Patents by Inventor Christopher D. Derham

Christopher D. Derham 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: 8182024
    Abstract: A system is disclosed for connecting a cab to a machine supporting frame. A sub-frame is secured to the machine supporting frame and is configured to tilt relative to the machine supporting frame. A plurality of vibration damping mechanisms is configured to at least partially inhibit transmission of shocks and vibrations between the sub-frame and the cab. A plurality of dead stop mechanisms is configured to limit movement between the sub-frame and the cab. A rigid connection between the machine supporting frame and the sub-frame is configured to be selectively disconnected. A pivot connection between the machine supporting frame and the sub-frame is configured to permit the sub-frame and the cab to be tilted relative to the machine supporting frame upon disconnection of the rigid connection.
    Type: Grant
    Filed: December 4, 2008
    Date of Patent: May 22, 2012
    Assignee: Caterpillar Inc.
    Inventors: Aaron R. Hayes, Christopher D. Derham, Lance M. Cowper, Ralph J. Lee
  • Publication number: 20090085377
    Abstract: A system is disclosed for connecting a cab to a machine supporting frame. A sub-frame is secured to the machine supporting frame and is configured to tilt relative to the machine supporting frame. A plurality of vibration damping mechanisms is configured to at least partially inhibit transmission of shocks and vibrations between the sub-frame and the cab. A plurality of dead stop mechanisms is configured to limit movement between the sub-frame and the cab. A rigid connection between the machine supporting frame and the sub-frame is configured to be selectively disconnected. A pivot connection between the machine supporting frame and the sub-frame is configured to permit the sub-frame and the cab to be tilted relative to the machine supporting frame upon disconnection of the rigid connection.
    Type: Application
    Filed: December 4, 2008
    Publication date: April 2, 2009
    Inventors: Aaron R. Hayes, Christopher D. Derham, Lance M. Cowper, Ralph J. Lee
  • Patent number: 7347488
    Abstract: A vehicle cab includes a floor, a roof, a front support operably coupling the floor and the roof, and at least two side supports operably coupling the floor and the roof. The vehicle cab further includes a door operably coupled to one of the at least two side supports. The door extends from adjacent the floor toward the roof. The door includes a window extending in a substantially uninterrupted manner from a lower edge of the door toward an upper edge of the door. The front support is located along a centrally-located, longitudinal axis of the vehicle cab, such that when the door is in a closed position, the door extends along a line oriented at an angle oblique with respect the longitudinal axis of the vehicle cab between the front support and the side support.
    Type: Grant
    Filed: August 31, 2005
    Date of Patent: March 25, 2008
    Assignee: Caterpillar Inc.
    Inventors: Aaron R. Hayes, Daniel J. Whiting, Christopher D. Derham, Brad R. Van De Veer
  • Publication number: 20070278811
    Abstract: A system is disclosed for operably coupling a vehicle cab to a vehicle. The system includes a damping mount configured to at least partially inhibit transmission of shocks and vibrations from the vehicle to the vehicle cab. The system further includes a mounting stud configured to operably couple the damping mount to one of the vehicle and the vehicle cab. The system further includes at least one stop member configured to limit at least one of load on the mounting stud and separation of the vehicle cab from the vehicle. The system further includes at least one fastener configured to operably couple the at least one stop member and the damping mount to the other of the vehicle and the vehicle cab.
    Type: Application
    Filed: May 31, 2006
    Publication date: December 6, 2007
    Inventors: Christopher D. Derham, Clifton R. Gerke, Aaron R. Hayes, Danny L. Weibling
  • Patent number: D579028
    Type: Grant
    Filed: February 8, 2008
    Date of Patent: October 21, 2008
    Assignee: Caterpillar Inc.
    Inventors: Brad R. VanDeVeer, Aaron R. Hayes, Christopher D. Derham, Ashley D. Menges
  • Patent number: D605207
    Type: Grant
    Filed: June 5, 2009
    Date of Patent: December 1, 2009
    Assignee: Caterpillar Inc.
    Inventors: Ashley D. Menges, Christopher D. Derham, Brad R. Vandeveer, Aaron R. Hayes