Patents by Inventor Robert Willem Plink

Robert Willem Plink 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).

  • Skimmer device
    Patent number: 9447593
    Abstract: A skimmer device for removal of debris and other contaminants from the surface of a body of liquid; said device including a central debris and contaminant collection element supported by outrigger buoyancy elements; said buoyancy elements ballasted by controlled charging of each of said elements with a volume of ballast liquid, and wherein an adjustment of buoyancy is provided by varying a volume of residual air retained in said buoyancy elements.
    Type: Grant
    Filed: April 9, 2013
    Date of Patent: September 20, 2016
    Inventors: Max Ronald Plink, Robert Willem Plink
  • SKIMMER DEVICE
    Publication number: 20140305878
    Abstract: A skimmer device for removal of debris and other contaminants from the surface of a body of liquid; said device including a central debris and contaminant collection element supported by outrigger buoyancy elements; said buoyancy elements ballasted by controlled charging of each of said elements with a volume of ballast liquid, and wherein an adjustment of buoyancy is provided by varying a volume of residual air retained in said buoyancy elements.
    Type: Application
    Filed: April 9, 2013
    Publication date: October 16, 2014
    Inventors: Max Ronald PLINK, Robert Willem Plink