Patents by Inventor Mark A. Marra

Mark A. Marra 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).

  • Stud enclosure and method of use
    Patent number: 6654436
    Abstract: A stud enclosure for protecting a stud extending upwardly from a nuclear reactor pressure vessel (RPV) flange has a cylindrical can with a capped end and an open end. The capped end has an axially extending hole with a screw extending therein for fastening the stud enclosure to the stud. A seal ring is disposed adjacent the open end of the cylindrical can for sealing the ring on the RPV flange. A gas valve is disposed in the capped end of the cylindrical can for pressurizing the interior portion of the can with air. The stud enclosure is used to protect the RPV studs after the RPV head has been removed in order to permit access to the interior portions of the RPV.
    Type: Grant
    Filed: October 8, 2001
    Date of Patent: November 25, 2003
    Assignee: Westinghouse Electric Company LLC
    Inventors: Mark A. Marra, Reginald R. Dulaney
  • Stud enclosure and method of use
    Publication number: 20030068002
    Abstract: A stud enclosure for protecting a stud extending upwardly from a nuclear reactor pressure vessel (RPV) flange has a cylindrical can with a capped end and an open end. The capped end has an axially extending hole with a screw extending therein for fastening the stud enclosure to the stud. A seal ring is disposed adjacent the open end of the cylindrical can for sealing the ring on the RPV flange. A gas valve is disposed in the capped end of the cylindrical can for pressurizing the interior portion of the can with air.
    Type: Application
    Filed: October 8, 2001
    Publication date: April 10, 2003
    Inventors: Mark A. Marra, Reginald R. Dulaney
  • Restraining bar assembly for a swing
    Patent number: 5334099
    Abstract: A toddler swing (10) includes a restraining bar assembly (11) having a cross bar (12) and a lower extension member (13), the restraining bar assembly (11) being positively attached to and releasable from the swing (10). A latch mechanism (19) connects the lower extension member (13) to the seat (14) of the swing (10) by engaging a generally J-shaped hook (25) of the lower extension member (13) with a generally J-shaped catch (21) located beneath the seat (14) of the swing (10) as part of a spring (20). In addition, the restraining bar assembly (11) includes bosses (34) formed on the cross bar (12) of the restraining bar assembly (11) to be received in recesses (38) in the arm rests (16) of the swing (10). Together, the latch mechanism (19) and the bosses (34) positively position and hold the restraining bar assembly (11) in place.
    Type: Grant
    Filed: September 4, 1992
    Date of Patent: August 2, 1994
    Assignee: The Little Tikes Company
    Inventors: Mark A. Marra, Robert L. Quinlan, Jr.