Patents by Inventor R. George Allen

R. George Allen 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: 4823508
    Abstract: A combined window operator and hinge having a hinge with a track mountable to a window frame for a pivotal window and an operator case also mounted to the frame in spaced relation to the track. The hinge has a shoe movable along the track and a sash arm movable relative to the shoe as well as a control arm pivotally connected between the track and the sash arm. A lever, in the form of a bell crank, is pivoted to the shoe and to the control arm and has a connection to the operator through an operator arm and a drag link whereby torque may be imparted to the control arm for facilitating opening and closing movement of the hinge and window sash associated therewith with the application of minimal force to the operator.
    Type: Grant
    Filed: November 10, 1987
    Date of Patent: April 25, 1989
    Assignee: Truth Incorporated
    Inventor: R. George Allen