Patents by Inventor Brian P. Manzi

Brian P. Manzi 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).

  • Multiple position service seal unit with positive position indicating means
    Patent number: 4840229
    Abstract: A production sub carrying a plurality of annular locator rings is coupled in series relation with downhole production equipment. A collet latch assembly including fixed and floating collet members is connected to a down hole service tool and is inserted into releasable coupling engagement with the annular locator rings of the production sub. Resilient finger portions of the fixed collet are alternately supported and unsupported by the floating collet to establish positive engagement with a selected one of the annular locator rings or to permit passage of the latch assembly with respect to the locator ring. The foregoing arrangement provides positive restriction to longitudinal movement of a work string which allows a downhole service tool attached to the work string to be selectively positioned at predetermined operating locations relative to downhole equipment.
    Type: Grant
    Filed: September 18, 1987
    Date of Patent: June 20, 1989
    Assignee: Otis Engineering Corporation
    Inventors: Lewis D. Proctor, Colby M. Ross, Brian P. Manzi, Frank Giusti, Jr.
  • Multiple position service seal unit with positive position indicating means
    Patent number: 4722392
    Abstract: A production sub carrying a plurality of annular locator rings is coupled in series relation with downhole production equipment. A collet latch assembly including fixed and floating collet members is connected to a down hole service tool and is inserted into releasable coupling engagement with the annular locator rings of the production sub. Resilient finger portions of the fixed collet are alternately supported and unsupported by the floating collet to establish positive engagement with a selected one of the annular locator rings or to permit passage of the latch assembly with respect to the locator ring. The foregoing arrangement provides positive restriction to longitudinal movement of a work string which allows a downhole service tool attached to the work string to be selectively positioned at predetermined operating locations relative to downhole equipment.
    Type: Grant
    Filed: March 31, 1986
    Date of Patent: February 2, 1988
    Assignee: Otis Engineering Corporation
    Inventors: Lewis D. Proctor, Colby M. Ross, Brian P. Manzi, Frank Giusti, Jr.