Patents by Inventor Dusan Dubovsky

Dusan Dubovsky 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: 4305541
    Abstract: An electronically operated portable nail driving gun is disclosed. Nails are driven into a workpiece by a driver blade which is actuated by a solenoid powered by a source of alternating current. Each actuation of the device produces two successive driving strokes delivered to a nail. The tool is also provideed with means for preventing more than one nail being driven during each actuation of the tool. A preferred embodiment in which the tool is double insulated is also disclosed as are control circuits which permit operation at either 110 V. or 220 V.
    Type: Grant
    Filed: October 1, 1979
    Date of Patent: December 15, 1981
    Assignee: Swingline Inc.
    Inventors: Edward E. Barrett, Dusan Dubovsky, Steven Hahn, Albert Lensky, Morris Pinczewski