Patents by Inventor David Dewing

David Dewing 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: 9243414
    Abstract: The swimming pool cleaner of the invention is a suction device comprising a rectangular housing, at least four wheels enabling the device to be manually rolled along the swimming pool bottom with the long sides perpendicular to the direction of motion, and two cylindrical rotary brushes adjacent and parallel to opposing long sides of the housing and driven by rotation of the device wheels. Tree leaves and other debris are effectively captured due to a downward sweeping action produced by rotation of the cylindrical rotary brush on the leading edge as the cleaning device, connected to a suction means, is rolled back and forth over the swimming pool bottom by an operator pulling and pushing on a pole attached to the top of the housing. The performance of the device is enhanced via fenders that wrap around the tops of the rotary brushes, and inclusion of various housing bottom features.
    Type: Grant
    Filed: May 29, 2009
    Date of Patent: January 26, 2016
    Inventor: David Dewing
  • Publication number: 20120144605
    Abstract: The pool cleaning device of the invention has a housing bottom with an elliptically-beveled suction hole inlet and optional topographical features that facilitate smooth flow of water to and into the suction hole so as to improve capture of tree leaves and other debris. The optional topographical features include a sloped bottom along the leading edge to minimize the possibility of debris catching on the outer edge of the housing bottom, a bottom suction cavity with or without partitions designed to direct debris toward the elliptically-beveled suction hole inlet, and a fender that partially wraps around a cylindrical rotary brush along the leading edge of the housing.
    Type: Application
    Filed: December 22, 2011
    Publication date: June 14, 2012
    Inventor: David Dewings
  • Publication number: 20100299863
    Abstract: The swimming pool cleaner of the invention is a suction device comprising a rectangular housing, at least four wheels enabling the device to be manually rolled along the swimming pool bottom with the long sides perpendicular to the direction of motion, and two cylindrical rotary brushes adjacent and parallel to opposing long sides of the housing and driven by rotation of the device wheels. Tree leaves and other debris are effectively captured due to a downward sweeping action produced by rotation of the cylindrical rotary brush on the leading edge as the cleaning device, connected to a suction means, is rolled back and forth over the swimming pool bottom by an operator pulling and pushing on a pole attached to the top of the housing. The performance of the device is enhanced via fenders that wrap around the tops of the rotary brushes, and inclusion of various housing bottom features.
    Type: Application
    Filed: May 29, 2009
    Publication date: December 2, 2010
    Inventor: David Dewing