Patents by Inventor Randolph Crowson

Randolph Crowson 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).

  • Robust low profile shaker
    Publication number: 20080034876
    Abstract: An electrodynamic shaker apparatus is disclosed for providing shaking and/or vibrational motion. The shaker includes armature and stator assemblies as well as a distributed spring assembly. The shaker apparatus of the present invention is robust, supports increased off-center loads, and has a low profile such that it may be easily placed under an item of furniture in order to impart vibrational motion in response to electrical signals from a variety of sources.
    Type: Application
    Filed: October 11, 2007
    Publication date: February 14, 2008
    Inventor: Randolph Crowson
  • Robust low profile shaker
    Publication number: 20060243052
    Abstract: An electrodynamic shaker apparatus is disclosed for providing shaking and/or vibrational motion. The shaker includes armature and stator assemblies as well as a distributed spring assembly. The shaker apparatus of the present invention is robust, supports increased off-center loads, and has a low profile such that it may be easily placed under an item of furniture in order to impart vibrational motion in response to electrical signals from a variety of sources.
    Type: Application
    Filed: June 29, 2006
    Publication date: November 2, 2006
    Inventor: Randolph Crowson
  • Robust low profile shaker
    Publication number: 20050066737
    Abstract: An electrodynamic shaker apparatus is disclosed for providing shaking and/or vibrational motion. The shaker includes armature and stator assemblies as well as a distributed spring assembly. The shaker apparatus of the present invention is robust, supports increased off-center loads, and has a low profile such that it may be easily placed under an item of furniture in order to impart vibrational motion in response to electrical signals from a variety of sources.
    Type: Application
    Filed: September 29, 2003
    Publication date: March 31, 2005
    Inventor: Randolph Crowson