Patents by Inventor Leonid Kraskov

Leonid Kraskov 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).

  • Publication number: 20190234082
    Abstract: A plaster extruder application device includes a plaster extruder which has an end portion of a container and a plaster applicator. The end portion is adapted to contain flowable plaster compound and includes a body adapted to form the end of the container and a first set of apertures extending through the body. The end portion is also gated by at least a one-way valve which allows the compound to be drawn through the first set of apertures into the cylindrical body and therefore into the container adapted to be engaged thereto, allowing intake of compound into the container but preventing egress of the compound from the container through the first set of apertures.
    Type: Application
    Filed: September 28, 2017
    Publication date: August 1, 2019
    Inventor: Leonid Kraskov
  • Patent number: 10087640
    Abstract: Described is a trowel having wings made from a pentagonal blank of stainless steel sheet that is typically 1.2 mm thick and bent about its central minor axis to include an angle theta of 105 degrees. The end of each wing has a peak at its outermost lateral extremity relative to the central axis. The part of the wing between the peaks and a working edge is bent toward the front of the trowel and, in use, is oriented toward the drywall panels. An elevated trailing edge of each wing has a narrow flange, respectively, which again points frontward and, in use, toward the panels. The flanges have radiused ends for smoothing the edges of the compound.
    Type: Grant
    Filed: February 19, 2016
    Date of Patent: October 2, 2018
    Inventor: Leonid Kraskov
  • Publication number: 20160244983
    Abstract: Described is a trowel having wings made from a pentagonal blank of stainless steel sheet that is typically 1.2 mm thick and bent about its central minor axis to include an angle theta of 105 degrees. The end of each wing has a peak at its outermost lateral extremity relative to the central axis. The part of the wing between the peaks and a working edge is bent toward the front of the trowel and, in use, is oriented toward the drywall panels. An elevated trailing edge of each wing has a narrow flange, respectively, which again points frontward and, in use, toward the panels. The flanges have radiused ends for smoothing the edges of the compound.
    Type: Application
    Filed: February 19, 2016
    Publication date: August 25, 2016
    Inventor: Leonid Kraskov
  • Patent number: D572734
    Type: Grant
    Filed: May 30, 2006
    Date of Patent: July 8, 2008
    Inventor: Leonid Kraskov