US5365798A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pipetting device
Assignee: Siemens Healthcare Diagnostics Products GmbH
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Filing: 1993-05-13
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Granted: 1994-11-22
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Expires: 2013-05-13
Abstract
Abstract In the pipetting device for mixing liquids, a pipetting tube (7) is located in a receiving arrangement (6), and the receiving arrangement (6) is rotatably (10) mounted in a mounting device (5) and connected via a coupling (12, 13) to an eccentric drive (26).
Inventors
- 👤 Rudolf Kressirer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 15:56
CPC Classifications
G; G01; G01N; G01N35/00; G01N35/10; B; B01; B01F; B01F31/00; B01F31/44; B01F31/445; B01L; B01L3/00; B01L3/02; B01L3/021; B01F2101/00; B01F2101/23; G01N2035/00346; G01N2035/00425; G01N2035/1027; G01N2035/1048; G01N2035/1058
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
52 words
A pipetting apparatus for mixing liquids, the apparatus comprising: a holder; a pipetting tube held by the holder; a mounting device rotatably mounting the holder; and an eccentric drive for causing the pipetting tube to oscillate and mix liquids, the eccentric drive being connected to the mounting device by a first coupling.
Claim 2
Dependent Claim
52 words
A pipetting apparatus for mixing liquids, the apparatus comprising: a holder; a pipetting tube held by the holder; a mounting device rotatably mounting the holder; and an eccentric drive for causing the pipetting tube to oscillate and mix liquids, the eccentric drive being connected to the mounting device by a first coupling.
Claim 3
Dependent Claim
31 words
The apparatus as claimed in claim 1, wherein: the first coupling comprises first and second pressure rollers; and the eccentric drive comprises an eccentric fixed on a shaft of a motor.
Claim 4
Dependent Claim
71 words
The apparatus as claimed in claim 1, further comprising: a heating device for heating the pipetting tube, said tube having first and second zones, the first zone including a tip of the pipetting tube having a relatively small pipetting volume, and the second zone being coterminous with the first zone and including a portion of the pipetting tube having a pipetting volume larger than the pipetting volume in the first zone.
Claim 5
Dependent Claim
23 words
The apparatus as claimed in claim 3, wherein the pipetting tube is straight in the first zone and coiled in the second zone.
Claim 6
Dependent Claim
33 words
The apparatus as claimed in claim 3, wherein the pipetting tube is in contact with the heating device that further comprises a heat-conducting heat transfer means in a region of the second zone.
Claim 7
Dependent Claim
24 words
The apparatus as claimed in claim 1, further comprising: a second coupling mounted on the holder for connecting the pipetting tube to a feedline.
Claim 8
Dependent Claim
84 words
A pipetting apparatus for mixing liquids, the apparatus comprising: a holder; a pipetting tube held by the holder; a mounting device rotatably mounting the holder; an eccentric drive for causing the pipetting tube to oscillate and mix liquids and including an eccentric fixed on a shaft of a motor, the eccentric drive being connected to the mounting device by a first coupling having first and second pressure rollers; and a second coupling mounted on the holder for connecting the pipetting tube to a feedline.
Claim 9
Dependent Claim
84 words
A pipetting apparatus for mixing liquids, the apparatus comprising: a holder; a pipetting tube held by the holder; a mounting device rotatably mounting the holder; an eccentric drive for causing the pipetting tube to oscillate and mix liquids and including an eccentric fixed on a shaft of a motor, the eccentric drive being connected to the mounting device by a first coupling having first and second pressure rollers; and a second coupling mounted on the holder for connecting the pipetting tube to a feedline.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1997-11-21 | 1998-05-23 | 1998-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-11-21 | 2002-05-23 | 2002-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-11-21 | 2006-05-23 | 2006-11-22 | $7700.00 | Window Closed / Lapsed |