Patents Represented by Attorney John H. Crowe

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  • Water treating device, or similar article
    Patent number: 5010912
    Abstract: A container for solid water soluble fertilizer pellets supported in an upright position by a short vertical water supply pipe through an upper integral inlet pipe and a lower integral outlet pipe. The inlet pipe has a formation designed to direct a portion of a downward stream of water in the supply pipe into the container to augment the force of gravity and cause the diverted water to flow over pellets in the container. The outlet pipe is located at the lower end of the container to direct the water, now with dissolved fertilizer in it, back into the supply stream. A formation on the outlet pipe coacts with the supply stream to aid in circulating water through the container and over the pellets.
    Type: Grant
    Filed: March 15, 1990
    Date of Patent: April 30, 1991
    Inventor: Richard D. Riding
  • Retrievable sealing plug and method of making same
    Patent number: 5000719
    Abstract: A removable sealing plug for the bore of a high pressure oil or gas well incorporating at least one expandable sealing ring mounted on at least one plug part so as to be frictionally engageable with the surface of the bore and a rotatable plug part screw-threaded in the bore and having a coupling device to the sealing ring mounting designed to prevent rotation of the sealing ring and consequent damage to the bore surface or the sealing ring when the rotatable plug part is screwed into or out of the bore for sealing plug installation or removal purposes.
    Type: Grant
    Filed: January 3, 1990
    Date of Patent: March 19, 1991
    Inventor: Lehman T. Reed
  • Variable capacitor and method of making same
    Patent number: 4953057
    Abstract: A variable capacitor formed of two flexible interleaved films, each having a dielectric layer and a superposed electrically conductive layer. The films are coiled about an axis in sliding contact with each other and are movable axially relative to each other to vary the capacitance.
    Type: Grant
    Filed: September 26, 1988
    Date of Patent: August 28, 1990
    Inventor: James L. Davidian
  • Polyfluorinated diisocyanates and fluorinated polyurethanes prepared therefrom
    Patent number: 4942164
    Abstract: Polyfluorinated diisocyanates having the formula OCN--CH.sub.2 CH.sub.2 --(CF.sub.2).sub.n --CH.sub.2 CH.sub.2 --NCO, in which n is a whole number from 2 to 16, inclusive, and their analogous monofunctional isocyanates having the formula F(CF.sub.2).sub.n --CH.sub.2 CH.sub.2 --NCO, wherein n is a whole number from 1 to 20, inclusive. The polyfluorinated diisocyanates react with polyfluorinated diols having the formula HO--CH.sub.2 CH.sub.2 --(CF.sub.2).sub.n --CH.sub.2 CH.sub.2 --OH, wherein n is a whole number of from 1 to 20, inclusive, to form useful fluorinated polyurethanes.
    Type: Grant
    Filed: May 8, 1989
    Date of Patent: July 17, 1990
    Assignee: Fluorochem Inc.
    Inventors: Kurt Baum, Aslam A. Malik, Donald D. Tzeng
  • Positionally adjustable mirror
    Patent number: D307678
    Type: Grant
    Filed: November 20, 1987
    Date of Patent: May 8, 1990
    Inventor: Jerry P. Lookerse
  • Combined rod and reel holder, or similar article
    Patent number: D307787
    Type: Grant
    Filed: August 14, 1987
    Date of Patent: May 8, 1990
    Inventor: John Y. Jacobson
  • Golfer's aiming aid for a tee
    Patent number: D307929
    Type: Grant
    Filed: March 3, 1986
    Date of Patent: May 15, 1990
    Inventor: Charles R. Parkerson
  • Foldable trash bag holder or similar article
    Patent number: D308271
    Type: Grant
    Filed: March 14, 1988
    Date of Patent: May 29, 1990
    Inventor: Richard Vreeken
  • Picture hanger or similar article
    Patent number: D308466
    Type: Grant
    Filed: August 4, 1986
    Date of Patent: June 12, 1990
    Inventor: Ronald B. Fenton
  • Hanger attachment for a picture, or similar article
    Patent number: D308467
    Type: Grant
    Filed: August 4, 1986
    Date of Patent: June 12, 1990
    Inventor: Ronald B. Fenton
  • Caster arm for a mowing machine
    Patent number: D309312
    Type: Grant
    Filed: December 19, 1988
    Date of Patent: July 17, 1990
    Inventor: Robert W. Hass
  • Anchor button for a picture hanging wire, or similar article
    Patent number: D309857
    Type: Grant
    Filed: August 4, 1986
    Date of Patent: August 14, 1990
    Inventor: Ronald B. Fenton
  • Sand diverter bar for use on an earth moving vehicle, or similar article
    Patent number: D311743
    Type: Grant
    Filed: October 22, 1987
    Date of Patent: October 30, 1990
    Inventor: Robert R. Pope
  • Illuminable aerial toy
    Patent number: D312103
    Type: Grant
    Filed: January 13, 1989
    Date of Patent: November 13, 1990
    Inventor: Jerril C. Lenox
  • Battery-powered night light with foot-operated pressure switch pad for a commode
    Patent number: D313082
    Type: Grant
    Filed: July 20, 1987
    Date of Patent: December 18, 1990
    Inventor: James W. Clarkson, Jr.
  • Portable, height adjustable battery-powered fan
    Patent number: D314048
    Type: Grant
    Filed: September 25, 1989
    Date of Patent: January 22, 1991
    Inventor: Raymond Leon, Jr.
  • Jewelry finding
    Patent number: D314356
    Type: Grant
    Filed: April 18, 1988
    Date of Patent: February 5, 1991
    Inventor: Franklin A. Mason
  • Plant marker stake
    Patent number: D314493
    Type: Grant
    Filed: February 1, 1989
    Date of Patent: February 12, 1991
    Inventor: Joseph P. Keane
  • Windshield washer nozzle removing tool
    Patent number: D314497
    Type: Grant
    Filed: August 9, 1988
    Date of Patent: February 12, 1991
    Inventors: Douglas J. Symiczek, Jose L. Cardenas
  • Vehicle service trailer, or similar article
    Patent number: D316384
    Type: Grant
    Filed: November 28, 1988
    Date of Patent: April 23, 1991
    Inventor: Raymond E. Teagarden