Patents by Inventor Simon D. Usher

Simon D. Usher 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).

  • Swivel or rotating joints
    Patent number: 4789188
    Abstract: A swivel joint for interconnecting two lengths of pipe, comprising an inner member (1) and an outer member (2), a chamber defined by the inner member (1) and the outer member (2) and accommodating bearing means (15a, 15b) locating the inner member (1) and the outer member (2) for rotary movement relative to one another. Pump means (8) for circulating lubricant within the chamber is provided, which pump means (8) is driven by relative movement between the inner member (1) and the outer member (2).
    Type: Grant
    Filed: June 30, 1986
    Date of Patent: December 6, 1988
    Assignee: J. H. Fenner & Co. Limited
    Inventors: Colin Seabrook, Simon D. Usher