Multiple channel pipetting device
AssigneeCyberlab, Inc.
InventorsWalter C. Meltzer, Edward J. Malvey, III
Life of this patent
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Abstract
This invention is a multiple channel pipetting device for aspirating and dispensing volumes of liquid using disposable or non-disposable tips. The device is comprised of a main body made of a hard synthetic material with multiple channels and an associated ram plate activated by a four-quadrant synchronous drive. The drive assembly is mounted on four standoffs, and the ram plate moves up and down by the means of four lead screws moved with a synchronous fibrous belt moved with a motor. A moveable plate mounted to the bottom of the device to remove disposable tips is activated by a set of automated ejector plate arms. The entire device can be mounted in a self-contained housing or attached to another device allowing it to be moved.
Claims2
A multiple channel pipetting device for dispensing and aspirating volumes of liquid comprising:
- a main body having a plurality of holes bored therethrough;
- a ram plate having a plurality of pistons mounted thereon which correspond to and engage said multiple holes;
- a mounting plate attached to said ram plate, having a motor, and a drive mechanism attached thereto for driving said pistons and an ejector mechanism;
- said ejector mechanism comprising:
- an ejector arm attached to said ram plate which moves along a ramp and engages an ejector plate which is attached to said main body by a plurality of springs;
- and
- a stationary post which engages a stand off located on said ejector arm to move said ejector arm along said ramp for engagement on to said ejector plate;
- and
- whereby said ram plate with ejector arm moves down thereby causing said ejector plate to move and knock a plurality of pipette tips off said multiple pipetting device.
Dependencies are inferred from the claim text.