Patents by Inventor John H. Lucas

John H. Lucas 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).

  • Electromagnetic vibration generators
    Patent number: 5351545
    Abstract: An armature for an electromagnetic vibration generator is suspended at its periphery by a plurality of circumferentially spaced flexure members each connected to the vibrator stator by means of an anchoring bracket having a floating part connected to the outer end of the flexure member and a stationary part connected to the stator. The brackets are provided with recesses in each of which is located a resilient member of elongate form. The recesses have closed ends so as to reduce the tendency of the material of the resilient members to migrate during operation of the vibration generator as well as to provide rotational stiffness for the complete armature suspension assembly.
    Type: Grant
    Filed: March 23, 1992
    Date of Patent: October 4, 1994
    Assignee: Ling Dynamic Systems Ltd.
    Inventor: John H. Lucas
  • Knob attachment for a firearm bolt handle
    Patent number: D642652
    Type: Grant
    Filed: October 13, 2010
    Date of Patent: August 2, 2011
    Assignee: Kinetic Research Group, Ltd.
    Inventors: Justin R. Juarez, Vince T. Juarez, John H. Lucas