US4081628A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Microphone, particularly for body sounds, with slip coupling to the transducer element
Assignee: Individual
•
Filing: 1976-12-01
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Granted: 1978-03-28
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Expires: 1996-12-01
Abstract
Abstract A microphone housing includes an electromechanical transducer element. An interior diaphragm is mounted in the housing. A slip coupling connects the interior diaphragm to the transducer element for transmitting forces from the former to the latter. An exterior diaphragm is mounted in the housing and defines together with the interior diaphragm an intermediate coupling space through which vibrations of the exterior diaphragm are transmitted to the interior diaphragm.
Inventors
- 👤 Rolf Neusel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 12:07
CPC Classifications
H; H04; H04R; H04R1/00; H04R1/46; A; A61; A61B; A61B7/00; A61B7/02; A61B7/04
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
83 words
A microphone, particularly for picking up body sounds, underwater sounds and air-transmitted sounds, comprising a microphone housing; an electromechanical transducer element mounted in the housing; an interior diaphragm mounted in the housing; a slip coupling connecting the interior diaphragm to the transducer element for transmitting forces from the former to the latter; an exterior diaphragm mounted in the housing and defining together with the interior diaphragm an intermediate coupling space through which vibrations of the exterior diaphragm are transmitted to the interior diaphragm.
Claim 2
Dependent Claim
83 words
A microphone, particularly for picking up body sounds, underwater sounds and air-transmitted sounds, comprising a microphone housing; an electromechanical transducer element mounted in the housing; an interior diaphragm mounted in the housing; a slip coupling connecting the interior diaphragm to the transducer element for transmitting forces from the former to the latter; an exterior diaphragm mounted in the housing and defining together with the interior diaphragm an intermediate coupling space through which vibrations of the exterior diaphragm are transmitted to the interior diaphragm.
Claim 3
Dependent Claim
19 words
The microphone defined in claim 1, the housing including passage means connecting the coupling space to the ambient atmosphere.
Claim 4
Dependent Claim
30 words
The microphone defined in claim 1, the housing including passage means connecting the coupling space to the space adjoining that side of the interior diaphragm not facing the coupling space.
Claim 5
Dependent Claim
36 words
A microphone defined in claim 1, the housing including passage means connecting the coupling space to the ambient atmosphere and also to the space adjoining that side of the interior diaphragm not facing the coupling space.
Claim 6
Dependent Claim
15 words
The microphone defined in claim 1, the microphone housing being comprised of electrically conductive material.
Claim 7
Dependent Claim
13 words
The microphone defined in claim 1, the transducer element being a piezoelectric element.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-03-27 | 1981-09-26 | 1982-03-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-03-27 | 1985-09-26 | 1986-03-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-03-27 | 1989-09-26 | 1990-03-28 | $7700.00 | Window Closed / Lapsed |