Patent US3787643A successfully refreshed from Google Patents.
US3787643A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hearing aid device
Assignee: American Danish Oticon AS
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Filing: 1972-11-07
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Granted: 1974-01-22
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Expires: 1992-11-07
Abstract
Abstract The present invention relates to a hearing aid device having a sound receiving transducer with an acoustic inlet in the form of a relatively narrow aperture and means for locating said sound receiving transducer in a position relatively to the head of the user with the acoustic inlet being located substantially at a zone of the ear where increased sound pressure is built up in response to sound signals received. The signals from the signal receiving transducer are through suitable adjustable amplification means routed to the other ear and processed in a sound reproducing transducer from which the sound signals are supplied to the other ear.
Inventors
- 👤 T Nielsen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 07:18
CPC Classifications
H; H04; H04R; H04R25/00; H04R25/55; H04R25/552; H04R25/40; H04R25/402; H04R2225/00; H04R2225/53; H04R2410/00; H04R2410/07
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
181 words
A hearing aid device comprising an acoustic probe for supplying sound signals to a sound receiving transducer thereof in which the sound receiving transducer is adapted to be mounted on the head of the user in a position of use at one ear which is open to permit sound signals to enter into and to build up an increased sound pressure in the concha cavity and the ear canal thereof, said acoustic probe being in the form of a tubular member having one end thereof coupled to said sound receiving transducer, the opposite end thereof defining a relatively narrow entrance, said acoustic probe being sUpported by said sound receiving transducer such that said sound signals enter said concha cavity and said ear canal substantially unobstructed and said narrow entrance is positioned in the concha cavity of the ear when said sound receiving transducer is placed in its position of use to permit the increased sound pressure signals to enter said narrow entrance as amplified sound signals, whereby amplified sound signals are coupled through said acoustic probe to said sound receiving transducer.
Claim 2
Dependent Claim
181 words
A hearing aid device comprising an acoustic probe for supplying sound signals to a sound receiving transducer thereof in which the sound receiving transducer is adapted to be mounted on the head of the user in a position of use at one ear which is open to permit sound signals to enter into and to build up an increased sound pressure in the concha cavity and the ear canal thereof, said acoustic probe being in the form of a tubular member having one end thereof coupled to said sound receiving transducer, the opposite end thereof defining a relatively narrow entrance, said acoustic probe being sUpported by said sound receiving transducer such that said sound signals enter said concha cavity and said ear canal substantially unobstructed and said narrow entrance is positioned in the concha cavity of the ear when said sound receiving transducer is placed in its position of use to permit the increased sound pressure signals to enter said narrow entrance as amplified sound signals, whereby amplified sound signals are coupled through said acoustic probe to said sound receiving transducer.
Claim 3
Dependent Claim
57 words
A hearing aid device, as claimed in claim 1, further including a sound reproducer located adjacent to the opposite ear of the user including means for rendering sound signals from said sound receiving transducer audible on said opposite ear; and means including adjustable amplification means for coupling signals from said sound receiving transducer to said sound reproducer.
Claim 4
Dependent Claim
39 words
A hearing aid device, as claimed in claim 1, wherein the opposite end of said tubular member defining said acoustic probe is of such a length that by manipulating said narrow entrance can be positioned in the ear canal.
Claim 5
Dependent Claim
66 words
A hearing aid device, as claimed in claim 1, wherein said tubular member is included in a structure comprising a skeleton type ear mould which is moulded to fit into the outer ear of the user and which is provided with an aperture for allowing sound to enter through the ear mould into the ear and be received through said narrow entrance of said tubular member.
Claim 6
Dependent Claim
41 words
A hearing aid device, as claimed in claim 4, wherein said tubular member extends through the ear mould to provide for the narrow entrance to be located in the ear canal when the ear mould is in its position of use.
Claim 7
Dependent Claim
64 words
A hearing aid device, as claimed in claim 1, further including a second acoustic probe in the form of a tubular member, one end of said tubular member being coupled to said sound reproducer and the opposite end thereof defining an acoustic inlet in the form of a relatively narrow aperture which is located at least in the concha cavity of said opposite ear.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-01-21 | 1977-07-23 | 1978-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-21 | 1981-07-23 | 1982-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-21 | 1985-07-23 | 1986-01-22 | $7700.00 | Window Closed / Lapsed |