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:
Jul. 12, 1983
Filed:
Jun. 11, 1981
Applicant:
Inventor:
Lawrence K Baker, Gate City, VA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04R / ;
U.S. Cl.
CPC ...
181135 ;
Abstract
A resonant earmold for amplifying selected frequencies of the sound signal introduced into the earmold. The path for sound through the earmold includes transversely disposed, off-axis elongated chamber sections (24,25), the various sections functioning as a single acoustic chamber. Interchangeable inserts (30,50) of different dimensions are used, on a trial and error basis, for changing the dimensions of at least one of the sections for fine tuning the sound characteristics of the earmold to best match the hearing aid performance characteristics with the needs of the user.