Patents Assigned to Vision Medical & Dental
  • Patent number: 5480124
    Abstract: A vacuum tubing valve including a first receiver tube shoulder including a tubular aperture extending along a longitudinal axis for receiving a first tubular hose. Connecting the shoulder is a stator unit including a C-shaped cavity with an opening about the side opposite the curved C-shaped wall and two apertures within the C-shaped wall and in axial alignment along the longitudinal axis. A 10 second receiver tube shoulder and tubular aperture extend along the longitudinal axis joining the stator about the second aperture. The stator includes a C-shaped rotor positioned and rotatable within the cavity, and having an elongated channel extending end-to-end. The channel is in alignment along the longitudinal axis with the first and second apertures when the rotor is in a first position, and the channel is off-set from the longitudinal axis when the rotor is in a second position.
    Type: Grant
    Filed: November 30, 1994
    Date of Patent: January 2, 1996
    Assignee: Vision Medical and Dental
    Inventors: Bruce K. Bartlett, Fritz Haas
  • Patent number: D357064
    Type: Grant
    Filed: December 20, 1993
    Date of Patent: April 4, 1995
    Assignee: Vision Medical & Dental
    Inventors: Bruce K. Bartlett, Lars E. Callne