Patents by Inventor Timothy R. Cooper

Timothy R. Cooper 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).

  • Oscillating mass-based tool with dual stiffness spring
    Patent number: 5848655
    Abstract: Disclosed is a low reaction oscillating mass-based torquing tool wherein an oscillating mass is excited into near resonant oscillation by reversing pulses resulting in increased energy stored in oscillation about a dual stiffness spring which develops a higher torque output with the stiffer spring action in the tightening direction and hence tightens the fastener.
    Type: Grant
    Filed: May 29, 1997
    Date of Patent: December 15, 1998
    Assignee: Ingersoll-Rand Company
    Inventors: Timothy R. Cooper, Thomas P. Low, Ronald E. Pelrine, Dale W. Ploeger
  • Resonant oscillating mass-based torquing tool
    Patent number: 5845718
    Abstract: Disclosed is a low reaction oscillating mass-based torquing tool wherein an oscillating mass is excited into near resonant oscillation by reversing pulses resulting in increased oscillation about a torsion spring to the point where the torque associated with the energy stored in the torsion spring exceeds the torque required to further tighten a fastener and the torque released from the torsion spring tightens the fastener while a biasing torque assures application of the released torque in the tightening direction only.
    Type: Grant
    Filed: May 29, 1997
    Date of Patent: December 8, 1998
    Assignee: Ingersoll-Rand Company
    Inventors: Timothy R. Cooper, Thomas P. Low
  • Parallel displacement single axis vibration isolator
    Patent number: 5769174
    Abstract: Disclosed is a vibration isolator which is comprised of parallel flexible beams of rectangular cross sections connected between parallel mounting plates to permit parallel translation of the mounting plates in substantially one parallel direction only thereby permitting the vibration absorber to absorb relative induced motion or vibration in one preferred direction only while retaining relative stiffness for control in the remaining two coordinate directions as well as restraining torsional twist.
    Type: Grant
    Filed: December 18, 1996
    Date of Patent: June 23, 1998
    Assignee: Ingersoll-Rand Company
    Inventors: Jyeching R. Lee, Timothy R. Cooper
  • Multistage differential gear package
    Patent number: 5376057
    Abstract: A gear set is provided having a plurality of two-stage intermediate gears which do not require indexing on assembly or reassembly of the gear train. This is provided by aligning the two-stage gear teeth in axial alignment tooth for tooth between the stage while maintaining an appropriate number of teeth on the input and output gears.
    Type: Grant
    Filed: July 8, 1993
    Date of Patent: December 27, 1994
    Assignee: Ingersoll-Rand Company
    Inventors: Timothy R. Cooper, Scott A. Delozier