Patents by Inventor Joost Werner Jansz

Joost Werner Jansz 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).

  • Piledriving
    Patent number: 3975918
    Abstract: Noise radiated into the atmosphere from a pile during pile-driving is inhibited by a tubular cover of flexible material having internal dimensions sufficient to pass, with an intervening air space, over a pile to be driven and an extended length sufficient to enclose a pile over its entire length, said cover being suspended from a hammer driving unit or a pile cap and being axially collapsible to reduce its length as the hammer driving unit or pile cap moves downwards while a pile enclosed in the cover is being driven into the ground.
    Type: Grant
    Filed: March 28, 1975
    Date of Patent: August 24, 1976
    Assignee: Hollandsche Beton Groep N.V.
    Inventor: Joost Werner Jansz