Patents by Inventor Richard H. Purvis

Richard H. Purvis 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).

  • Fertilization grate and trough system
    Patent number: 7784217
    Abstract: Disclosed is a fertilization system that finds particular use within a paved surface. The invention allows the root structure of a plant or tree to be hydrated and fertilized by way of an expansible and configurable trough and grate assembly. The trough includes a number of different components that fit together with a tongue and groove interconnection. The trough includes drainage apertures that allow water to run through the grate and into an associated fertilization pit.
    Type: Grant
    Filed: September 13, 2007
    Date of Patent: August 31, 2010
    Assignee: U.S. Foundry & Mfg. Corp.
    Inventors: Adam San Solo, Rhonda Gracie, Richard H. Purvis
  • Fertilization grate and trough system
    Publication number: 20090071070
    Abstract: Disclosed is a fertilization system that finds particular use within a paved surface. The invention allows the root structure of a plant or tree to be hydrated and fertilized by way of an expansible and configurable trough and grate assembly. The trough includes a number of different components that fit together with a tongue and groove interconnection. The trough includes drainage apertures that allow water to run through the grate and into an associated fertilization pit.
    Type: Application
    Filed: September 13, 2007
    Publication date: March 19, 2009
    Inventors: Adam San Solo, Rhonda Gracie, Richard H. Purvis