Patents by Inventor David Henry Wilson

David Henry Wilson 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: 6068465
    Abstract: A rotary tabletting press for the production of tables comprises a rotatable turret carrying a die plate having a plurality of die cavities, each comprising a through bore having upper and lower openings, and respective pairs of upper and lower punches to work in each die cavity. Tabletting material enters the die cavities by an upper opening which is enclosed within a chamber disposed above the die plate. Dosing control of the die cavities comprises a fixed scraper blade disposed adjacent the upper surface of the die plate and intercepting the path of the die cavities. The turret comprises axially separable upper and lower parts and the chamber is defined between the upper and lower pans. A die clamping system includes a plurality of shouldered dies which accommodate a respective die cavity and which are simultaneously located in position. A common die clamping element is located axially when the upper housing part is in its operating position.
    Type: Grant
    Filed: May 13, 1996
    Date of Patent: May 30, 2000
    Assignee: BWI PLC
    Inventor: David Henry Wilson
  • Patent number: 3978640
    Abstract: A hard-gelatin capsule filling machine for filling two piece capsules is described wherein empty capsules from a random bulk supply thereof, in a hopper, are fed in succession from a feeding station to an uncapping station and then to a filling station and then to a re-capping station and then to an ejection station in a single continuously rotating phase of the machine. The fill for each capsule body is compressed into a soft slug in a die for subsequent insertion into the capsule body during its passage through the filling station.
    Type: Grant
    Filed: September 10, 1974
    Date of Patent: September 7, 1976
    Assignee: Manesty Machines, Ltd.
    Inventors: Jack Crossley, David Henry Wilson