Patents by Inventor Michael L. Dombroski

Michael L. Dombroski 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: 5497151
    Abstract: A compact keyboard has a plurality of pairs of individually movable side by side keys, each pair of which is on opposite sides of a vertical plane lying between such keys. All of the keys are operable by the fingers of one hand of a person and the keys of the compact keyboard correspond in number to the number of keys of a conventional QWERTY keyboard. The keys of the compact keyboard operable by the fingers of a person's left hand alternate with the keys operable by the person's right hand.
    Type: Grant
    Filed: May 16, 1994
    Date of Patent: March 5, 1996
    Inventor: Michael L. Dombroski
  • Patent number: 5329278
    Abstract: A computer keyboard includes a plurality of pairs of side by side keys, each pair of which is on opposite sides of a vertical plane lying between such keys. The keys are mounted for pivotal movement about respective first and second axes. The first key is located at one side of the plane and its pivotal axis is on the opposite side of such plane. The second key is located on the same side of the plane as the first axis and has its pivotal axis on the same side of the plane as the first key. The spacing between the axes is such that the keys have maximum vertical travel and minimal lateral travel. The keys have faces that are inclined toward the plane to form an upwardly concave pocket between the keys for the accommodation of a user's finger. A switch is activated by the first key and another switch is activated by the second key.
    Type: Grant
    Filed: October 24, 1991
    Date of Patent: July 12, 1994
    Inventor: Michael L. Dombroski