Patents by Inventor Charles Karcher

Charles Karcher 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).

  • Weft thread conveying apparatus for shuttleless weaving machines
    Patent number: 4167954
    Abstract: A weft thread conveying apparatus having at least one pair of weft thread conveying rollers with each roller having two conical shaped peripheral portions inclined to each other and extending upward from the roller edge towards the middle thereof and means for tilting one of the rollers to selectively engage a weft thread positioned between corresponding peripheral portions of the rollers.
    Type: Grant
    Filed: July 25, 1977
    Date of Patent: September 18, 1979
    Assignee: Ruti Machinery Works Ltd.
    Inventor: Charles Karcher
  • Device for fluid insertion of the filling thread on a loom
    Patent number: 3976107
    Abstract: A device for improving fluid insertion of a filling thread on a loom, which device has a reciprocal pump for supplying fluid to a filling thread insertion nozzle with the plunger of the pump operatively connected to a driven cam through a spring biased transmission mechanism with means to vary the length of the stroke of the pump and the transmission mechanism being biased against the cam during the suction stroke.
    Type: Grant
    Filed: April 1, 1975
    Date of Patent: August 24, 1976
    Assignee: Ruti Machinery Works Ltd.
    Inventor: Charles Karcher