Patents by Inventor William G. Roast

William G. Roast 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: 4636165
    Abstract: A ring for stripping capsule sections from a tapered capsule-forming pin has an annular outer member 11 with a tapered surface 12 engaging tapered surfaces 13 on four angularly spaced sections 14 forming an inner member and with inner surfaces 15 defining a bore slidable on the pin. A spring plate 60 is held in groove 62 in member 11 and bears on an end face of the sections 14 to hold the sections in engagement with the pin and resist radially outwards movement of the sections 14 when they engage the capsule section. In modified arrangements the plate 60 embraces the member 11 and engages an end face of the sections 14; and the plate 60 is replaced by a spring clip embracing the sections 14 which extend beyond the member 11.
    Type: Grant
    Filed: November 7, 1985
    Date of Patent: January 13, 1987
    Assignee: Lilly Industries Limited
    Inventor: William G. Roast
  • Patent number: 4260357
    Abstract: This invention relates to a ring form of a rigid and durable material with a metal insert arranged in its passageway. The ring is employed to strip thin walled gelatin capsules from capsule-forming pins which are slightly tapered along their entire length.
    Type: Grant
    Filed: February 15, 1980
    Date of Patent: April 7, 1981
    Assignee: Lilly Industries Limited
    Inventors: William G. Roast, Geoffrey E. Adnams