporation
    Inventors: David B. Smith, Rainer Teufel
  • Patent number: 4759879
    Abstract: An alkoxide glass former composition has silica-containing constituents present as solid particulates of a particle size of 0.1 to 0.7 micrometers in diameter in a liquid carrier phase substantially free of dissolved silica. The glass former slurry is resistant to coagulation and may contain other glass former metal constituents. The immobilization of nuclear waste employs the described glass former by heating the same to reduce the volume, mixing the same with the waste, and melting the resultant mixture to encapsulate the waste in the resultant glass.
    Type: Grant
    Filed: January 28, 1986
    Date of Patent: July 26, 1988
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: Laurence H. Cadoff, David B. Smith-Magowan
  • Patent number: 4728916
    Abstract: This invention relates to an improved solenoid operated fluid control valve particularly adapted for use as a vacuum control switch in a motor vehicle. One aspect of this invention is the provision of a coil assembly adapted to be wound and terminated using completely automated processes. This feature is provided through the use of a bobbin structure having protruding coil winding posts which position the start and finish ends of the coil wire. Terminal members are installed onto the bobbin and have terminal contact portions which can be folded onto the wire. Another feature of this invention involves means for reducing noise generated from actuation of the valve device. In conventional solenoid employing a "C" frame member, direct mechanical contact exists between the "C" frame member and another component of the magnetic circuit of the solenoid.
    Type: Grant
    Filed: June 5, 1986
    Date of Patent: March 1, 1988
    Assignee: Lectron Products, Inc.
    Inventors: Robert P. Fontecchio, Michael Slavin, David B. Smith
  • Patent number: 4695050
    Abstract: An exercise rowing machine includes a frame (10) constructed with a longitudinal beam structure (12) overlying a forward substructure (14) A seat (24) is mounted on an underlying carriage assembly (26) having rollers (138) and (140) which ride on upper and lower rails (114) and (120) of a first track (110), and rollers (150) which ride on upper and lower rails (122) and (128) of a second track (112). Both tracks (110) and (112) are integrally formed with frame beam structure (12) in the interior thereof. A support stand (180) for supporting the rearward end of frame (10) above the floor at a desired elevation is constructed with a plurality of upwardly open troughs (184A, 184B and 184C) which receive a lip portion (188) extending downwardly from rear crossmember (82) of the machine frame (10).
    Type: Grant
    Filed: September 16, 1985
    Date of Patent: September 22, 1987
    Assignee: Precor Incorporated
    Inventors: David B. Smith, Randolph F. Miller
  • Patent number: 4592544
    Abstract: A stationary exercise apparatus intended to simulate the action of pedaling a bicycle includes a base and a flywheel mounted on the base for rotation about a vertical axis. The flywheel is coupled in driven relationship to a pair of pedal cranks mounted on the base. The pedal cranks are mounted for rotation about a horizontal axis as in a conventional bicycle. Preferably, the flywheel is mounted directly below the pedals on a shaft whose upper end is formed to be a worm, the worm being driven by a drive gear attached to the pedal cranks. The orientation and location of the flywheel add to the stability of the exercise device as well as aiding in the outward appearance of the device.
    Type: Grant
    Filed: May 8, 1985
    Date of Patent: June 3, 1986
    Assignee: Precor Incorporated
    Inventors: David B. Smith, Randolph F. Miller, John M. Moore
  • Patent number: 4591147
    Abstract: A system for selectively positioning one end of a treadmill running machine at one of the plurality of locked positions in order to provide an inclined running surface. A support assembly having a ground engaging roller disposed between a pair of arms is pivotally connected to the frame of the treadmill for swinging movement between a retracted position adjacent the frame and one of a plurality of downward, extended positions. So that the treadmill may be easily raised and lowered to a desired operating position, a gas spring is provided for each of the arms of the support assembly. The upper end of each gas spring is securely connected to the frame, while the lower end is pivotally attached to its respective arm. To maintain the support assembly in one of its extended positions, a slide-tube assembly having a releasable clamping sleeve is associated with each of the arms and pivotally connected to the frame and arm to accommodate the swinging movement of the support assembly.
    Type: Grant
    Filed: September 6, 1984
    Date of Patent: May 27, 1986
    Assignee: Precor Incorporated
    Inventors: David B. Smith, John M. Moore
  • Patent number: D283239
    Type: Grant
    Filed: January 19, 1984
    Date of Patent: April 1, 1986
    Assignee: Precor, Incorporated
    Inventors: David B. Smith, John M. Moore
  • Patent number: D283530
    Type: Grant
    Filed: January 19, 1984
    Date of Patent: April 22, 1986
    Assignee: Precor, Incorporated
    Inventors: David B. Smith, William W. Potts
  • Patent number: D284597
    Type: Grant
    Filed: January 29, 1985
    Date of Patent: July 8, 1986
    Assignee: Precor Incorporated
    Inventors: David B. Smith, Gary M. Bang
  • Patent number: D291823
    Type: Grant
    Filed: September 16, 1985
    Date of Patent: September 8, 1987
    Assignee: Precor Incorporated
    Inventors: David B. Smith, Randolph F. Miller
  • Patent number: D299369
    Type: Grant
    Filed: October 9, 1986
    Date of Patent: January 10, 1989
    Assignee: Precor Incorporated
    Inventors: David B. Smith, Larry J. Graf, Randolph F. Miller
  • Patent number: D300046
    Type: Grant
    Filed: February 6, 1987
    Date of Patent: February 28, 1989
    Assignee: Precor Incorporated
    Inventors: Timothy O. Armstrong, David B. Smith, Randolph F. Miller
  • Patent number: D302451
    Type: Grant
    Filed: February 6, 1987
    Date of Patent: July 25, 1989
    Assignee: Precor Incorporated
    Inventors: John W. Bull, David B. Smith
  • Patent number: D303695
    Type: Grant
    Filed: January 5, 1987
    Date of Patent: September 26, 1989
    Assignee: Precor Incorporated
    Inventors: David B. Smith, Larry J. Graf, Randolph F. Miller
  • Patent number: D304358
    Type: Grant
    Filed: October 21, 1987
    Date of Patent: October 31, 1989
    Assignee: Precor Incorporated
    Inventors: Timothy O. Armstrong, John W. Bull, David B. Smith
  • Patent number: D314597
    Type: Grant
    Filed: February 9, 1989
    Date of Patent: February 12, 1991
    Assignee: Precor Incorporated
    Inventors: Timothy O. Armstrong, John W. Bull, David B. Smith