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. 01, 2008
Filed:
Jan. 27, 2006
Applicants:
Thomas A. Nance, Aiken, SC (US);
Timothy J. Steeper, Trenton, SC (US);
Inventors:
Thomas A. Nance, Aiken, SC (US);
Timothy J. Steeper, Trenton, SC (US);
Assignee:
Washington Savannah River Company, LLC, Aiken, SC (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 25/10 (2006.01);
U.S. Cl.
CPC ...
Abstract
A sampling device for collecting depth-specific samples in silt, sludge and granular media has three chambers separated by a pair of iris valves. Rotation of the middle chamber closes the valves and isolates a sample in a middle chamber.