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:
Feb. 27, 2018
Filed:
May. 06, 2014
Applicant:
Illinois Tool Works Inc., Glenview, IL (US);
Inventors:
Jan W. M. Mijers, Holland, NL;
Colm M. Carmody, Co. Kerry, IE;
Assignee:
ILLINOIS TOOL WORKS INC., Glenview, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61M 39/24 (2006.01); A61M 5/168 (2006.01); A61B 5/15 (2006.01); A61M 39/22 (2006.01);
U.S. Cl.
CPC ...
A61M 5/16813 (2013.01); A61B 5/150221 (2013.01); A61B 5/150229 (2013.01); A61B 5/150992 (2013.01); A61M 39/24 (2013.01); A61M 39/223 (2013.01); A61M 2039/242 (2013.01); A61M 2039/246 (2013.01); A61M 2039/2446 (2013.01);
Abstract
A bidirectional valve for medical use or the like provides different threshold opening pressures in different directions using a valve seat and flapper construction providing improved characterization in operation in contrast to cross-slit valves often used for bidirectional operation. A valve disk supported in a central annular region provides movable portions engaging in valve seats at a peripheral region and a central region.