Patent US3923119A successfully refreshed from Google Patents.
US3923119A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sound pressure box
Assignee: Individual
•
Filing: 1974-01-03
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Granted: 1975-12-02
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Expires: 1994-01-03
Abstract
Abstract A sound pressure box for testing hearing aids and other devices is provided with a support member having a reference area onto which the hearing aid or device to be tested is disposed. A support frame for the sound-generating means is positioned within a bottom section of the box at about a forty five degree angle so that the axis of the sound-generating means is not coincident with the reference area.
Inventors
- 👤 George Joseph Frye
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 10:04
CPC Classifications
H; H04; H04R; H04R25/00; H04R25/30
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
87 words
A sound pressure box comprising: a top section; a bottom section; means connecting said top section and said bottom section together; sound-absorbing material disposed in said top section and said bottom section; device-holding means mounted in said bottom section; mounting means disposed in said bottom section extending between an upper end of said bottom section and an opposed inner end thereof; and sound-generating means mounted on said mounting means so that the axis thereof is at an angle with respect to the vertical axis of said box.
Claim 2
Dependent Claim
87 words
A sound pressure box comprising: a top section; a bottom section; means connecting said top section and said bottom section together; sound-absorbing material disposed in said top section and said bottom section; device-holding means mounted in said bottom section; mounting means disposed in said bottom section extending between an upper end of said bottom section and an opposed inner end thereof; and sound-generating means mounted on said mounting means so that the axis thereof is at an angle with respect to the vertical axis of said box.
Claim 3
Dependent Claim
18 words
A sound-pressure box according to claim 1 wherein said mounting means is disposed at about a 45* angle.
Claim 4
Dependent Claim
27 words
A sound pressure box according to claim 1 wherein said mounting means has its inner end spaced from said opposed inner end to provide a space therebetween.
Claim 5
Dependent Claim
26 words
A sound pressure box according to claim 1 wherein said mounting means is secured to opposite sides of said bottom section to stiffen said opposite sides.
Claim 6
Dependent Claim
26 words
A sound pressure box according to claim 1 wherein said device holding means has a dished area in which a device to be tested is disposed.
Claim 7
Dependent Claim
27 words
A sound pressure box according to claim 5 wherein said dished area is provided with a reference area at which the device to be tested is disposed.
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) | 1978-12-01 | 1979-06-02 | 1979-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-01 | 1983-06-02 | 1983-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-01 | 1987-06-02 | 1987-12-02 | $7700.00 | Window Closed / Lapsed |