US4604086A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multifunction centrifuge
Assignee: BENKO EVA
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Filing: 1985-01-23
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Granted: 1986-08-05
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Expires: 2005-01-23
Abstract
Abstract A multifunction centrifuge consists of a rotor 1 to which a plurality of centrifuge bowls 2 are rigidly fixed. Each bowl 2 has two chambers 3a, 3b connected with each other for free flow communication from either chamber to the other. One chamber 3a lies above the other 3b and is of a sack shape with a radially outwardly projecting closed bottom so that on stoppage of rotor rotation liquid therein flows back into the more deeply-lying other chamber 3b. The bowl 2 is light-transparent for photometric measurements.
Inventors
- 👤 Eva Benko
- 👤 Istvan Csabanko
- 👤 Aniko Porkolab
- 👤 Zsolt Szabo
- 👤 Gabor Takacs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 09:37
CPC Classifications
G; G01; G01N; G01N15/00; G01N15/04; G01N15/042; B; B04; B04B; B04B5/00; B04B5/04; B04B5/0407
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
87 words
A multifunction centrifuge comprising a rotor rotatable about a vertical axis and at least two centrifuge bowls disposed about the rotor, the improvement consisting in that the centrifuge bowls are rigidly connected to the rotor by bracket-like retaining walls thereof and each centrifuge bowl has an outer centrifugation chamber of sack-like or cylindrical shape having a constant cross-section with an outwardly facing bottom and an inner gravitational chamber connected to said outer chamber for bidirectional free communication, said gravitational chamber lying lower than the said outer chamber.
Claim 2
Dependent Claim
87 words
A multifunction centrifuge comprising a rotor rotatable about a vertical axis and at least two centrifuge bowls disposed about the rotor, the improvement consisting in that the centrifuge bowls are rigidly connected to the rotor by bracket-like retaining walls thereof and each centrifuge bowl has an outer centrifugation chamber of sack-like or cylindrical shape having a constant cross-section with an outwardly facing bottom and an inner gravitational chamber connected to said outer chamber for bidirectional free communication, said gravitational chamber lying lower than the said outer chamber.
Claim 3
Dependent Claim
25 words
A multifunction centrifuge according to claim 1, wherein an opening is provided in the centrifuge bowl above the lowest lying part of the gravitational chamber.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-08-04 | 1990-02-03 | 1990-08-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-08-04 | 1994-02-03 | 1994-08-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-08-04 | 1998-02-03 | 1998-08-05 | $7700.00 | Window Closed / Lapsed |