Patents by Inventor Lawrence K. Rose

Lawrence K. Rose 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).

  • Method and apparatus for finishing concrete
    Publication number: 20090274517
    Abstract: A power trowel is provided for finishing concrete. The trowel can be used to finish concrete at different stages of hardening. The handle of the trowel is rotated both to adjust the speed of rotation of the trowel blades and to administer a spray solution to the surface of concrete being finished with the trowel. The trowel includes dual rotating hubs with blades attached to and extending outwardly from each hub. The surface areas covered by the blades on one hub overlaps the surface area covered by the blades on the other hub. Each hub rotates in the same direction and non-synchronously with the other hub.
    Type: Application
    Filed: January 14, 2009
    Publication date: November 5, 2009
    Inventor: Lawrence K. Rose
  • Apparatus for finishing concrete
    Patent number: 7427175
    Abstract: A power trowel is provided for finishing concrete. The trowel can be used to finish concrete at different stages of hardening. The handle of the trowel is rotated both to adjust the speed of rotation of the trowel blades and the cant of the trowel blades.
    Type: Grant
    Filed: February 11, 2005
    Date of Patent: September 23, 2008
    Inventor: Lawrence K. Rose
  • Method and apparatus for finishing concrete
    Publication number: 20080219765
    Abstract: A power trowel is provided for finishing concrete. The trowel can be used to finish concrete at different stages of hardening. The handle of the trowel is rotated both to adjust the speed of rotation of the trowel blades and the cant of the trowel blades.
    Type: Application
    Filed: December 12, 2007
    Publication date: September 11, 2008
    Inventor: Lawrence K. Rose
  • APPARATUS FOR FINISHING CONCRETE
    Publication number: 20080193216
    Abstract: A power trowel is provided for finishing concrete. The trowel can be used to finish concrete at different stages of hardening. The handle of the trowel is rotated both to adjust the speed of rotation of the trowel blades and the cant of the trowel blades.
    Type: Application
    Filed: February 11, 2005
    Publication date: August 14, 2008
    Inventor: Lawrence K. Rose
  • Method and apparatus for finishing concrete
    Patent number: 6860675
    Abstract: A power trowel is provided for finishing concrete. The trowel can be used to finish concrete at different stages of hardening. The handle of the trowel is rotated both to adjust the speed of rotation of the trowel blades and the cant of the trowel blades.
    Type: Grant
    Filed: December 10, 2002
    Date of Patent: March 1, 2005
    Inventor: Lawrence K. Rose
  • Method and apparatus for finishing concrete
    Publication number: 20040109728
    Abstract: A power trowel is provided for finishing concrete. The trowel can be used to finish concrete at different stages of hardening. The handle of the trowel is rotated both to adjust the speed of rotation of the trowel blades and the cant of the trowel blades.
    Type: Application
    Filed: December 10, 2002
    Publication date: June 10, 2004
    Inventor: Lawrence K. Rose
  • Method for finishing concrete
    Patent number: 4740348
    Abstract: An improved method and apparatus for finishing freshly poured concrete. The method includes floating a power trowel on the liquid-particulate surface of freshly poured concrete to produce a smooth, level surface finish prior to the concrete's hardening sufficiently to support the weight of an individual.
    Type: Grant
    Filed: December 22, 1986
    Date of Patent: April 26, 1988
    Inventor: Lawrence K. Rose