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. 12, 2019
Filed:
Mar. 05, 2010
Applicants:
Robert F. Tumminaro, Elk Grove Village, IL (US);
Christine A. Fredricks, Mount Prospect, IL (US);
Frank K. Villari, Oak Park, IL (US);
Inventors:
Robert F. Tumminaro, Elk Grove Village, IL (US);
Christine A. Fredricks, Mount Prospect, IL (US);
Frank K. Villari, Oak Park, IL (US);
Assignee:
Illinois Tool Works Inc., Glenview, IL (US);
Primary Examiner:
Int. Cl.
CPC ...
A61M 39/24 (2006.01);
U.S. Cl.
CPC ...
A61M 39/24 (2013.01); Y10T 137/7879 (2015.04);
Abstract
A one-way check valve in an IV system set is provided with structural features to capture contaminant particles and inhibit the particles from adversely impacting the performance of the check valve. A screen can be provided upstream of the valve seat and the valve may be provided with flow channels for accumulating the particles. Modifications of the valve seat provide open volumes for accumulating contaminants.