The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 03, 1979
Filed:
Mar. 25, 1977
William B Allington, deceased, late of Lincoln, NE (US);
James W Nelson, Lincoln, NE (US);
Arthur L Cordry, Lincoln, NE (US);
Gail A McCullough, Lincoln, NE (US);
Don E Mitchell, Lincoln, NE (US);
Instrumentation Specialties Company, Lincoln, NE (US);
Abstract
To concentrate a material by separating it from a diluting medium, the combination of the material and medium is placed in one of two wells in the bottom of a plastic sample concentrator cell, with each well being closed at its bottom end by a different cellophane membrane in contact with a buffer solution in a different one of two buffer compartments. A buffer solution also connects the combination of material and medium in one well and the cellophane bottom of the other well within the sample concentration cell through a recess in the bottom of the sample concentration cell. A potential is applied across the two buffer compartments to cause the material to migrate by electrophoresis from the medium in one well, through the buffer in the sample concentrating cell and into the other well, where it is concentrated against the cellophane membrane for easy removal by pipetting.