Patents by Inventor John C. Heinze

John C. Heinze 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).

  • Sliding sleeve seal assembly incorporating replaceable elastomeric element
    Patent number: 4793621
    Abstract: A seal assembly for sealing the annulus defined between two telescopically related cylindrical surfaces comprises an annular groove in one of the cylindrical surfaces haiving recessed end walls for receiving the axial end portions of an annular elastomeric element. A retaining C-ring is snapped into position to lie between the overhanging lip defined by one of the annular recesses and compress a reduced diameter end portion of the annular elastomeric seal element into snug engagement with the bottom of the groove.
    Type: Grant
    Filed: December 7, 1987
    Date of Patent: December 27, 1988
    Assignee: Baker Hughes Incorporated
    Inventor: John C. Heinze