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:
Sep. 15, 2020
Filed:
Jul. 10, 2017
Board of Trustees of Southern Illinois University, Springfield, IL (US);
Ashim Gupta, Springfield, IL (US);
Michael W. Neumeister, Springfield, IL (US);
Sohyung Cho, Clayton, MO (US);
Board of Trustees of Southern Illinois University, Springfield, IL (US);
Abstract
A syringe device for separating liquids of different densities is provided with a hollow syringe barrel, a perforated plunger seal with a seal hole, and a hollow plunging tube with a closed bottom with at least one tube hole. The perforated plunger seal has an outer perimeter that resides flush against an interior surface of the hollow syringe barrel. The tube hole is in operational relationship with the seal hole. Optionally, a relief hole is provided on a top portion of the hollow plunging tube to allow a user to create vacuum pressure as necessary.