Patents by Inventor Giuseppe S. Piana

Giuseppe S. Piana 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: 5174194
    Abstract: The machine includes a motor-driven conveyor screw provided in a supply duct connecting the coffee grinder to a percolation chamber to move the ground coffee at a rate higher than that of its supply from the coffee grinder. Preferably, the percolation chamber has an associate prechamber into which the supply duct opens. A device for closing the percolation chamber and compressing the charge of coffee comprises a tamper which is reciprocable between a withdrawn position in which it does not occupy the prechamber and closes its side opposite the percolation chamber and an advance position of compressing the charge in the chamber and sealing the chamber.
    Type: Grant
    Filed: June 17, 1987
    Date of Patent: December 29, 1992
    Inventor: Giuseppe S. Piana
  • Patent number: 4471689
    Abstract: A disposable cartridge comprises a substantially rigid envelope of plastics material which contains a dose of water-soluble granular, powdery or similar particulate matter adapted to produce a beverage by brewing with hot water. The envelope has an inlet endwall with one or more water inlet through holes close to, and radially inside a peripheral region thereof, the inlet end-wall being otherwise imperforate. The envelope has an opposite outlet endwall which has, within the envelope, a substantially axial tubular appendage which extends from the inner face of the outlet wall towards the inlet wall and which defines a beverage outlet conduit with an intake orifice near the inlet wall and an out-flow orifice in the outer face of the outlet wall.
    Type: Grant
    Filed: February 1, 1982
    Date of Patent: September 18, 1984
    Assignee: Unoper s.r.l.
    Inventor: Giuseppe S. Piana
  • Patent number: 4389925
    Abstract: A beverage extracting and dispensing machine for use with flattened round cartridges, which contain a brewable product, such as ground coffee, freeze-dried coffee, tea, broth and the like. The cartridges have permeable upper and lower walls and a substantially cylindrical sidewall.A cartridge may be slid to a brewing station in which it is laterally embraced by opposite clamping jaws. During its movement to the brewing station a new cartridge spreads the jaws apart and pushes an old cartridge away from the brewing station. The spreading apart of the jaws starts an automatic brewing cycle at the beginning of which a presser plate is lowered onto the cartridge and presses it with a tight seal on an underlying fixed support while the cartridge is laterally clamped by the jaws.
    Type: Grant
    Filed: June 10, 1981
    Date of Patent: June 28, 1983
    Assignee: UNOPER S.r.l.
    Inventor: Giuseppe S. Piana