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:
Apr. 20, 1999
Filed:
Oct. 09, 1997
Applicant:
Inventor:
Richard G Campbell, Corona, CA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B / ;
U.S. Cl.
CPC ...
156 731 ; 156290 ; 1563084 ; 264445 ;
Abstract
A sonic welded gas mask and the process for fabricating the mask. The facepiece of the mask provides apertures, appropriately shaped and dimensioned to receive gas mask components for sealing therein. The elastomeric material of the facepiece of the mask is captured between sealing elements and secured therebetween by a sonic welding process. The method of fabrication described attaches and positively seals the elements into the mask. Direct voice communication and alternatively, electronic voice communication may be provided between a user and the external environment.