Patents by Inventor A. Michael Filicetti

A. Michael Filicetti 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).

  • Compact counter balanced pump jack
    Patent number: 5027666
    Abstract: A compact well jack is particularly suitable for reciprocating a long stroke rod pump and in situations wherein horizontal area around the well head is limited. The pump jack has a frame with elongated guides, a lifting bar slidably disposed between the guides, a horizontal slot in the lifting bar, pulleys carrying an endless belt having a stud affixed opposite to a counter weight and extending into the slot such that rotation of the pulleys vertically reciprocates the lifting bar and sucker rod string while the stud moves horizontally within the slot.
    Type: Grant
    Filed: December 29, 1989
    Date of Patent: July 2, 1991
    Assignee: Conoco, Inc.
    Inventor: A. Michael Filicetti