Patents by Inventor Darrell Driskill

Darrell Driskill 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: 4801167
    Abstract: A fishing assembly for use in retrieving a separated or broken sucker rod from a well comprising a body member having a cavity in which a slide member is disposed therein for reciprocation within the body member. An entrance port is formed in the lower end of the body member so as to openly communicate with the cavity, and an elongated, longitudinally slot is formed in one side portion of the body member. A substantially arcuate-shaped internally disposed shoulder is supported by the body member substantially adjacent the entrance port so as to be opposite and in a facing relationship with the longitudinally extending slot of the body member. The slide member is connected to the body member via the slot so as to be reciprocably movable along the cavity axis of the body member from a lower position to an upper position. The slide member is biased in the lower position so that the slide member (when in the lower position) and the shoulder cooperate to capture a joint end of a separated rod.
    Type: Grant
    Filed: August 25, 1987
    Date of Patent: January 31, 1989
    Inventor: Darrell Driskill