Patents by Inventor Evan Schaefer

Evan Schaefer 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).

  • System and method of calibrating a multi-toolhead machine
    Patent number: 6601434
    Abstract: A calibration system and method for a multi-toolhead machine. A calibration device is installed onto the machine. When a first toolhead is calibrated with respect to the calibration device, based upon the change in position between the first toolhead and a predetermined reference on the calibration device, all of the remaining toolheads are automatically calibrated. The system is set up by calibrating each toolhead with respect to the calibration device and determining an offset between the calibrated position of each toolhead and the calibration of the first toolhead.
    Type: Grant
    Filed: September 17, 2002
    Date of Patent: August 5, 2003
    Assignee: Thermwood Corporation
    Inventor: Evan Schaefer
  • System and method of calibrating a multi-toolhead machine
    Publication number: 20030037588
    Abstract: A calibration system and method for a multi-toolhead machine. A calibration device is installed onto the machine. When a first toolhead is calibrated with respect to the calibration device, based upon the change in position between the first toolhead and a predetermined reference on the calibration device, all of the remaining toolheads are automatically calibrated. The system is set up by calibrating each toolhead with respect to the calibration device and determining an offset between the calibrated position of each toolhead and the calibration of the first toolhead.
    Type: Application
    Filed: September 17, 2002
    Publication date: February 27, 2003
    Inventor: Evan Schaefer