Patents by Inventor Stephen F. Sutherland

Stephen F. Sutherland 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).

  • Syringe with two part mastitis cannula cap
    Patent number: 5059172
    Abstract: A two part mastitis cannula cap includes an outer cap and an inner cap. The inner cap is not as long as the cannula so that a free end of the cannula protrudes beyond an end face of the inner cap. This cannula protrusion is covered by the outer cap which is securable about the free end of the inner cap. Controlled depth partial insertion of the cannula into the teat canal of a dairy cow can be accomplished by removal of only the outer cap. Alternatively, full depth cannula insertion is accomplishable upon removal of the two parts of the cap. In one embodiment, a snap-off outer cap is used. In a second embodiment, a twist-off or breakaway outer cap is utilized.
    Type: Grant
    Filed: April 14, 1989
    Date of Patent: October 22, 1991
    Assignee: American Home Products
    Inventors: Stephen F. Sutherland, Jerome Silverstein
  • Two part mastitis cannula cap
    Patent number: 4850970
    Abstract: A two part mastitis cannula cap includes an outer cap and an inner cap. The inner cap is not as long as the cannula so that a free end of the cannula protrudes beyond an end face of the inner cap. This cannula protrusion is covered by the outer cap which is securable about the free end of the inner cap. Controlled depth partial insertion of the cannula into the teat canal of a dairy cow can be accomplished by removal of only the outer cap. Alternatively, full depth cannula insertion is accomplishable upon removal of the two parts of the cap.
    Type: Grant
    Filed: June 23, 1988
    Date of Patent: July 25, 1989
    Assignee: American Home Products, Corp.
    Inventor: Stephen F. Sutherland