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:
Oct. 02, 1990
Filed:
Mar. 18, 1987
James E Nelson, Williamsville, NY (US);
Valentine A Castro, Pasadena, CA (US);
Noemi Esparza, Pasadena, CA (US);
Figgie International, Inc., Willoughby, OH (US);
Abstract
An improved half-face mask assembly (10) which can be easily donned and doffed. The assembly includes a hard shell (12), a rubber-like face seal (14), a head harness assembly (16) and two harness anchors and adjusters (18). These parts can be readily assembled or disassembled. Face seals of differing sizes may be assembled to the hard shell. An improved seal is provided between a hard shell (12) and an associated rubber-like face seal (14). A two point head harness suspension system is typically provided althrough an optional neck strap assembly may be utilized with the half-face mask assembly. In addition, a novel one piece harness anchor and adjuster is disclosed.