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 Title: |
US3665122:
HEARING AID CONSTRUCTION UTILIZING A VENTED TRANSDUCER COMPARTMENT FOR REDUCING FEEDBACK
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| Country: |
US United States of America
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| Inventor: |
Weiss, Erwin M.; Chicago, IL
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| Assignee: |
Beltone Electronics Corporation
other patents from BELTONE ELECTRONICS CORPORATION (59090) (approx. 56)
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| Published / Filed: |
1972-05-23
/ 1969-11-19
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| Application Number: |
US1969000878194
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| IPC Code: |
Advanced:
G02C 11/06;
IPC-7:
G02C 11/06;
H04R 25/00;
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| ECLA Code: |
H04R25/55B; G02C11/06; H04R25/45D;
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| U.S. Class: |
Current:
381/326;
381/327;
Original:
179/107.BC;
179/107.S;
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| Field of Search: |
179/107 R,107 BC,107 S,107 H
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| Priority Number: |
| 1969-11-19 |
US1969000878194 |
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| Abstract: |
A hearing aid construction in which the rigid hearing aid case is divided into at least two closely spaced compartments with a microphone mounted in one compartment and a output transducer mounted in the second compartment and further comprising means for venting acoustical pressure waves within the second compartment to substantially reduce the acoustical coupling between the output transducer and the microphone positioned nearby within the rigid case.
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| Attorney, Agent or Firm: |
Molinare, Allegretti, Newitt & Witcoff ;
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| Primary / Asst. Examiners: |
Claffy, Kathleen H.; Kundert, Thomas L.
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| Parent Case: |
This is a continuation-in-part of application, Ser. No. 573,917, filed Aug. 22, 1966 and now abandoned, and relates generally to arrangements for amplifying sound and, more particularly, to an improved hearing aid construction.
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| Family: |
None
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| Claim |
What is claimed is:
1. In a bone conduction hearing aid of the type comprising a compact rigid case having at least one internal partition for dividing the case interior into at least two compartments, a microphone mounted in a first compartment, a bone conduction receiver mounted in a second compartment, said microphone and said bone conduction receiver being positioned in close proximity to each other within said case adjacent one of the ears of the wearer, an electrical signal amplifier having an input connected to said microphone and an output connected to said receiver, and venting means for venting acoustical pressure waves within said second compartment to substantially reduce acoustical coupling between said bone conduction receiver and said microphone within said case, said venting means comprising an elongated opening in said case communicating at one end with the air outside the case and at the other end with the interior of said second compartment.
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| Background / Summary: |
Show background / summary
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| Drawing Descriptions: |
Show drawing descriptions
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| Description: |
Show description
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| Forward References: |
Show 36 U.S. patent(s) that reference this one
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