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. 28, 2007
Filed:
May. 10, 2002
Applicants:
Eileen A. Kiefer, Pittsburgh, PA (US);
Mark Cavaliere, Pittsburgh, PA (US);
Roger P. Wolf, Butler, PA (US);
Paul A. Zeller, Pittsburgh, PA (US);
Klaus Schmidke, Berlin, DE;
Inventors:
Eileen A. Kiefer, Pittsburgh, PA (US);
Mark Cavaliere, Pittsburgh, PA (US);
Roger P. Wolf, Butler, PA (US);
Paul A. Zeller, Pittsburgh, PA (US);
Klaus Schmidke, Berlin, DE;
Assignee:
Mine Safety Appliances Company, Pittsburgh, PA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A62B 18/08 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention provides an air-purifying respirator facepiece with a removable, one-piece filter element connector. It also has a removable component housing in the lens as well as a nosecup without inhalation valves that prevents fogging of the portion of the lens used for viewing.