US4931400A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for pouring washing water onto multi-well plates
Assignee: Sanofi Aventis KK
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Filing: 1988-08-19
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Granted: 1990-06-05
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Expires: 2008-08-19
Abstract
Abstract A device for forcing liquid into the wells of a multi-well plate, comprising a tank having an interior for holding a liquid, the tank including a bottom portion having multiple fine orifices spaced for registry with each of the multiple wells of the plate, a top portion opposite the bottom portion, and side portions connecting the top portion and the bottom portion, an inlet for supplying rinsing liquid to the interior of the tank, and a pushable surface portion selectively movable towards the interior of the tank for forcing rinsing liquid contained within the tank through the orifices.
Inventors
- 👤 Tomofumi Jitsukawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:24
CPC Classifications
G; G01; G01N; G01N33/00; G01N33/48; G01N33/50; G01N33/53; G01N33/543; G01N33/54366; B; B01; B01L; B01L13/00; B01L13/02; B01L2300/00; B01L2300/08; B01L2300/0809; B01L2300/0829; B01L2400/00; B01L2400/04; B01L2400/0475; B01L2400/0481; B01L3/00; B01L3/50; B01L3/508; B01L3/5085
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
120 words
A device for forcing liquid into the wells of a multi-well plate, comprising: a tank having an interior volume for holding a liquid, said tank including a bottom portion having multiple fine orifices spaced for registry with each of said multiple-wells of said plate, a top portion opposite said bottom portion, and side portions connecting said top portion and said bottom portion; means for supplying liquid to the interior of said tank; and a pushable surface portion covering a majority of the exterior surface area of said top portion, said pushable surface portion being selectively movable into the interior of said tank for reducing the volume of said tank and thereby forcing liquid contained within said tank through said orifices.
Claim 2
Independent Claim
120 words
A device for forcing liquid into the wells of a multi-well plate, comprising: a tank having an interior volume for holding a liquid, said tank including a bottom portion having multiple fine orifices spaced for registry with each of said multiple-wells of said plate, a top portion opposite said bottom portion, and side portions connecting said top portion and said bottom portion; means for supplying liquid to the interior of said tank; and a pushable surface portion covering a majority of the exterior surface area of said top portion, said pushable surface portion being selectively movable into the interior of said tank for reducing the volume of said tank and thereby forcing liquid contained within said tank through said orifices.
Claim 3
Dependent Claim
19 words
A device as set forth in claim 1, wherein said side portions are formed of a hard plastic material.
Claim 4
Dependent Claim
19 words
A device as set forth in claim 1, wherein the top portion is detachably connected to the side portions.
Claim 5
Dependent Claim
25 words
A device as set forth in claim 1, wherein said supplying means include a supply inlet formed on one of said portions of said tank.
Claim 6
Dependent Claim
21 words
A device as set forth in claim 1, wherein said pushable surface portion is formed of an elastic synthetic resin material.
References Cited (Backward Citations)
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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) | 1993-06-04 | 1993-12-04 | 1994-06-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-06-04 | 1997-12-04 | 1998-06-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-06-04 | 2001-12-04 | 2002-06-05 | $7700.00 | Window Closed / Lapsed |