Patent ID: 6253628
Filing Date: 2001-07-03
Classification: B01L

Abstract:
A pipet gun for pipetting fluids into and out from a pipet comprising:a gun housing;a pipet support, coupled to said housing for supporting said pipet to said housing;air pressure supply means in communication with said pipet support for selectively supplying air pressure flow to said pipet for effecting said pipetting of said fluids;regulating means supported by said housing for operably regulating the flow rate of said air pressure supplied to said pipet;said regulating means including a manually-actuated trigger-operated valve;said valve being continuously movable to progressively change said air flow rate from a first air flow rate to a second air flow rate which is greater than said first air flow rate; andsaid valve being movable to a final position to non-progressively change said air flow rate from said second air flow rate to a third air flow rate which is substantially greater than said second air flow rate.