Patents by Inventor Ralph Koerner

Ralph Koerner 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).

  • Publication number: 20070221108
    Abstract: A frame is provided for mounting a fabric layer stack and retaining it in a substantially taut condition. The frame is supported for manually guided movement beneath a fixedly located stitch head and a detector is provided to produce signals representing the magnitude of frame translation, and thus the magnitude of stack translation. The detector signals are applied to control circuitry to actuate the stitch head at a rate related to stack translation speed. The frame is supported by bearings; wheels, slides, etc, which permit the frame to be freely manually guided across a frame supporting surface beneath the stitch head.
    Type: Application
    Filed: April 26, 2005
    Publication date: September 27, 2007
    Inventor: Ralph Koerner
  • Publication number: 20060213413
    Abstract: A method and apparatus for producing uniform stitches in a stack of fabric layers while allowing a user to manually guide the stack across a planar surface beneath a stitch head. Stitch head actuation is controlled as a function of the rate of thread payout.
    Type: Application
    Filed: May 31, 2006
    Publication date: September 28, 2006
    Inventor: Ralph Koerner
  • Publication number: 20050016428
    Abstract: A quilting apparatus for enabling a user to freely move a stack of fabric layers across a planar bed relative to an actuatable stitch head. The apparatus includes a motion detector which detects the movement of the stack and controls the actuation of the stitch head. Consequently, the apparatus functions to synchronize the delivery of stitch strokes by the head with the manually controlled movement of the quilt material stack. This frees the user to move the stack over a wide range of speeds, to start or stop movement at will, and to guide the stack in any direction across the planar bed.
    Type: Application
    Filed: February 11, 2004
    Publication date: January 27, 2005
    Inventor: Ralph Koerner