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. 17, 2015
Filed:
Jun. 24, 2011
Carsten Leuschner, Schonefeld, DE;
Klaus Schmidtke, Berlin, DE;
Michael Horn, Berlin, DE;
Christopher L. Prete, Cranberry Township, PA (US);
Marco Tekelenburg, Zelienople, PA (US);
Carsten Leuschner, Schonefeld, DE;
Klaus Schmidtke, Berlin, DE;
Michael Horn, Berlin, DE;
Christopher L. Prete, Cranberry Township, PA (US);
Marco Tekelenburg, Zelienople, PA (US);
MSA Technology, LLC., Cranberry Township, PA (US);
Abstract
A respiration system includes a regulator including an inlet for connection to a source of pressurized gas and an outlet for delivery of the gas to the user, and a respiration facepiece for use in connection with the regulator including an interface removably attachable to the regulator, at least one seal system adapted to form a sealing engagement with the face of a user, an inhalation port in fluid connection with the regulator interface and with the facepiece interior, an inhalation check valve in fluid connection between the inhalation port and the facepiece interior; an exhalation port in fluid connection with the facepiece; an exhalation check valve in fluid connection with the exhalation port; and an ambient port separate from the inhalation port and from the exhalation port, which is in fluid connection with the facepiece interior without an intervening check valve.