Patents by Inventor Mark A. Morgan

Mark A. Morgan 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: 6286553
    Abstract: A closure for an opening extending through a tubular member, the opening having a first cylindrical surface of a first internal diameter and a second cylindrical surface of an enlarged internal diameter providing a circumferential ledge, and, in the second cylindrical surface an increased internal diameter circumferential slot, the closure being formed of a cylindrical plug removably positioned within the tubular member and in engagement with the circumferential ledge and including an expandable snap ring having a collapsed and an expanded condition and receivable when in the expanded condition within the circumferential slot to capture the plug between the circumferential ledge and the snap ring. In one embodiment the snap ring is a unitary circumferential member having opposed, spaced apart first and second ends and wherein the snap ring is radially inwardly collapsed by moving the first and second ends towards each other.
    Type: Grant
    Filed: January 9, 2001
    Date of Patent: September 11, 2001
    Assignee: TDW Delaware, Inc.
    Inventor: Mark A. Morgan
  • Publication number: 20010012935
    Abstract: An ablation catheter including a probe, an electrode mounted on the probe so as to be movable relative thereto, a remote-operated actuator means for moving the electrode, an elongate conductor connected to the electrode and insulation provided around the conductor. The insulation can include a sleeve axially slidable on the probe, the elongate conductor extending longitudinally between the probe and the insulation sleeve and the insulation sleeve being retractable at least in part into a recess formed in a rearward portion of the probe.
    Type: Application
    Filed: April 11, 2001
    Publication date: August 9, 2001
    Applicant: C.R. Bard, Inc.
    Inventors: John Mark Morgan, Andrew David Cunningham
  • Patent number: 6245066
    Abstract: With reference to the figure, an ablation catheter (1) for use in heart surgery comprises a probe (2), a tubular electrode (3) mounted on the probe, so as to axially be slidable relative thereto, and remote-operated actuator means (4) for so sliding the electrode (3). The probe (2) is of electrically-insulating material, and comprises a tip (6), an axially-extending shaft (7), and a rear end portion (8). A surface groove (9) is formed in the probe which extends longitudinally up to the tip (6). The groove (9) locates a conductor (10) which interconnects the electrode (3) with a controllable source (15) of electrical energy and is enclosed in an insulating sheath (16) of flexible construction. The flexible sheath (16), and conductor (10) therein are axially slidable within the groove (9) of the catheter (1). The sheath (16) provides for electrical insulation of the conductor (10) as the electrode (3) is moved along the probe shaft (7).
    Type: Grant
    Filed: November 11, 1998
    Date of Patent: June 12, 2001
    Assignee: C. R. Bard, Inc.
    Inventors: John Mark Morgan, Andrew David Cunningham
  • Patent number: 4306363
    Abstract: A side cutter apparatus for an excavating machine having a plurality of spaced rotating digging wheels mounted on a common horizontal shaft, each wheel having a pair of spaced sidewalls, and having frame rails partially extending into the spaces between adjacent wheels; which includes a base plate affixed to the periphery of a cut-away section of a sidewall adjacent to the open space between the wheels; a pivotal side cutter including a back panel disposed in the cut-away section and pivotally mounted at its lower end on the base plate so as to pivot into the open space, a front panel disposed essentially parallel to the back panel and pivotally mounted at its lower end on a common axis with the back panel so as to be pivotally movable therewith, a cutting tooth affixed to the upper portion of the front panel and extending into the open space, a roller rotatably mounted on an axis perpendicular to the front panel and extending through the same into a vertical space between the panels wherein the roller is dir
    Type: Grant
    Filed: April 18, 1980
    Date of Patent: December 22, 1981
    Assignee: Unit Rig & Equipment Co.
    Inventors: George O. Greene, Mark A. Morgan, Brian G. Anderson