US4534647A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for photometrically scanning gels
Assignee: INSTITUT MOLEKULYARNOI BIOLOGII I BIOKHIMII AKADEMII NAUK KAZAKHSKOR SSR A CORP OF USSR
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Filing: 1981-02-23
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Granted: 1985-08-13
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Expires: 2001-02-23
Abstract
Abstract An apparatus for photometrically scanning gels comprises a monochromator from which the light beam passes through a stop aperture and a gel placed in a cell, which are installed one after the other along the path of the light beam. The cell is caused to move relative to the light beam by means of a drive and the light is received by a photometer. The cell is made in the form of two superposed discs each having on one side congruent grooves which define at least one compartment for placing the gels therein when the discs are superposed on one another.
Inventors
- 👤 Valery N. Gross
- 👤 Vyacheslav D. Stupnik
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 06:12
CPC Classifications
G; G01; G01N; G01N21/00; G01N21/17; G01N21/59; G01N21/5907; G01N21/5911; G01N27/00; G01N27/26; G01N27/416; G01N27/447; G01N27/44704; G01N27/44717; G01N27/44721
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
103 words
An apparatus for photometrically scanning gels, comprising a monochromator from which a light beam pases through a stop aperture and a gel placed in a cell, which are installed one after the other along the path of the light beam, the cell being caused to move relative to the light beam by means of an electromechanical drive and the light being received by a photometer, wherein the improvement comprises the cell comprising two superposed discs each having on at least one side thereof congruent grooves which define at least one compartment for placing gels therein when the discs are superposed on one another.
Claim 2
Independent Claim
103 words
An apparatus for photometrically scanning gels, comprising a monochromator from which a light beam pases through a stop aperture and a gel placed in a cell, which are installed one after the other along the path of the light beam, the cell being caused to move relative to the light beam by means of an electromechanical drive and the light being received by a photometer, wherein the improvement comprises the cell comprising two superposed discs each having on at least one side thereof congruent grooves which define at least one compartment for placing gels therein when the discs are superposed on one another.
Claim 3
Dependent Claim
41 words
An apparatus according to claim 1, wherein both discs of the cell have apertures in a surface opposite to the surface in which the groove is defined and in line with the bottom of the grooves for the passage of light.
Claim 4
Dependent Claim
66 words
An apparatus according to claim 2, wherein grooves are made on both sides of the discs of the cell, the grooves made on the opposite side of the discs of the cell function as apertures for the passage of light, and, when the discs are superposed on one another with these sides facing toward one another, they also define at least one compartment for placing gels.
Claim 5
Dependent Claim
23 words
An apparatus according to claim 1 wherein the grooves of the discs of the cell are made along the perimeter of the discs.
Claim 6
Dependent Claim
82 words
An apparatus according to any claim 1 through 4, further comprising a bath filled with a liquid having a refractivity index similar to the refractivity index of the material of the gels, the bath having an optically transparent inlet window and an outlet window for the passage of light beam and being installed between the stop aperture and the photometer, the part of the discs of the cell having the compartment for placing the gels therein being submerged in the bath liquid.
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) | 1988-08-12 | 1989-02-11 | 1989-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-08-12 | 1993-02-11 | 1993-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-08-12 | 1997-02-11 | 1997-08-13 | $7700.00 | Window Closed / Lapsed |