Patents by Inventor David K. Smith

David K. Smith 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: 5069204
    Abstract: An inhalation device comprising:(i) a breath-actuated inhaler comprising a medicament reservoir mounted within a housing which comprises a mouthpiece and breath-actuation means which prevents dispensing from the reservoir until a patient inhales through the mouthpiece, and,(ii) a protective casing surrounding the breath actuated inhaler, the casing comprising a body portion and a movable cover which may be displaced to allow a patient access to the mouthpiece to use the breath-actuated inhaler while it is within the casing, the breath-actuated inhaler being removable from the protective casing and operable outside the casing.
    Type: Grant
    Filed: August 17, 1990
    Date of Patent: December 3, 1991
    Assignee: Riker Laboratories, Inc.
    Inventors: David K. Smith, Anthony C. L. Wass
  • Patent number: 4361080
    Abstract: Disclosed is a real floor for a lauter tun comprising a plurality of elongated linear troughs, each trough extending unobstructed across the bottom of the vessel and each forming a relatively shallow upward opening V-shape. The elements making up the floor are shaped to provide the lauter tun floor with a circular profile.
    Type: Grant
    Filed: July 18, 1980
    Date of Patent: November 30, 1982
    Assignee: Henry Balfour & Company Ltd.
    Inventors: David K. Smith, Nigel Harlow, Samuel W. Maxfield
  • Patent number: 4327631
    Abstract: A rotary lautering machine is provided vertical blades, each blade having a pivotally attached sweeping foot. The sweeping feet are rotated from a first lautering position to a second sweeping position by pressure exerted on the feet by material in the lautering vessel. When the lautering machine rotates in one direction, the feet pivot to the lautering position. When the machine rotates in the opposite direction, the feet pivot to the sweeping position.
    Type: Grant
    Filed: September 17, 1980
    Date of Patent: May 4, 1982
    Assignee: Henry Balfour & Co.
    Inventors: David K. Smith, Nigel Harlow, Samuel W. Maxfield, James Mitchell