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:
Dec. 03, 1985
Filed:
Dec. 02, 1983
Richard L Goode, Los Altos, CA (US);
Innovative Hearing Corporation, San Francisco, CA (US);
Abstract
An acoustical small hearing aid designed to be worn in the concha of the auricle and made of thin-walled plastic, metal, or rubber. This invention modifies the normal conchal resonance and combines it with the ear canal resonance to shift the normal sound pressure gain of 15 to 20 dB at the tympanic membrane downward from 2600-3000 Hz to 1500-2000 Hz dB, or lower, thus providing significant sound amplification for persons with mild high-frequency hearing loss. The invention accomplishes these goals by providing a thin, hollow shell that fits snugly into the auricle and concha of the external ear so as to enclose a volume of air within the concha. An opening in the shell lets sound waves into this air volume. The ratio of the air volume and the area of the opening control the peak frequency of amplification desired, the amplitude, and bandwidth of amplification, and must be kept between 1/2 and 1/15.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile