Chemistry: electrical and wave energy – Apparatus – Coating – forming or etching by sputtering
Patent
1993-09-14
1995-05-02
Niebling, John
Chemistry: electrical and wave energy
Apparatus
Coating, forming or etching by sputtering
2041828, G01N 2726, G01N 27447
Patent
active
054116570
ABSTRACT:
An electrophoresis cassette is provided including a thin, flat, rectangular, molded plastic front plate which overlies a thin, flat, rectangular, molded plastic back plate in opposing spaced apart relationship, the front and back plates being separated from each other by a thin, narrow, generally U-shaped embossment formed on the opposing surface of the back plate and extending along the two opposite side edges and the bottom edge of the back plate. A liquid-tight seal formed by an ultrasonic weld extends continuously along the embossment and joins the plates together, the plates defining therebetween a narrow gap for holding a gel medium. An elongated narrow groove is provided within the non-opposing surface of each plate and extends in substantially coinciding relation with the groove in the other plate across the bottom of the plates at a point just above the seal, the grooves forming at the bottom portion of the cassette a tab which can be easily broken off to expose the gel medium within the gap.
REFERENCES:
patent: 4119521 (1978-10-01), Chirikjian
Robert O. Poyton "A Versatile Apparatus for Polyacrylamide and Agarose Gel Electrophoresis in Plexiglass Slab Gel Molds" Analytical Bochemistry, vol. 90, No. 2 (Oct. 15, 1978) 624-632.
Doherty John R.
Niebling John
Starsiak Jr. John S.
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