Patents by Inventor Doug Playter

Doug Playter 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).

  • Patent number: 5927903
    Abstract: A first aspect of the present invention is an energy dissipating dolphin including a plurality of elongate piles in a body of water extending substantially vertically from a bed underlying the body of water. Each pile has a proximal end driven sufficiently deep into the bed to be substantially fixed against horizontal movement and pivoting at the proximal end about a lengthwise axis upon application of a horizontal load. A plate has a hole corresponding to each distal end of a pile, the hole having a diameter sufficient to actually receive a corresponding distal end of a pile while allowing for rotation and translation of the distal end of the pile relative to the plate. A connector connects the plate and the piles.
    Type: Grant
    Filed: September 11, 1997
    Date of Patent: July 27, 1999
    Assignee: CH2M Hill, Inc.
    Inventor: Doug Playter