US3852540A
Expired / Lapsed
US
⏱️ 0.0 years remaining
In ear hearing apparatus
Assignee: AG fur ELEKTROAKUSTIK CH
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Filing: 1972-12-13
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Granted: 1974-12-03
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Expires: 1992-12-13
Abstract
Abstract A hearing apparatus equipped with an output transducer, a voltage source, an amplifier, an input transducer capable of magnetic or electrical reception and a gain control. There is provided an elongate bipartite housing constructed to be inserted into the auditory or hearing channel. In the lengthwise direction of the housing there are arranged adjacent to one another the output transducer, the voltage source, the amplifier, the input transducer and the gain control. The output transducer is arranged in a first part of the housing, the amplifier, the input transducer and the gain control are arranged in a second part of the housing which is detachably connected with the first part of the housing. The voltage source is arranged between the output transducer and the amplifier at the region of the connection location of the housing parts.
Inventors
- 👤 B Diethelm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 04:51
CPC Classifications
H; H04; H04R; H04R25/00; H04R25/60; H04R25/602; H04R25/609; H04R25/65; H04R25/652
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
185 words
A hearing apparatus arranged to be inserted into the auditory channel of the user, said apparatus including: a. a substantially elongate two-part housing; b. means for releasably interconnecting the two portions of said housing; c. an output transducer arranged in a first portion of said housing; d. an input transducer capable of magnetic and electrical reception, an amplifier and a gain control arranged in the second portion of said housing; e. a voltage source; f. means for receiving and retaining said voltage source in said first housing portion between said output transducer and said amplifier when said portions of said housing are releasably connected at the region of interconnection; g. said output transducer having a pair of input terminals; h. said amplifier having contacts; and i. said retaining means being provided with two contact elements which are fixedly connected, respectively with the two input terminals of said output transducer and releasably connected with the contacts of said amplifier, one such contact element coming into contact with one pole of said voltage source whereas the other pole of said voltage source is coupled with the amplifier.
Claim 2
Dependent Claim
185 words
A hearing apparatus arranged to be inserted into the auditory channel of the user, said apparatus including: a. a substantially elongate two-part housing; b. means for releasably interconnecting the two portions of said housing; c. an output transducer arranged in a first portion of said housing; d. an input transducer capable of magnetic and electrical reception, an amplifier and a gain control arranged in the second portion of said housing; e. a voltage source; f. means for receiving and retaining said voltage source in said first housing portion between said output transducer and said amplifier when said portions of said housing are releasably connected at the region of interconnection; g. said output transducer having a pair of input terminals; h. said amplifier having contacts; and i. said retaining means being provided with two contact elements which are fixedly connected, respectively with the two input terminals of said output transducer and releasably connected with the contacts of said amplifier, one such contact element coming into contact with one pole of said voltage source whereas the other pole of said voltage source is coupled with the amplifier.
Claim 3
Dependent Claim
53 words
The hearing apparatus as defined in claim 1, wherein the second housing part is provided with ridge means, the ends of said contact elements being constructed as protruding extended portions which engage in a bayonet-closure like fashion behind the ridge means of the second housing part and contact the contacts of the amplifier.
Claim 4
Dependent Claim
37 words
The hearing apparatus as defined in claim 1, wherein the retaining device is provided with threading and the first housing part is connected by means of the threading of the retaining device with the second housing part.
Claim 5
Dependent Claim
69 words
The hearing apparatus as set forth in claim 1, and; a. said amplifier comprises a support plate in the form of a printed circuit, one face of said support plate being provided with contacts which come into contact with said contacts of said retaining device and said voltage source; and b. components of said amplifier being arranged about the periphery of said support plate on the other side thereof.
References Cited (Backward Citations)
US2595489A
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US2959645A
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US2971065A
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US3055990A
Cited
US3265819A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-12-02 | 1978-06-03 | 1978-12-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-02 | 1982-06-03 | 1982-12-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-02 | 1986-06-03 | 1986-12-03 | $7700.00 | Window Closed / Lapsed |