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US3865712A Expired / Lapsed US ⏱️ 0.0 years remaining

Electrode arrangement for an electrophoretical separation performed in a gel plate

Assignee: Pfizer Health AB
•
Filing: 1974-04-11
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Granted: 1975-02-11
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Expires: 1994-04-11
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Abstract

Abstract The present invention relates to an electrode arrangement for an electrophoretical separation performed in a gel plate. A multiple simultaneous electrophoretical separations it is suitable that these are performed in one and the same electrical field, i.e., with equal voltage and equal electrode distance. This is accomplished by a single elongated anode and a single elongated cathode. It is essential that the two electrodes are completely parallel, especially if the various samples, separated side by side, are to be directly compared after completed separation. When utilization of a gel electrophoresis apparatus for routine analytical purposes, as in clinical analysis, where it is desired to perform a great number of runs in series, the changing of gel plate tends to be time-consuming. The present invention accordingly relates to an electrode arrangement whereby the two electrodes easily can be removed from the gel plate for changing of this one, and thereafter again easily be applied in exact parallel. The present invention is also related to an electrode arrangement providing for free diversion from the electrode of gaseous electrode reaction products, with maintained simultaneous good contact between electrode and gel plate or electrolyte impregnated strip lying on the gel. The electrode arrangement according to this invention also permits that the lid is situated close to the gel plate, which facilitates the maintenance of a favourable humidity in the atmosphere above the plate. The invention is characterized in a mainly rectangular plate, parallel to the gel plate, said plate on its side facing the gel plate exhibiting two parallel rows of toothed elevations and two electrodes, extending one along each row, said electrodes consisting of threads of an inert, conducting material.

Inventors

  • 👤 Hilary E W Davies

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-31 13:52
CPC Classifications
G; G01; G01N; G01N27/00; G01N27/26; G01N27/416; G01N27/447; G01N27/44704

Claims Analysis

Total Claims: 5
Claim 1
Independent Claim 93 words
Electrode arrangement for an electrophoretical separation performed in a gel plate, characterized in that it comprises a mainly rectangular plate, parallel to said gel plate, which plate on its side facing the gel plate exhibits two parallel rows of toothed elevations and two electrodes, extending one along each row, said electrodes, consisting of threads of an inert, conducting materiAl, and wherein each electrode is pressed against the gel or against a strip, consisting of a porous material and impregnated by buffer solution and which is lying on the gel, by the toothed elevations.
Claim 2
Dependent Claim 93 words
Electrode arrangement for an electrophoretical separation performed in a gel plate, characterized in that it comprises a mainly rectangular plate, parallel to said gel plate, which plate on its side facing the gel plate exhibits two parallel rows of toothed elevations and two electrodes, extending one along each row, said electrodes, consisting of threads of an inert, conducting materiAl, and wherein each electrode is pressed against the gel or against a strip, consisting of a porous material and impregnated by buffer solution and which is lying on the gel, by the toothed elevations.
Claim 3
Dependent Claim 83 words
Electrode arrangement according to claim 1, characterized in that said plate on its side facing the gel plate exhibits rows of toothed elevations, said rows being arranged parallel in pairs, and exhibiting two electrodes, extending along two parallel rows, said electrodes consisting of threads of an inert, conducting material, wherein each electrode is pressed by the toothed elevations against the gel or against a strip, consisting of a porous material and impregnated with a buffer solution and which is lying on the gel.
Claim 4
Dependent Claim 16 words
Electrode arrangment according to claim 1, characterized in that said electrodes are made of platina threads.
Claim 5
Dependent Claim 16 words
Electrode arrangement according to claim 2, characterized in that said electrodes are made of platina threads.

References Cited (Backward Citations)

US3360454A Cited
US3616457A Cited
US3762877A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1978-02-10 1978-08-12 1979-02-11 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1982-02-10 1982-08-12 1983-02-11 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1986-02-10 1986-08-12 1987-02-11 $7700.00 Window Closed / Lapsed

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