Patent US5572990A successfully refreshed from Google Patents.
US5572990A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Respiratory mask and microphone mount for use therein
Assignee: AEC RTS Sas
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Filing: 1995-05-31
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Granted: 1996-11-12
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Expires: 2015-05-31
Abstract
Abstract A respiratory mask with an inner mask for covering the mouth and nose. The inner mask includes an inhalation valve, an exhalation valve and a voice aperture. A microphone mount is removably attached above the voice aperture. Two microphones are attached with one oriented toward the mouth and the other oriented toward the inhalation valve. The directional patterns of the first and second microphones are respectively perpendicular and parallel to the inside of the microphone mount. The mount takes the form of a signal printed circuit and replaces the conventional voice diaphragm of the mask.
Inventors
- 👤 Florence Berlin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:07
CPC Classifications
A; A62; A62B; A62B18/00; A62B18/08
Claims Analysis
Total Claims: 36
Claim 1
Independent Claim
168 words
A respiratory mask having an inner mask for covering mouth and nose, wherein the inner mask has at least one inhalation valve, an exhalation valve and a voice aperture to be placed opposite the mouth and in which there is located in the inner mask at least one microphone connectable to a transceiver apparatus or an intercom, characterized in that, in the inner mask a microphone mount is removably attached over the voice aperture, on the inside of the microphone mount a first directional microphone is so attached that when the respiratory mask is worn the first directional microphone is positioned opposite the mouth and the first directional microphone has a directional pattern oriented substantially toward the mouth for picking up ambient noise and speech but favoring speech pick up, on the inside of the microphone mount a second directional microphone is attached and is spaced from the first microphone and has a second directional pattern oriented substantially toward the inhalation valve for picking up mainly ambient noise.
Claim 2
Dependent Claim
168 words
A respiratory mask having an inner mask for covering mouth and nose, wherein the inner mask has at least one inhalation valve, an exhalation valve and a voice aperture to be placed opposite the mouth and in which there is located in the inner mask at least one microphone connectable to a transceiver apparatus or an intercom, characterized in that, in the inner mask a microphone mount is removably attached over the voice aperture, on the inside of the microphone mount a first directional microphone is so attached that when the respiratory mask is worn the first directional microphone is positioned opposite the mouth and the first directional microphone has a directional pattern oriented substantially toward the mouth for picking up ambient noise and speech but favoring speech pick up, on the inside of the microphone mount a second directional microphone is attached and is spaced from the first microphone and has a second directional pattern oriented substantially toward the inhalation valve for picking up mainly ambient noise.
Claim 3
Dependent Claim
20 words
Respiratory mask according to claim 1, characterized in that the directional patterns of the microphones are perpendicular to each other.
Claim 4
Dependent Claim
35 words
Respiratory mask according to claim 2, characterized in that the directional pattern of the first microphone is perpendicular and the directional pattern of the second microphone is parallel to the inside of the microphone mount.
Claim 5
Dependent Claim
27 words
Respiratory mask according to claim 2, characterized in that the microphone mount is of circular shape and completely covers the voice aperture toward the inner mask cavity.
Claim 6
Dependent Claim
21 words
Respiratory mask according to claim 2, characterized in that the microphone mount replaces a voice diaphragm which conventionally covers voice aperture.
Claim 7
Dependent Claim
24 words
Respiratory mask according to claim 2, characterized in that the microphone mount is located over a voice diaphragm which conventionally covers the voice aperture.
Claim 8
Dependent Claim
72 words
A respiratory mask according to claim 2, wherein the microphone mount takes the form of a circular rigid plate dimensioned to replace a voice diaphragm which conventionally covers the voice aperture of the respiratory mask and that first and second directional microphones on the inside of the plate are located spaced apart and diametrically opposite to each other, the first anti second directional microphones having directional patterns being perpendicular to ,each other.
Claim 9
Dependent Claim
35 words
Respiratory mask according to claim 1, characterized in that the directional pattern of the first microphone is perpendicular and the directional pattern of the second microphone is parallel to the inside of the microphone mount.
Claim 10
Dependent Claim
27 words
Respiratory mask according to claim 8, characterized in that the microphone mount is of circular shape and completely covers the voice aperture toward the inner mask cavity.
Claim 11
Dependent Claim
21 words
Respiratory mask according to claim 8, characterized in that the microphone mount replaces a voice diaphragm which conventionally covers voice aperture.
Claim 12
Dependent Claim
24 words
Respiratory mask according to claim 8, characterized in that the microphone mount is located over a voice diaphragm which conventionally covers the voice aperture.
Claim 13
Dependent Claim
72 words
A respiratory mask according to claim 8, wherein the microphone mount takes the form of a circular rigid plate dimensioned to replace a voice diaphragm which conventionally covers the voice aperture of the respiratory mask and that first and second directional microphones on the inside of the plate are located spaced apart and diametrically opposite to each other, the first and second directional microphones having directional patterns being perpendicular to each other.
Claim 14
Dependent Claim
28 words
Respiratory mask according to claim 1, characterized in that the microphone mount is of circular shape and completely covers the voice aperture toward the inner mask cavity (36).
