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:
Dec. 08, 2009
Filed:
Apr. 26, 2004
Applicants:
Jason M. Patterson, Monroe, NC (US);
Samuel C. Shomstein, Charlotte, NC (US);
Inventors:
Jason M. Patterson, Monroe, NC (US);
Samuel C. Shomstein, Charlotte, NC (US);
Assignee:
STI Licensing Corp., Beachwood, OH (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A62B 7/00 (2006.01); B63C 11/02 (2006.01); B63C 11/18 (2006.01);
U.S. Cl.
CPC ...
Abstract
A breathing regulator having a non-linear positive pressure spring is provided for use in an air supplied respirator. The regulator includes a housing formed from a regulator body and a cover sub-assembly, a diaphragm assembly, and the non-linear spring. The spring holds the diaphragm assembly closed and resists the force applied by air pressure during exhalation by the user, but collapses once a sufficient amount of force has been applied, thereby permitting the user to exhale freely.