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US4666581A
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Apparatus for two-dimensional electrophoresis
Assignee: Hitachi Ltd
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Filing: 1985-04-29
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Granted: 1987-05-19
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Expires: 2005-04-29
Abstract
Abstract This invention relates to an apparatus for two-dimensional electrophoresis which comprises a supporting plate fixed to a rotary axis, a support for first dimension electrophoresis disposed on the supporting plate and a support for second dimension electrophoresis disposed on another supporting plate. Both the supports are arranged in such a fashion that when the rotary axis is rotated, the support for the first dimension electrophoresis comes on the support for the second dimension electrophoresis or reaches a predetermined position in the support for the second dimension electrophoresis. This arrangement can shift the support for the first dimension electrophoresis to the support for the second dimension electrophoresis without damaging the former.
Inventors
- 👤 Michio Itoh
- 👤 Isao Ishikawa
- 👤 Motoko Yoshida
- 👤 Kazunori Okano
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 21:45
CPC Classifications
G; G01; G01N; G01N27/00; G01N27/26; G01N27/416; G01N27/447; G01N27/44756; G01N27/44773
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
120 words
An apparatus for two-dimensional electrophoresis comprising a supporting plate fixed to a rotary axis, a support for the first dimension electrophoresis disposed on said supporting plate and a support for the second dimension electrophoresis disposed on another supporting plate, both of said supports being so arranged that when said rotary axis is rotated, said support for the first dimension electrophoresis reaches a predetermined position on or in said support for the second dimension electrophoresis; a section of said support for the first dimensional electrophoresis being trapezoidal, and said support for the second dimension electrophoresis having a groove the sides of which define an inverted trapezoidal section which corresponds to the trapezoidal section of said support for the first dimension electrophoresis.
Claim 2
Independent Claim
120 words
An apparatus for two-dimensional electrophoresis comprising a supporting plate fixed to a rotary axis, a support for the first dimension electrophoresis disposed on said supporting plate and a support for the second dimension electrophoresis disposed on another supporting plate, both of said supports being so arranged that when said rotary axis is rotated, said support for the first dimension electrophoresis reaches a predetermined position on or in said support for the second dimension electrophoresis; a section of said support for the first dimensional electrophoresis being trapezoidal, and said support for the second dimension electrophoresis having a groove the sides of which define an inverted trapezoidal section which corresponds to the trapezoidal section of said support for the first dimension electrophoresis.
Claim 3
Independent Claim
144 words
An apparatus for two-dimensional electrophoresis comprising a supporting plate fixed to a rotary axis, a support for the first dimension electrophoresis disposed on said supporting plate and a support for the second dimension electrophoresis disposed on another supporting plate, both of said supports being so arranged that when said rotary axis is rotated, said support for the first dimension electrophoresis reaches a predetermined position on or in said support for the second dimension electrophoresis; a plurality of sets each consisting of said support for the first dimension electrophoresis and said support for the second dimension electrophoresis being provided, said supports being gels, and each of the gels for the first dimension electrophoresis being electrolytically bridged at both of its ends to anolyte and catholyte containers for the first dimension electrophoresis by an electrolyte bridge material disposed substantially at right angles to the electrophoretic direction.
Claim 4
Independent Claim
144 words
An apparatus for two-dimensional electrophoresis comprising a supporting plate fixed to a rotary axis, a support for the first dimension electrophoresis disposed on said supporting plate and a support for the second dimension electrophoresis disposed on another supporting plate, both of said supports being so arranged that when said rotary axis is rotated, said support for the first dimension electrophoresis reaches a predetermined position on or in said support for the second dimension electrophoresis; a plurality of sets each consisting of said support for the first dimension electrophoresis and said support for the second dimension electrophoresis being provided, said supports being gels, and each of the gels for the first dimension electrophoresis being electrolytically bridged at both of its ends to anolyte and catholyte containers for the first dimension electrophoresis by an electrolyte bridge material disposed substantially at right angles to the electrophoretic direction.
Claim 5
Independent Claim
96 words
An apparatus for two-dimensional electrophoresis comprising a supporting plate fixed to a rotary axis, a first gel support for a first dimension electrophoresis disposed on said supporting plate and a second gel support for a second dimension electrophoresis disposed on another supporting plate, said second gel support having an opening therein, both of said gel supports being so arranged on said support plates that when said rotary axis is rotated, said first gel support for the first dimension electrophoresis reaches a predetermined position within the opening of said the second gel support for second dimension electrophoresis.
Claim 6
Independent Claim
96 words
An apparatus for two-dimensional electrophoresis comprising a supporting plate fixed to a rotary axis, a first gel support for a first dimension electrophoresis disposed on said supporting plate and a second gel support for a second dimension electrophoresis disposed on another supporting plate, said second gel support having an opening therein, both of said gel supports being so arranged on said support plates that when said rotary axis is rotated, said first gel support for the first dimension electrophoresis reaches a predetermined position within the opening of said the second gel support for second dimension electrophoresis.
Claim 7
Dependent Claim
55 words
The apparatus for two-dimensional electrophoresis as defined in claim 3, wherein said first gel support for the first dimension electrophoresis has a trapezoidal cross-section and the opening in said second gel support for the second dimension electrophoresis defines an inverted trapezoidal shaped groove into which said first gel support is located at said predetermined position.
Claim 8
Dependent Claim
82 words
The apparatus for two-dimensional electrophoresis as defined in claim 3, wherein a plurality of sets each consisting of said first gel support for the first dimensional electrophoresis and said second gel support for the second dimension electrophoresis are provided, and each of the first gel supports for the first dimension electrophoresis being electrolytically bridged at both ends to anolyte and catholyte containers, respectively, for the first dimension electrophoresis by an electrolyte bridge material disposed substantially at right angles to the electrophoresis direction.
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) | 1990-05-18 | 1990-11-17 | 1991-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-05-18 | 1994-11-17 | 1995-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-05-18 | 1998-11-17 | 1999-05-19 | $7700.00 | Window Closed / Lapsed |