Patents by Inventor Stephen B. Demick

Stephen B. Demick 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: 5026101
    Abstract: An improved door knob/handle mechanism is described which opens, i.e. unlatches, the door through the mechanism of pushing, pulling or twisting the door knob/handle. When the door panel is to be opened in a direction so as to swing-away from the user, the door is opened either by pushing on the knob/handle, or twisting it. When the door panel is to open in a direction by swinging towards the user, the door is opened either by pulling the knob/handle or twisting it. The improved mechanism facilitates the opening of a door by those individuals who may be handicapped, suffer from arthritis, or have their hands filled while attempting to open the door, either inwardly, or outwardly.
    Type: Grant
    Filed: April 27, 1990
    Date of Patent: June 25, 1991
    Inventors: John E. Dotterweich, Stephen B. Demick