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. 21, 1987
Filed:
Jun. 11, 1985
Applicant:
Inventor:
David G Curry, Bayou La Batre, AL (US);
Assignee:
Other;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H04R / ; A61B / ;
U.S. Cl.
CPC ...
181129 ; 181135 ; 381187 ;
Abstract
Protection apparatus for excluding undesirable noise from the eardrum and inner ear of a user. The disclosed apparatus includes an evacuated, transmission medium-free, cavity for attenuating the noise energy. Plural arrangements of the evacuated cavity between the eardrum and noise environ are included. Uses of the disclosed protection apparatus in several military and industrial applications are described, including applications wherein communication with the protection user is needed.