Patents by Inventor Paul Copoulos

Paul Copoulos 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).

  • Apparatus and method for surface finishing cured concrete
    Patent number: 7775741
    Abstract: A method and apparatus for finishing cured concrete floors using a riding trowel to which large diameter pans are rotationally secured, the pans having abraders releasably secured to their undersides. The individual abraders are preferably individually removably secured to the pans by hook-and-loop fasteners, wherein the fasteners are selectively disposed on the flat bottom surfaces of the pans or within shallow depressions in the bottom surfaces of the pans. The riding trowel further comprises a vacuum system in fluid communication with a contained space formed by a shroud having a rigid upper portion and a flexible lower portion where it contacts the finished cured concrete floor surface.
    Type: Grant
    Filed: March 25, 2009
    Date of Patent: August 17, 2010
    Inventor: Paul Copoulos
  • APPARATUS AND METHOD FOR SURFACE FINISHING CURED CONCRETE
    Publication number: 20090190999
    Abstract: A method and apparatus for finishing cured concrete floors using a riding trowel to which large diameter pans are rotationally secured, the pans having abraders releasably secured to their undersides. The individual abraders are preferably individually removably secured to the pans by hook-and-loop fasteners, wherein the fasteners are selectively disposed on the flat bottom surfaces of the pans or within shallow depressions in the bottom surfaces of the pans. The riding trowel further comprises a vacuum system in fluid communication with a contained space formed by a shroud having a rigid upper portion and a flexible lower portion where it contacts the finished cured concrete floor surface.
    Type: Application
    Filed: March 25, 2009
    Publication date: July 30, 2009
    Inventor: Paul Copoulos
  • METHODS AND APPARATUSES FOR SURFACE FINISHING CURED CONCRETE
    Publication number: 20090156099
    Abstract: A method and apparatus for finishing cured concrete floors using a riding trowel to which large diameter pans are attached having a balanced distribution of abraders releasably secured to the undersides of the pans. The individual abraders are preferably individually spring biased so as to maintain full contact with the floor when traversing undulations of the floor.
    Type: Application
    Filed: February 13, 2009
    Publication date: June 18, 2009
    Inventor: Paul Copoulos
  • Methods and apparatuses for surface finishing cured concrete
    Patent number: 7530762
    Abstract: A method and apparatus for finishing cured concrete floors using a riding trowel to which large diameter pans are attached having a balanced distribution of abraders releasably secured to the undersides of the pans. The individual abraders are preferably individually spring biased so as to maintain full contact with the floor when traversing undulations of the floor.
    Type: Grant
    Filed: May 21, 2007
    Date of Patent: May 12, 2009
    Inventors: Johnny Reed, Paul Copoulos
  • Methods and apparatuses for surface finishing cured concrete
    Publication number: 20070292207
    Abstract: A method and apparatus for finishing cured concrete floors using a riding trowel to which large diameter pans are attached having a balanced distribution of abraders releasably secured to the undersides of the pans. The individual abraders are preferably individually spring biased so as to maintain full contact with the floor when traversing undulations of the floor.
    Type: Application
    Filed: May 21, 2007
    Publication date: December 20, 2007
    Inventors: Johnny Reed, Paul Copoulos