Patents by Inventor Clark E. Stohl

Clark E. Stohl 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).

  • Spiral ripple circumferential flow heat exchanger
    Patent number: 5343936
    Abstract: The invention relates to an improved energy exchange structure, comprising generally parallel plates,connected to define a hollow passageway for the generally circumferential flow of fluid between an inlet and an outlet, said plates undulating in cross-section to define obliquely disposed crossing opposing valleys arranged in a spiral disposition.
    Type: Grant
    Filed: November 24, 1992
    Date of Patent: September 6, 1994
    Assignee: Long Manufacturing Ltd.
    Inventors: Paul K. Beatenbough, Kris J. Meekins, Clark E. Stohl
  • Circumferential flow heat exchanger
    Patent number: 5203832
    Abstract: The invention relates to an improved energy exchange structure, comprising generally parallel plates, joined to define a hollow passageway for the generally circular flow of fluid between an inlet and an outlet, said plates undulating in cross-structure to define obliquely disposed crossing opposing valleys, and comprising multiple sets of generally parallel valleys and an involute disposition of said valleys.
    Type: Grant
    Filed: November 17, 1989
    Date of Patent: April 20, 1993
    Assignee: Long Manufacturing Ltd.
    Inventors: Paul K. Beatenbough, Kris J. Meekins, Clark E. Stohl
  • Methods and apparatus for disintegration of urinary calculi under direct vision
    Patent number: 4602633
    Abstract: A method and apparatus are provided for machining and disintegrating urinary calculi by subjecting the urinary calculi to ultrasonic forces transmitted by a wave guide in one passageway of a catheter while under observation through an optical system in a second parallel passage in the catheter.
    Type: Grant
    Filed: November 16, 1984
    Date of Patent: July 29, 1986
    Assignee: Blackstone Corporation
    Inventors: Roger Goodfriend, Clark E. Stohl
  • Wave guide attachment means and methods
    Patent number: 4572184
    Abstract: A transducer, wave guide and attachment means are provided as a screw member adapted to fit in a threaded opening in a transducer and having a tool engaging head at one end, an axial passage therethrough, a recess around the axial passage at the end opposite the tool engaging head, a wave guide slip fitted in the passage with a solidified bonding mass such as braze alloy or solder around the end of the wave guide in the recess.
    Type: Grant
    Filed: October 28, 1983
    Date of Patent: February 25, 1986
    Assignee: Blackstone Corporation
    Inventors: Clark E. Stohl, Eugene DeCastro