Claim 15
Dependent Claim
21 words
Respiratory mask according to claim 13, characterized in that the microphone mount replaces a voice diaphragm which conventionally covers voice aperture.
Claim 16
Dependent Claim
24 words
Respiratory mask according to claim 13, characterized in that the microphone mount is located over a voice diaphragm which conventionally covers the voice aperture.
Claim 17
Dependent Claim
72 words
A respiratory mask according to claim 13, wherein the microphone mount takes the form of a circular rigid plate dimensioned to replace a voice diaphragm which conventionally covers the voice aperture of the respiratory mask and that first and second directional microphones on the inside of the plate are located spaced apart and diametrically opposite to each other, the first and second directional microphones having directional patterns being perpendicular to each other.
Claim 18
Dependent Claim
21 words
Respiratory mask according to claim 1, characterized in that the microphone mount replaces a voice diaphragm which conventionally covers voice aperture.
Claim 19
Dependent Claim
72 words
A respiratory mask according to claim 17, wherein the microphone mount takes the form of a circular rigid plate dimensioned to replace a voice diaphragm which conventionally covers the voice aperture of the respiratory mask and that first and second directional microphones on the inside of the plate are located spaced apart and diametrically opposite to each other, the first and second directional microphones having directional patterns being perpendicular to each other.
Claim 20
Dependent Claim
24 words
Respiratory mask according to claim 1, characterized in that the microphone mount is located over a voice diaphragm which conventionally covers the voice aperture.
Claim 21
Dependent Claim
72 words
A respiratory mask according to claim 19, wherein the microphone mount takes the form of a circular rigid plate dimensioned to replace a voice diaphragm which conventionally covers the voice aperture of the respiratory mask and that first and second directional microphones on the inside of the plate are located spaced apart and diametrically opposite to each other, the first and second directional microphones having directional patterns being perpendicular to each other.
Claim 22
Dependent Claim
72 words
A respiratory mask according to claim 1, wherein the microphone mount takes the form of a circular rigid plate dimensioned to replace a voice diaphragm which conventionally covers the voice aperture of the respiratory mask and that first and second directional microphones on the inside of the plate are located spaced apart and diametrically opposite to each other, the first and second directional microphones having directional patterns being perpendicular to each other.
Claim 23
Dependent Claim
21 words
A respiratory mask according to claim 21, characterized in that the rigid plate is a printed circuit board with printed conductors.
Claim 24
Dependent Claim
33 words
A respiratory mask according to claim 22, characterized in that at least the two microphones and a supply cable connection and electronic components are connected to the conductors of the printed circuit board.
Claim 25
Dependent Claim
21 words
A respiratory mask according to claim 23, characterized in that the directional microphones are electrostatic miniature microphones having hypercardioid directional patterns.
Claim 26
Dependent Claim
50 words
A respiratory mask according to claim 23, characterized in that the microphones are so attached to the inside of the rigid plate that the directional pattern of the first directional microphone is perpendicular to the plate and the directional pattern of the second directional microphone is parallel to the plate.
Claim 27
Dependent Claim
20 words
A respiratory mask according to claim 23, characterized in that the rigid plate is made of glass fiber reinforced epoxy.
Claim 28
Dependent Claim
21 words
A respiratory mask according to claim 22, characterized in that the directional microphones are electrostatic miniature microphones having hypercardioid directional patterns.
Claim 29
Dependent Claim
50 words
A respiratory mask according to claim 22, characterized in that the microphones are so attached to the inside of the rigid plate that the directional pattern of the first directional microphone is perpendicular to the plate and the directional pattern of the second directional microphone is parallel to the plate.
Claim 30
Dependent Claim
20 words
A respiratory mask according to claim 22, characterized in that the rigid plate is made of glass fiber reinforced epoxy.
Claim 31
Dependent Claim
21 words
A respiratory mask according to claim 21, characterized in that the directional microphones are electrostatic miniature microphones having hypercardioid directional patterns.
Claim 32
Dependent Claim
50 words
A respiratory mask according to claim 30, characterized in that the microphones are so attached to the inside of the rigid plate that the directional pattern of the first directional microphone is perpendicular to the plate and the directional pattern of the second directional microphone is parallel to the plate.
Claim 33
Dependent Claim
20 words
A respiratory mask according to claim 30, characterized in that the rigid plate is made of glass fiber reinforced epoxy.
Claim 34
Dependent Claim
50 words
A respiratory mask according to claim 21, characterized in that the microphones are so attached to the inside of the rigid plate that the directional pattern of the first directional microphone is perpendicular to the plate and the directional pattern of the second directional microphone is parallel to the plate.
Claim 35
Dependent Claim
20 words
A respiratory mask according to claim 33, characterized in that the rigid plate is made of glass fiber reinforced epoxy.
Claim 36
Dependent Claim
20 words
A respiratory mask according to claim 21, characterized in that the rigid plate is made of glass fiber reinforced epoxy.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1999-11-12 | 2000-05-13 | 2000-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-11-12 | 2004-05-13 | 2004-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-11-12 | 2008-05-13 | 2008-11-12 | $7700.00 | Window Closed / Lapsed |