Method and device for simultaneously transferring plural samples
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United States of America Patent
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Jun 11, 1996
Grant Date -
N/A
app pub date -
Feb 1, 1991
filing date -
Feb 1, 1991
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Abstract
In a preferred embodiment, a multiple sample transfer device which includes a plurality of hollow pistons disposed in a like number of cylindrical channels and connected to a moving plate to permit simultaneous movement of the pistons. At the lower end of each channel is a removable pipette tip. An apparatus is provided to bring a multiwell sample tray into operating engagement with the pipette tips. Flexible tubes are attached between the upper ends of the hollow pistons and a liquid reservoir. Clamping devices are provided to permit the selective pinching or opening of the tubes. When the tubes are pinched, the pistons can be used in either liquid-back-filled or air displacement modes to aspirate and dispense liquids from and to the sample tray. When the tubes are selectively sequentially pinched or open, aspiration and dispensing can be controlled by the timing of the pinching and the provision of vacuum or pressure in the liquid reservoir. All operations, including mounting and removal of the pipette tips, can be automatically controlled through use of a programmable computer.
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- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
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Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Astle, Thomas W | 607 Harborview Rd., Orange, CT 06477 | 29 | 883 |
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Fee | Large entity fee | small entity fee | micro entity fee | due date |
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Fee | Large entity fee | small entity fee | micro entity fee |
---|---|---|---|
Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
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