Patents by Inventor Klaus Berktold

Klaus Berktold 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: 5568826
    Abstract: Terry cloth is woven by determining the pile warp yarn consumption during partial and full beat-ups of the pile warp on the basis of reference pattern data established for the terry cloth that is to be woven and which is used to control the payout of pile warp several picks in advance of the pick when a given length of pile warp yarn is actually needed. A feed-back arrangement compares the required length of pile warp for any given beat-up with the length of pile warp actually paid out and makes adjustments to the pile warp payout mechanism to compensate for any differences between them. As the length of pile warp yarn between a supply thereof and the fell in the weaving machine varies, due to differences between the instantaneous rates of yarn payout and consumption and/or other factors, a compensating roller in engagement with the pile warp yarn keeps its tension constant to assure the weaving of correctly sized terry loops.
    Type: Grant
    Filed: May 5, 1995
    Date of Patent: October 29, 1996
    Assignee: Sulzer Rueti AG
    Inventors: Rudolf Vogel, Klaus Berktold, Husnu Evren
  • Patent number: 5341851
    Abstract: A loom with two or more sectional warp beam, each associated with a measuring device for detecting the length of at least one of the warp threads, which runs off the sectional beam in question during a given advance of warp thread. Each measuring device has a measuring roller which is urged against a number of warp threads, e.g., against the circumference of the wound sectional warp beam and which is driven by them during the advance of warp thread, so that it is able to transmit a corresponding control signal to a control equipment. The control equipment regulates the r.p.m. of the sectional warp beams in dependence upon these control signals in the sense of keeping constant the predetermined length of any given warp thread advance. The invention is particularly useful for weaving off sectional warp beams having different winding diameters for assuring a homogeneous appearance of the weave across its entire width.
    Type: Grant
    Filed: June 4, 1993
    Date of Patent: August 30, 1994
    Assignee: Sulzer Reuti AG
    Inventors: Klaus Berktold, Ernst Eberhard
  • Patent number: 5335698
    Abstract: A method of restarting a loom after an interruption in the weaving process. A cloth fell (15) is moved from an operative or beating position (15) to a second position (15') away from a sley (4). The weft yarn is prevented from being fed into a shed (20) and the loom is then driven in a idling motion for a number of weaving cycles. A shed forming motion 3 and at least one of the warp let-off motion 10 and the cloth take-up motion 12 are driven independently of the predetermined weaving program. When the loom has reached its original dynamic operative state and the warp threads are at the original operative tension, the cloth fell is advanced to the beating position of the sley and the loom is restarted according to the predetermined weaving program. This method prevents visible points of start from occurring in the fabric because of the interruption in the weaving process.
    Type: Grant
    Filed: April 20, 1993
    Date of Patent: August 9, 1994
    Assignee: Sulzer Rueti AG
    Inventors: Klaus Berktold, Kurt Gunther, Anton Egloff