×

MULTIPLEXED LATCHING VALVES FOR MICROFLUIDIC DEVICES AND PROCESSORS

  • US 20100252123A1
  • Filed: 06/18/2010
  • Published: 10/07/2010
  • Est. Priority Date: 03/22/2006
  • Status: Active Grant
First Claim
Patent Images

1. A membrane latching valve structure comprising:

  • first and second input channels;

    a first membrane valve having an input in fluid communication with the first input channel and a control of the first membrane valve in fluid communication with atmospheric;

    a second membrane valve having an input in fluid communication with the first input channel, an output in fluid communication with an output of the first membrane valve, and a control in fluid communication with the second input channel;

    a third membrane valve having a control in fluid communication with the output of the first membrane valve and the output of the second membrane valve;

    such that when a sufficient vacuum is applied to the first and second input channels, the third membrane valve moves to an open position and is latched in that position when the vacuum is removed; and

    such that when a sufficient pressure is applied to the first and second input channels, the third membrane valve moves to a closed position and is latched in that position when the pressure is removed.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×