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:
Mar. 17, 2015
Filed:
Sep. 23, 2013
Applicant:
Scientific Plastic Products, Inc., Oceanside, CA (US);
Inventors:
Samuel A. Ellis, Oceanside, CA (US);
Kishan G. Hingorani, Oceanside, CA (US);
Assignee:
Scientific Plastic Products, Inc., Oceanside, CA (US);
Primary Examiner:
Int. Cl.
CPC ...
B01D 33/00 (2006.01); G01N 1/10 (2006.01); B01D 33/01 (2006.01); B01L 3/00 (2006.01); G01N 1/40 (2006.01);
U.S. Cl.
CPC ...
B01D 33/0125 (2013.01); B01L 3/502 (2013.01); B01L 3/5021 (2013.01); B01L 2300/0681 (2013.01); B01L 2300/0832 (2013.01); B01L 2400/0478 (2013.01); G01N 2001/4088 (2013.01);
Abstract
An apparatus filters particles from small volumes of liquid in a tubular vial having an open top and closed bottom with a tubular plunger sliding in the vial to force liquid through a filter at the end of the plunger and into a cavity in the plunger. The filter is held by a cap placed over the end of the plunger. The vial's bottom has an upward extending protrusion mating with a conforming recess in the cap to direct liquid to the protraction and filter as the cap abuts the bottom of the vial. Channels in the bottom help direct liquid flow.