Patents by Inventor John B. Scannell

John B. Scannell 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: 4252352
    Abstract: A sealing ring for a rotary shaft is disclosed. The sealing ring has a planar frusto-conical configuration and is received in an obliquely slanted groove provided in either the rotary shaft or the bearing surface surrounding the shaft. The use of an obliquely slanted groove causes seal contact over a wide area on the rotary shaft reducing heat buildup, while the frusto-conical configuration insures that the lips of the seal are in firm continuous circumferential contact with the shaft. Oblique mounting of the sealing ring also causes axial flow of the fluid being sealed and the formation of a fluid annulus adjacent the seal and on the pressure side thereof. Selective positioning of a plurality of obliquely mounted sealing rings results in the formation of complementary annuli and the axial flow of fluid between adjacent sealing rings.
    Type: Grant
    Filed: April 24, 1980
    Date of Patent: February 24, 1981
    Assignee: Parker-Hannifin Corporation
    Inventor: John B. Scannell
  • Patent number: 4231579
    Abstract: A sealing ring for a rotary shaft is disclosed. The sealing ring has a planar frusto-conical configuration and is received in an obliquely slanted groove provided in either the rotary shaft or the bearing surface surrounding the shaft. The use of an obliquely slanted groove causes seal contact over a wide area on the rotary shaft reducing heat buildup, while the frusto-conical configuration insures that the lips of the seal are in firm continuous circumferential contact with the shaft. Oblique mounting of the sealing ring also causes axial flow of the fluid being sealed and the formation of a fluid annulus adjacent the seal and on the pressure side thereof. Selective positioning of a plurality of obliquely mounted sealing rings results in the formation of complementary annuli and the axial flow of fluid between adjacent sealing rings.
    Type: Grant
    Filed: July 12, 1978
    Date of Patent: November 4, 1980
    Assignee: Parker-Hannifin Corporation
    Inventor: John B. Scannell