Patents by Inventor John S. Tobias

John S. Tobias 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: 7800369
    Abstract: Remote adjustment of a selected one of a plurality of adjustable NMR probe circuit components is achieved with a plurality of selectable linear actuators, the selected one of which urges a platen against a respective driven gear, azimuthally locked to its shaft, to displace it axially along that shaft. When the driven gear engages a driving gear a single driving motor is energized and controlled to effect the desired adjustment.
    Type: Grant
    Filed: May 30, 2008
    Date of Patent: September 21, 2010
    Assignee: Varian, Inc.
    Inventors: Xiao Zhang, John S. Tobias
  • Publication number: 20090295388
    Abstract: Remote adjustment of a selected one of a plurality of adjustable NMR probe circuit components is achieved with a plurality of selectable linear actuators, the selected one of which urges a platen against a respective driven gear, azimuthally locked to its shaft, to displace it axially along that shaft. When the driven gear engages a driving gear a single driving motor is energized and controlled to effect the desired adjustment.
    Type: Application
    Filed: May 30, 2008
    Publication date: December 3, 2009
    Inventors: Xiao Zhang, John S. Tobias
  • Patent number: 5823791
    Abstract: A connector assembly for detachably connecting a coaxial transmission line connector to a strip lead formed on a printed wiring board is disclosed. The connector assembly includes a metallic housing to house a printed wiring board circuit having a micro-strip defined by a lead on one surface of the board and a ground plane on the other surface of the board. The housing includes a low-impedance, coaxial line section formed by an opening extending through one wall of the housing and a center conductor supported in the opening by a dielectric sleeve. A connector with a lead connected to the micro-strip lead and a body with a central insulated socket spaced from a ground plane on the surface of the board forms a transmission line section. The center conductor is slidably received in the socket, whereby the coaxial connector can be easily attached to connect the printed wiring board to the coaxial transmission line.
    Type: Grant
    Filed: November 6, 1996
    Date of Patent: October 20, 1998
    Assignee: Watkins-Johnson Company
    Inventors: John V. Bellantoni, John S. Tobias
  • Patent number: 5613859
    Abstract: A connector assembly for detachably connecting a coaxial transmission line to a micro-strip lead formed on a printed wiring board is disclosed.
    Type: Grant
    Filed: November 28, 1995
    Date of Patent: March 25, 1997
    Assignee: Watkins-Johnson Company
    Inventors: John V. Bellantoni, John S. Tobias