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:
Aug. 23, 2022
Filed:
Sep. 04, 2020
Applicant:
Fisher & Paykel Healthcare Limited, Auckland, NZ;
Inventors:
Mark John Arrowsmith, Auckland, NZ;
Andrew John Partington, Auckland, NZ;
Sophia Adele Johnson, Auckland, NZ;
Assignee:
Fisher & Paykel Healthcare Limited, Auckland, NZ;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16K 15/14 (2006.01); A61M 16/20 (2006.01); F16K 31/122 (2006.01); F16K 31/124 (2006.01); F16K 31/12 (2006.01); A61M 16/06 (2006.01); A61M 16/08 (2006.01); A61M 39/24 (2006.01);
U.S. Cl.
CPC ...
A61M 16/208 (2013.01); A61M 16/20 (2013.01); F16K 15/145 (2013.01); F16K 31/12 (2013.01); F16K 31/122 (2013.01); F16K 31/1221 (2013.01); F16K 31/1245 (2013.01); A61M 16/06 (2013.01); A61M 16/0683 (2013.01); A61M 16/0816 (2013.01); A61M 2039/246 (2013.01); A61M 2039/2433 (2013.01); A61M 2205/42 (2013.01); Y10T 137/784 (2015.04); Y10T 137/7843 (2015.04);
Abstract
A valve with an internal member is disclosed which allows exhaled carbon dioxide to escape from a breathing circuit when the circuit gas pressure drops below a threshold pressure. The valve operates by occluding one or more ports under a relatively high pressure and opening the one or more ports under a relatively low pressure. The internal member is attached to the body of the valve at two or more locations on the internal member. The internal member moves in a direction perpendicular to the gas flow through the valve.