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:
Jan. 12, 1988
Filed:
Aug. 21, 1986
Applicant:
Inventors:
Reinhard Bolnberger, Vienna, AT;
Werner Fidi, Baden, AT;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A62B / ;
U.S. Cl.
CPC ...
12820119 ;
Abstract
A breathing mask includes a carrier which has an inhalation passage and an exhalation passage and a passage over which a speaking diaphragm is extended for speech transmission from the interior of the mask to the exterior. In accordance with the invention an electrostatic transducer has a moving part which is coupled directly to the speaking diaphragm to provide for improved speech transmission.