Fluent material handling – with receiver or receiver coacting mea – Plural filling means – For plural receivers simultaneously filled
Patent
1993-06-25
1994-09-06
Cusick, Ernest G.
Fluent material handling, with receiver or receiver coacting mea
Plural filling means
For plural receivers simultaneously filled
7386332, 7326413, 422100, 141 25, 141 24, 141130, 141114, B65B 304
Patent
active
053439090
ABSTRACT:
A liquid transfer device including a holder for a pipette array. A flexible preformed membrane having cups is over the proximal openings of the pipettes and sandwiched therebetween with a housing with the cups extending into the proximal openings of the pipettes. A vacuum drawn in the housing everts the membrane from the proximal openings thereby creating reduced pressure in the pipettes which when their distal ends are immersed in a liquid will draw up some of the liquid into the pipettes in substantially equal amounts. In one embodiment a movable abutment is provided to control the upward travel of the everting membrane and thereby the amount of liquid drawn into the pipettes. A method for fabricating the preformed membrane is also shown.
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Cusick Ernest G.
Schellin Eric P.
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