Patents by Inventor Thomas Alan Brosowske

Thomas Alan Brosowske 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: 9593723
    Abstract: A disconnect clutch and method of controlling the connection of a parasitic load to an engine disposed on a machine is disclosed. The disconnect clutch may comprise a flywheel assembly, a friction plate and a coupling. The flywheel assembly may include a flywheel having a cavity, a chamber, a piston moveable between a contracted position and an expanded position, a pressure plate, a lever, and a coupling operably connected to the friction plate. The flywheel may include an end plate. The chamber may be defined by the flywheel and the piston. The lever may apply an activation force to the pressure plate when the piston is in the expanded position. The friction plate may be attached to and rotatable with the flywheel assembly when the piston is in the expanded position and generally stationary when the piston is in the contracted position.
    Type: Grant
    Filed: October 6, 2014
    Date of Patent: March 14, 2017
    Assignee: Caterpillar Inc.
    Inventors: Michael Douglas Anderson, Megan Alissa Brinkmeyer, Daniel P. Sergison, Thomas Alan Brosowske, Grant Steven Peterson, Michael G. Cronin, Raymond B. Derer
  • Publication number: 20160097429
    Abstract: A disconnect clutch and method of controlling the connection of a parasitic load to an engine disposed on a machine is disclosed. The disconnect clutch may comprise a flywheel assembly, a friction plate and a coupling. The flywheel assembly may include a flywheel having a cavity, a chamber, a piston moveable between a contracted position and an expanded position, a pressure plate, a lever, and a coupling operably connected to the friction plate. The flywheel may include an end plate. The chamber may be defined by the flywheel and the piston. The lever may apply an activation force to the pressure plate when the piston is in the expanded position. The friction plate may be attached to and rotatable with the flywheel assembly when the piston is in the expanded position and generally stationary when the piston is in the contracted position.
    Type: Application
    Filed: October 6, 2014
    Publication date: April 7, 2016
    Applicant: CATERPILLAR INC.
    Inventors: Michael Douglas Anderson, Megan Alissa Brinkmeyer, Daniel P. Sergison, Thomas Alan Brosowske, Grant Steven Peterson, Michael G. Cronin, Raymond B. Derer
  • Publication number: 20130079159
    Abstract: A damped torsional coupling is utilized to couple a drive shaft to a work shaft while permitting some relative rotation due to torsional vibrations. The coupling includes a second coupler oriented to rotate with respect to a first coupler about an axis through a continuum of negative to positive torque orientations. The first coupler defines a fluted perimeter surface with a number of flutes, distributed with radial symmetry about the axis. The second coupler a number of pistons reciprocally received in respective barrels to define a variable volume chamber fluidly connected to a damping passage. A spring biases the pistons and barrels to extend toward a position in contact with one of the flutes. The contact end may be an edge of a roller that rolls on the fluted perimeter surface in one of the flutes responsive to torques transmitted between the couplers.
    Type: Application
    Filed: September 27, 2011
    Publication date: March 28, 2013
    Applicant: CATERPILLAR, INC.
    Inventor: Thomas Alan Brosowske
  • Publication number: 20130079160
    Abstract: A variable stiffness torsional coupling includes a plurality of piston and barrel combinations that each define a variable volume chamber fluidly connected to a pressure control device. An electronic controller is in control communication with the pressure control device and configured to execute a resonance avoidance algorithm to generate pressure control signals to change the rotational stiffness of the coupling.
    Type: Application
    Filed: May 18, 2012
    Publication date: March 28, 2013
    Applicant: CATERPILLAR INC.
    Inventor: Thomas Alan Brosowske
  • Patent number: 7335107
    Abstract: A torsional coupling includes a body having a circumference and defining a center axis. The body is rotatable about the center axis. The coupling also includes a ring including an inner diameter disposed about the circumference. The ring includes a ring contact surface having a first radius and the ring is configured to rotate about the center axis. A coupling element is associated with the body and is configured to apply a centrifugal force radially outwardly from the circumference of the body when the body rotates. The coupling element includes a coupling element contact surface having a second radius which is different than the first radius of the ring contact surface. The coupling element contact surface is in contact with the ring contact surface and is configured to apply a force against the ring contact surface to rotate the ring relative to the body and increase the effective stiffness of the torsional coupling as the rotational speed of the body increases.
    Type: Grant
    Filed: August 27, 2004
    Date of Patent: February 26, 2008
    Assignee: Caterpillar Inc.
    Inventor: Thomas Alan Brosowske