Patents by Inventor Jackie W. D. Robbins

Jackie W. D. Robbins 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: 4430020
    Abstract: A drip irrigation hose which is characterized by a tubular hose member having a major or primary channel or conduit and a secondary regulatory conduit or channel plate laminated between the lapped edge portions of the major channel with one edge of the secondary conduit plate communicating with the interior of the primary conduit and the liquid supply therein, and the opposite edge of the secondary conduit plate communicating with the surrounding. The secondary conduit plate can be shaped from an elongated strip of resilient film or sheeting and includes interior fluid flow paths in a sequenced, repetitive configuration which communicate with the high pressure liquid supply in the major or primary channel and with discharge openings provided in spaced relationship in the secondary conduit plate.
    Type: Grant
    Filed: September 29, 1982
    Date of Patent: February 7, 1984
    Inventor: Jackie W. D. Robbins