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.:

US 8398935 B1

PDF
Full Text
Expired
Date of Patent:
Mar. 19, 2013

Filed:

Apr. 07, 2011
Applicants:

Peter B. Howell, Jr., Gaithersburg, MD (US);

Frances S. Ligler, Potomac, MD (US);

Adam R. Shields, Alexandria, VA (US);

Inventors:

Peter B. Howell, Jr., Gaithersburg, MD (US);

Frances S. Ligler, Potomac, MD (US);

Adam R. Shields, Alexandria, VA (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B01L 3/00 (2006.01); C12Q 1/68 (2006.01); G01N 21/75 (2006.01); G01N 1/10 (2006.01); G01N 33/543 (2006.01); G01N 33/554 (2006.01); G01N 33/551 (2006.01); G01N 33/544 (2006.01); C12N 11/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A sheath flow system having a channel with at least one fluid transporting structure located in the top and bottom surfaces situated so as to transport the sheath fluid laterally across the channel to provide sheath fluid fully surrounding the core solution. At the point of introduction into the channel, the sheath fluid and core solutions flow side by side within the channel or the core solution may be bounded on either side by the sheath fluid. The system is functional over a broad channel size range and with liquids of high or low viscosity. A wide variety of shapes of fibers and other materials can be produced from this system through the use of polymerizable material.


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