Patents by Inventor Robert T. Stewart, Jr.

Robert T. Stewart, Jr. 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).

  • Publication number: 20190239980
    Abstract: Provided herein are systems, devices, assemblies, and methods for localization of a tag in a tissue of a patient. For example, provided herein are systems, devices, and methods employing a detection component that is attached to or integrated with a surgical device, where the detection component detects a signal from a tag in a patient, where the tag is activated by remote introduction of a magnetic field.
    Type: Application
    Filed: March 18, 2019
    Publication date: August 8, 2019
    Inventors: Daniel W. van der Weide, Fred T. Lee, JR., Robert C. Stewart, Lee G. Wilke
  • Patent number: 7984706
    Abstract: A method and system controls motion of an armature 112 of a fuel injector 100. The armature moves between an open coil 118 and a close coil 116 of the injector. Acceleration current of a certain polarity is applied to the open coil 118 with the armature disposed at the close coil 116. De-latching current of a polarity opposite of the certain polarity is applied to the close coil 116 to release magnetic latch on the armature thereby accelerating movement of the armature towards the open coil 118. Deceleration current is applied the close coil 116 thereby decelerating the armature prior to reaching the open coil. Latching current of the certain polarity is applied to the open coil 118 prior to or just after impact of the armature 112 with the open coil 118 to magnetically latch the armature to the open coil 118 thereby reducing bounce of the armature at impact.
    Type: Grant
    Filed: October 22, 2008
    Date of Patent: July 26, 2011
    Assignee: Continental Automotive Systems US, Inc.
    Inventors: Robert T. Stewart, Jr., Ricky Lee Dynes, Benjamin Daniel Wisdom
  • Publication number: 20090139490
    Abstract: A method and system controls motion of an armature 112 of a fuel injector 100. The armature moves between an open coil 118 and a close coil 116 of the injector. Acceleration current of a certain polarity is applied to the open coil 118 with the armature disposed at the close coil 116. De-latching current of a polarity opposite of the certain polarity is applied to the close coil 116 to release magnetic latch on the armature thereby accelerating movement of the armature towards the open coil 118. Deceleration current is applied the close coil 116 thereby decelerating the armature prior to reaching the open coil. Latching current of the certain polarity is applied to the open coil 118 prior to or just after impact of the armature 112 with the open coil 118 to magnetically latch the armature to the open coil 118 thereby reducing bounce of the armature at impact.
    Type: Application
    Filed: October 22, 2008
    Publication date: June 4, 2009
    Applicant: Continental Automotive System US, Inc.
    Inventors: Robert T. Stewart, JR., Ricky Lee Dynes, Benjamin Daniel Wisdom
  • Patent number: 4543002
    Abstract: This disclosure describes a simplified mechanism by which a multitude of ribbon styles may be both transported across a record medium of a data communications printer and shifted band to band to obtain color printing results.
    Type: Grant
    Filed: June 16, 1983
    Date of Patent: September 24, 1985
    Assignee: Genicom Corporation
    Inventors: John R. Bittner, Ralph S. Billing, Robert T. Stewart, Jr.
  • Patent number: 4482148
    Abstract: A variable-width friction-feed paper handling apparatus includes a rotatable drive shaft and a stabilizing shaft spaced therefrom and parallel thereto. Two carriage assemblies bridge the drive shaft and stabilizing shaft and are supported thereby and are adapted for sliding movement longitudinally therealong for accommodating varying widths of paper therebetween. Each carriage assembly includes a drive roller coaxial with the drive shaft for rotation thereby and a pivoting gate which rotatably carries a pressure roller, the gate being movable between a loading position accommodating placement of paper between the carriage assemblies and a feeding position wherein the pressure roller is in parallel cooperation with the drive roller frictionally to feed paper therebetween. Over-center springs hold the gate in its two positions and leaf springs resiliently mount the pressure roller. Each carriage assembly carries paper guide device.
    Type: Grant
    Filed: April 26, 1982
    Date of Patent: November 13, 1984
    Assignee: Genicom Corporation
    Inventor: Robert T. Stewart, Jr.