Patents by Inventor Yigal Cidon

Yigal Cidon 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).

  • Cross-head die with volumetric flow compensation means
    Patent number: 4171195
    Abstract: A cross-head die in which the manifold is provided with means for selectively varying the volume of the manifold at some locations relative to other locations, whereby the relative wall thickness about the annular configuration of the material flowing through the die is selectively adjusted about the periphery of the annular configuration of flowing material. Wall thickness and configuration are further controlled at the outlet orifice of the die by means movable to selectively expand, contract and alter the annular configuration of the die passage at the orifice.
    Type: Grant
    Filed: November 17, 1977
    Date of Patent: October 16, 1979
    Assignee: Scientific Process & Research, Inc.
    Inventors: Reuben Klein, Imrich Klein, Yigal Cidon