Expansible Chamber Dispenser Patents (Class 141/23)
  • Patent number: 4175597
    Abstract: An irrigation solution device comprising, a syringe having a barrel, a container having a solution receiving chamber, and a barrier member extending from an upper portion of the container into the chamber. The barrier member has an inner end portion defining an opening communicating with the chamber, and defines a channel having a sufficiently large width to receive the barrel of the syringe and a sufficient length to substantially cover the syringe barrel when inserted into the channel. The device has a closure member to releasably close the channel from passage of air between the atmosphere and the chamber.
    Type: Grant
    Filed: August 1, 1977
    Date of Patent: November 27, 1979
    Assignee: The Kendall Company
    Inventor: James J. Peterson