Patents by Inventor Boris Shifrin

Boris Shifrin 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).

  • METHOD AND APPARATUS FOR PRINTING SMALL ASPECT FEATURES
    Publication number: 20150090134
    Abstract: A method of stencil printing small aspect features includes performing a stencil print stroke across a stencil having at least one small aspect opening with a stencil printer having a squeegee blade, and venting an area below the at least one small aspect opening. Another method includes performing a stencil print stroke across a stencil having at least one small aspect opening with a stencil printer having a multi-blade squeegee, and venting an area below the at least one small aspect opening. A stencil printer includes a stencil having apertures formed therein, and a print head positioned over the stencil and configured to deposit viscous material within the apertures of the stencil. The print head includes a support, a first pair of blades secured to the support, and a second pair of blades secured to the support.
    Type: Application
    Filed: September 30, 2013
    Publication date: April 2, 2015
    Applicant: Illinois Tool Works Inc.
    Inventors: Zhuoyun Li, Boris Shifrin, John George Klauser, Aditya Ajit Kulkarni