Patents by Inventor Dale Howard Fietz

Dale Howard Fietz 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).

  • Testing of concrete using existing voids within concrete
    Patent number: 8528387
    Abstract: A penetration head and related apparatuses are placed within a void to measure the in-place compressive strength of the surrounding material. An electronic load cell is attached to the penetration head and is forced against an opposite side of the void. A hydraulic ram or other device is connected between the penetration head and load cell. As the hydraulic ram pushes the penetration head and load cell in opposite directions and into the interior walls of the void, penetration depth is measured and mapped to load and material hardness is derived.
    Type: Grant
    Filed: July 19, 2011
    Date of Patent: September 10, 2013
    Inventor: Dale Howard Fietz
  • Testing of Concrete Using Existing Voids Within Concrete
    Publication number: 20130019665
    Abstract: A penetration head and related apparatuses are placed within a void to measure the in-place compressive strength of the surrounding material. An electronic load cell is attached to the penetration head and is forced against an opposite side of the void. A hydraulic ram or other device is connected between the penetration head and load cell. As the hydraulic ram pushes the penetration head and load cell in opposite directions and into the interior walls of the void, penetration depth is measured and mapped to load and material hardness is derived.
    Type: Application
    Filed: July 19, 2011
    Publication date: January 24, 2013
    Inventor: Dale Howard Fietz