Patents by Inventor Ormond S. Douglas

Ormond S. Douglas 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: 6338511
    Abstract: A shovel for manual use, comprising a shovel blade having concave and convex faces and defining a longitudinal center-line and having side edges, an upper edge and a forward cutting edge. The shovel blade defines a handle connector receptable having a shovel handle fixed therein. A root cutting blade is fixed to the shovel blade substantially along the longitudinal center-line and projects from the concave face of the shovel blade. A sharpened root cutting edge is defined on the root cutting blade and is oriented toward the forward cutting edge of the shovel blade. The root cutting edge of the central blade preferably defines an intermediate edge recess and forms a slightly inclined sharp edge section for enhancing root cutting action. A pair of side blades are fixed to side edge portions of the shovel blade and are oriented in diverging relation projecting from the convex face of the shovel blade.
    Type: Grant
    Filed: January 13, 2000
    Date of Patent: January 15, 2002
    Inventors: Ormond S. Douglas, William P. Killen
  • Patent number: 5830024
    Abstract: A paddle for watercraft is provided which has an elongate shaft on which is provided a handle. A blade is in fixed relation with the paddle handle and defines blade edges and opposed blade sides. A lateral force transmitting steering rib projects from one of the blade side faces and is oriented in substantially normal relation therewith. The lateral force transmitting steering rib extends from the free terminal end of the paddle blade, opposite the connection of the handle with the blade and extends along the longitudinal axis of the blade a distance of from about one-third of the length of the blade to about one-half of the length of the blade. The lateral force transmitting steering rib may extend along the entire length of the paddle blade if desired.
    Type: Grant
    Filed: July 21, 1997
    Date of Patent: November 3, 1998
    Inventors: William P. Killen, Ormond S. Douglas
  • Patent number: 5239898
    Abstract: An adjustable wrench mechanism is provided which has the capability of imparting significant clamping force to the movable jaw of the wrench mechanism. An elongate worm gear rotatably positioned within the handle structure of the wrench is manually rotatable to impart linear motion to an elongate drive rod within a drive rod passage of the wrench handle. To the drive rod is coupled a flexible elongate chain-like drive section capable of transitioning from the drive passage to an angularly oriented keyway and in such manner so as to engage within a drive receptacle of the key structure and impart significant driving force to the drive section of the key structure of the movable jaw. Fixed and movable jaws of the wrench mechanism define flat working surfaces that are slightly out of parallel and become precisely parallel as the tolerances of the movable jaw key and keyway are taken up by application of manual force.
    Type: Grant
    Filed: September 29, 1992
    Date of Patent: August 31, 1993
    Inventor: Ormond S. Douglas
  • Patent number: 4169591
    Abstract: An apparatus is provided for exercising the limbs of a person lying in a prone position, for example a patient on a hospital bed, wherein the apparatus preferably is removably attachable to the head or foot of the bed and comprises a double crank supported above the surface of the bed in a position reachable and manually rotatable by the limbs of the patient. An adjustable braking means is also provided whereby the force required to rotate the double crank is adjustable, and means for attaching the hands or feet of the patient to the double crank are also provided.
    Type: Grant
    Filed: December 5, 1977
    Date of Patent: October 2, 1979
    Inventor: Ormond S. Douglas