Patents by Inventor Ronald E. Bergman

Ronald E. Bergman 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: 5269082
    Abstract: The present invention provides a hand held, readily portable power sweeping tool. The tool includes an elongate boom having a power generation means disposed at one end thereof and a power sweeping means disposed at the other end. Power transmission means extends between the power generation means and the power sweeping means for transmitting power generated by the power generation means to the sweeping means. The sweeping means comprises a pair of drums mounted for rotation by the power transmission means, the drums including a plurality of pliant fins extending radially outwardly therefrom. In one embodiment of the invention, the sweeping means includes a support formed by mating two substantially identical drum members to each other end-to-end to form a support for a sweeper belt having a plurality of outwardly directed pliant fins.
    Type: Grant
    Filed: May 13, 1992
    Date of Patent: December 14, 1993
    Assignee: Powrebroom, Inc.
    Inventors: Lloyd P. Sund, Paul G. Sund, Ronald E. Bergman
  • Patent number: 5161318
    Abstract: The present invention provides a hand held, readily portable power sweeping tool. The tool includes an elongate boom having a power generation means disposed at one end thereof and a power sweeping means disposed at the other end. Power transmission means extends between the power generation means and the power sweeping means for transmitting power generated by the power generation means to the sweeping means. The sweeping means comprises a pair of drums mounted for rotation by the power transmission means, the drums including a plurality of pliant fins extending radially outwardly therefrom.
    Type: Grant
    Filed: July 12, 1991
    Date of Patent: November 10, 1992
    Inventors: Ronald E. Bergman, Paul G. Sund