Patent US5395594A successfully refreshed from Google Patents.
US5395594A
Expired / Lapsed
US
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Simultaneous multiple chemical synthesizer
Assignee: Shimadzu Corp
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Filing: 1992-08-24
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Granted: 1995-03-07
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Expires: 2012-08-24
Abstract
Abstract The present invention is directed to a simultaneous multiple chemical synthesizer comprising a number of reaction vessels wherein each vessel has a filter in the bottom portion thereof, a number of needles wherein each needle is connected to an aspiration injection line of a reaction mixture and a gas supply line in connection with each reaction vessel and each needle does not touch the resin contained in the reaction vessel, a number of arms which are horizontally and vertically movable and hold the respective needles, a bubbling gas line and a waste discharge line in connection with each reaction vessel, wherein each line is connected to the bottom portion of each reaction vessel, a number of purging means which move synchronously with said waste discharge lines, and means for washing the portions of the needles and purge means which contact with the reaction reagents.
Inventors
- 👤 Kiyoshi Nokihara
- 👤 Makoto Hazama
- 👤 Rintaro Yamamoto
- 👤 Shin Nakamura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 08:34
CPC Classifications
B; B01; B01J; B01J19/00; B01J19/0006; B01J19/004; B01J19/0046; C; C07; C07K; C07K1/00; C07K1/04; C07K1/045; B01J2219/00; B01J2219/00274; B01J2219/00277; B01J2219/00279; B01J2219/00281; B01J2219/00286; B01J2219/00288; B01J2219/00306; B01J2219/00308; B01J2219/00351; B01J2219/00373; B01J2219/00423; B01J2219/00479; B01J2219/00493; B01J2219/00497; B01J2219/005; B01J2219/00583; B01J2219/00585; B01J2219/0059; B01J2219/00596; B01J2219/00718; B01J2219/0072; B01J2219/00725; C40; C40B; C40B40/00; C40B40/04; C40B40/10; C40B60/00; C40B60/14
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
197 words
A simultaneous multiple chemical synthesizer, comprising: a plurality of reaction vessels wherein each vessel has a filter in the bottom portion thereof, whereon a solid-phase resin support is packed; a plurality of needles, wherein each needle is connected to an aspirating line for injection of a reaction mixture into a respective reaction vessel, and to a gas supply line for each reaction vessel, and wherein each needle does not touch said resin when inserted in the respective reaction vessel; one or more arms which are horizontally and vertically movable and hold said plurality of needles; means for moving said one or more arms in a horizontal and vertical direction; a bubbling gas line and a waste discharge line in connection with a respective reaction vessel, wherein each of said lines is connected to the bottom portion of its respective reaction vessel; a plurality of purging means which move horizontally and vertically into said respective reaction vessels synchronously with the opening of said waste discharge lanes; means for moving said purging means; and means for washing a portion of said needles and said purging means which come in contact with the reaction mixtures received in said reaction vessels.
Claim 2
Dependent Claim
197 words
A simultaneous multiple chemical synthesizer, comprising: a plurality of reaction vessels wherein each vessel has a filter in the bottom portion thereof, whereon a solid-phase resin support is packed; a plurality of needles, wherein each needle is connected to an aspirating line for injection of a reaction mixture into a respective reaction vessel, and to a gas supply line for each reaction vessel, and wherein each needle does not touch said resin when inserted in the respective reaction vessel; one or more arms which are horizontally and vertically movable and hold said plurality of needles; means for moving said one or more arms in a horizontal and vertical direction; a bubbling gas line and a waste discharge line in connection with a respective reaction vessel, wherein each of said lines is connected to the bottom portion of its respective reaction vessel; a plurality of purging means which move horizontally and vertically into said respective reaction vessels synchronously with the opening of said waste discharge lanes; means for moving said purging means; and means for washing a portion of said needles and said purging means which come in contact with the reaction mixtures received in said reaction vessels.
Claim 3
Dependent Claim
43 words
The simultaneous multiple chemical synthesizer according to claim 1, wherein said purging means comprises a means for introducing gas to each reaction vessel so as to discharge the waste from the bottom portion of each reaction vessel to a bottle for waste liquid.
Claim 4
Dependent Claim
27 words
The simultaneous multiple chemical synthesizer according to claim 1, wherein said filter comprises a polyalkylene filter selected from the group consisting of polypropylene, polyethylene and polyvinylidene fluoride.
Claim 5
Dependent Claim
22 words
The simultaneous multiple chemical synthesizer according to claim 1, wherein said filter has a pore size of about 5 to 10 μm.
Claim 6
Dependent Claim
24 words
The simultaneous multiple chemical synthesizer according to claim 1, wherein more than one arm is horizontally and vertically movable and holds the respective needles.
Claim 7
Dependent Claim
22 words
The simultaneous multiple chemical synthesizer according to claim 1, wherein one arm is horizontally and vertically movable and holds the respective needles.
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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) | 1998-03-06 | 1998-09-05 | 1999-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-03-06 | 2002-09-05 | 2003-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-03-06 | 2006-09-05 | 2007-03-07 | $7700.00 | Window Closed / Lapsed |