Patents by Inventor Herbert Schaffarzyk

Herbert Schaffarzyk 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).

  • Scraping device for making a subgrade
    Patent number: 4995760
    Abstract: Scraping device for removing excess subgrade material from the surface of a subgrade to level the subgrade, which includes a lower wall, side walls, a rear wall and an optional top wall defining a container for collecting removed excess subgrade material, and attachment means so the device may be lifted and transported by a fork lift truck or the bucket of an earth moving vehicle for emptying; advantageously the apparatus is formed in sections which can be disassembled and stacked one within another.
    Type: Grant
    Filed: December 20, 1989
    Date of Patent: February 26, 1991
    Inventors: Martin Probst, Herbert Schaffarzyk, Walter Schaffarzyk
  • Scraping device for making a subgrade
    Patent number: 4895477
    Abstract: Scraping device for removing excess subgrade material from the surface of a subgrade to level the subgrade, which includes a lower wall, side walls, a rear wall and an optional top wall defining a container for collecting removed excess subgrade material, and attachment means so the device may be lifted and transported by a fork lift truck or the bucket of an earth moving vehicle for emptying; advantageously the apparatus is formed in sections which can be disassemabled and stacked one within another.
    Type: Grant
    Filed: March 11, 1988
    Date of Patent: January 23, 1990
    Inventors: Martin Probst, Herbert Schaffarzyk, Walter Schaffarzyk