Patents by Inventor Brian F. Preddey

Brian F. Preddey 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).

  • Cylinder locks and keys therefor
    Patent number: 4498327
    Abstract: A method of forming a key including providing a key blank of V-shaped transverse cross section so as to have two blade portions joined by a base portion. The method further includes forming teeth on the blade portions and then bending the blank to a substantially U-shaped transverse cross section.
    Type: Grant
    Filed: March 29, 1982
    Date of Patent: February 12, 1985
    Assignee: Taboola Pty. Ltd.
    Inventors: Brian F. Preddey, Laurence P. Mills
  • Cylinder lock
    Patent number: 4478061
    Abstract: A cylinder lock having a generally cylindrical barrel with a barrel body within which are slidably located a plurality of locking pins which intersect the keyway in the cylinder lock to thereby engage a key located in the keyway. The locking pins are arranged in two sets which extend generally longitudinally of the body with the locking pins secured within the body to prevent rotation about the axis of movement of the pins.
    Type: Grant
    Filed: March 29, 1982
    Date of Patent: October 23, 1984
    Assignee: Taboola Pty. Limited
    Inventor: Brian F. Preddey