Patents by Inventor Friedlinde John nee Rueffler, heiress

Friedlinde John nee Rueffler, heiress 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: 4520539
    Abstract: The invention concerns a device for individually separating heddles bunched into packs and arranged on heddle slide rails, the lifting of individual heddles from the pack being implemented by suction nozzles and the heddles being moved into position for drawing-in the associated warp threads. A blow tube is provided to generate the suction effect and is angularly bent at its front end constructed as a blow nozzle. A small tube is so inserted into the wall of the angular bend that its part within the wall of the tube forms an ejector nozzle and its external end acts as a suction nozzle to lift individual heddles off a pack. The blow nozzle may be brought into line with the direction of advance of the heddles whereby a blast of air issuing from the blow nozzle effects the further motion of a lifted heddle following the drawing-in of the warp thread.
    Type: Grant
    Filed: September 30, 1982
    Date of Patent: June 4, 1985
    Assignee: Lindauer Dornier Gesellschaft mbH
    Inventors: Heinz John, deceased, Friedlinde John nee Rueffler, heiress