Patents by Inventor Yehuda Zalk

Yehuda Zalk 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).

  • Sodium metasilicate based cleaning solutions
    Patent number: 8324146
    Abstract: A cleaning solution used for cleaning oils and polluted industrial parts and a method for preparing cleaning solutions are disclosed. The cleaning solutions include (a) 1.0-5.5 wt-% alkali metasilicate agent, (b) 1.0-20.0 wt-% surface active agent, (c) 7.0-15.0 wt-% organic solvent, and (d) water. A method for preparing cleaning solutions includes the steps of (a) dissolving 1.0-8.0 wt-% alkali metasilicate powder in water forming a first solution, (b) dissolving 1.0-6.0 wt-% surface active agent and 7.0-20.0 wt-% organic solvent in a second solution, and (c) mixing the first and second solutions forming the cleaning solution.
    Type: Grant
    Filed: August 30, 2011
    Date of Patent: December 4, 2012
    Inventor: Yehuda Zalk
  • SODIUM METASILICATE BASED CLEANING SOLUTIONS
    Publication number: 20120142574
    Abstract: A cleaning solution used for cleaning oils and polluted industrial parts and a method for preparing cleaning solutions are disclosed. The cleaning solutions include (a) 1.0-5.5 wt-% alkali metasilicate agent, (b) 1.0-20.0 wt-% surface active agent, (c) 7.0-15.0 wt-% organic solvent, and (d) water. A method for preparing cleaning solutions includes the steps of (a) dissolving 1.0-8.0 wt-% alkali metasilicate powder in water forming a first solution, (b) dissolving 1.0-6.0 wt-% surface active agent and 7.0-20.0 wt-% organic solvent in a second solution, and (c) mixing the first and second solutions forming the cleaning solution.
    Type: Application
    Filed: August 30, 2011
    Publication date: June 7, 2012
    Inventor: Yehuda ZALK