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. 28, 2004
Filed:
Jul. 09, 2002
Applicant:
Inventor:
Patrice Martinez, Le Perray en Yvelines, FR;
Assignee:
Intertechnique, Plaisir Cedex, FR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61M 1/600 ;
U.S. Cl.
CPC ...
A61M 1/600 ;
Abstract
A demand regulator with air dilution for regulating the pressure and flow of a respiratory gas comprises an inlet for additional gas and an outlet leading to a respiratory mask, and also dilution means. Control means switch a supply of pressurized additional gas between at least two passages. At least one of these passages corresponds to an economy flow and has a restricted cross section for limiting the flow of additional gas transmitted to the inlet. The other passage has a cross section which is such that the additional gas has a maximum flow in order to supply the user with additional gas in a physiologically sufficient manner.