US4635665A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Washing apparatus
Assignee: Eisai Co Ltd
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Filing: 1984-01-26
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Granted: 1987-01-13
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Expires: 2004-01-26
Abstract
Abstract This washing apparatus comprises holding a pipe assembly by means of a holding means. Said pipe assembly is consisted of a pouring pipe which acts to pour a wash liquid in micro wells of a container and a suction pipe which acts to suck said waste wash liquid from said micro wells. Said pipe assembly is formed of a dual-pipe consisting of a suction pipe and a pouring pipe disposed inside said suction pipe. The forward end opening portions of said both pipes are located on the substantially same plane.
Inventors
- 👤 Yuzaburo Namba
- 👤 Shigenari Kukisaki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 11:15
CPC Classifications
B; B08; B08B; B08B3/00; B08B3/02; B01; B01L; B01L13/00; B01L13/02; B01L2300/00; B01L2300/08; B01L2300/0809; B01L2300/0829; B01L3/00; B01L3/50; B01L3/508; B01L3/5085
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
201 words
In a micro well washing apparatus including at least one pipe assembly having a pouring pipe for pouring a wash liquid into micro wells, a suction pipe for sucking away waste wash liquid from within said micro wells and a holding means for holding at least one pipe assembly, the improvement comprising providing at least one dual-pipe assembly with a pouring pipe disposed inside of a suction pipe and the forward end opening portions of both pipes being in substantially the same plane, said dual pipe assembly being configured such that at least the forward opening portions of both pipes are disposable within a micro well, movement means for controlled vertical movement of said pipe assembly so that said forward opening portions of both pipes are disposable at both the opening of the micro well and near the bottom thereof, and means for simultaneously supplying wash liquid to said pouring pipe and suction to said suction pipe, whereby wash liquid is poured into and sucked from said micro well at positions of the forward opeining portions of both pipes which include the position of the opening of the micro well and the position of near the bottom of the micro well.
Claim 2
Dependent Claim
201 words
In a micro well washing apparatus including at least one pipe assembly having a pouring pipe for pouring a wash liquid into micro wells, a suction pipe for sucking away waste wash liquid from within said micro wells and a holding means for holding at least one pipe assembly, the improvement comprising providing at least one dual-pipe assembly with a pouring pipe disposed inside of a suction pipe and the forward end opening portions of both pipes being in substantially the same plane, said dual pipe assembly being configured such that at least the forward opening portions of both pipes are disposable within a micro well, movement means for controlled vertical movement of said pipe assembly so that said forward opening portions of both pipes are disposable at both the opening of the micro well and near the bottom thereof, and means for simultaneously supplying wash liquid to said pouring pipe and suction to said suction pipe, whereby wash liquid is poured into and sucked from said micro well at positions of the forward opeining portions of both pipes which include the position of the opening of the micro well and the position of near the bottom of the micro well.
Claim 3
Dependent Claim
14 words
A washing apparatus according to claim 1 wherein said plane is a horizontal surface.
Claim 4
Dependent Claim
16 words
A washing apparatus according to claim 2 wherein said horizontal surface is provided with several notches.
Claim 5
Dependent Claim
13 words
A washing apparatus according to claim 1 wherein said plane is a slope.
Claim 6
Dependent Claim
92 words
A washing apparatus according to claim 1 having a plurality of pipe assemblies and wherein said holding means is in the form of a box body, the inside of said box body is divided by a partition plate into a pouring chamber and a suction chamber, said pouring chamber being connected to the inlet of the pouring pipe, said suction chamber being connected to the outlet of the suction pipe, the pouring chamber is connected with a detergent supply means and the suction chamber is connected with a waste liquid suction means.
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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) | 1990-01-12 | 1990-07-14 | 1991-01-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-01-12 | 1994-07-14 | 1995-01-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-01-12 | 1998-07-14 | 1999-01-13 | $7700.00 | Window Closed / Lapsed |