Patents by Inventor William Pinkerton

William Pinkerton 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).

  • Buccal end device for a smoking rod
    Patent number: 4574820
    Abstract: A cigarette with a tobacco rod (5,6) has at its buccal end a filter plug (10) and a hollow tubular core (8) with a cross wall (9) formed with orifices of a certain size and shape. Ventilating air drawn in through perforations (12) in a tipping wrapper (7) and through a porous inner wrapper (11) is mixed with smoke drawn through the tobacco rod and the mixture is sucked through the orifices (13) which promote particular mixing and pressure drop effects.
    Type: Grant
    Filed: April 6, 1984
    Date of Patent: March 11, 1986
    Assignee: Gallaher Limited
    Inventors: William Pinkerton, Sherman J. A. Hawthorne