Patent US4977976A successfully refreshed from Google Patents.
US4977976A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Connector for hearing air earmold
Assignee: Microsonic Inc
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Filing: 1988-09-27
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Granted: 1990-12-18
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Expires: 2008-09-27
Abstract
Abstract The present invention proves an elbow shaped connector for connecting flexible sound conduction tubing from a hearing aid to a conventional earmold. The sound bore of the connector has an increasing diameter to improve high frequency response. This increase in diameter may be gradual, over the length of the connector, or it may occur abruptly at some point within the connector.
Inventors
- 👤 Miklos Major
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 19:19
CPC Classifications
H; H04; H04R; H04R25/00; H04R25/48; H04R25/60; H04R25/607; H04R25/65; H04R25/658
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
85 words
A connector for connecting sound conduction tubing from a hearing aid to a sound conduction bore of an earmold comprising: an elbow shaped member having a tubing receiving section and an earmold connection section; said elbow shaped member having a single internal unobstructed sound transmitting bore between said tubing receiving section and said earmold connection section, said sound transmitting bore having a diameter which increases from a first diameter portion at said tubing receiving section to a second diameter portion at said earmold connection section.
Claim 2
Dependent Claim
85 words
A connector for connecting sound conduction tubing from a hearing aid to a sound conduction bore of an earmold comprising: an elbow shaped member having a tubing receiving section and an earmold connection section; said elbow shaped member having a single internal unobstructed sound transmitting bore between said tubing receiving section and said earmold connection section, said sound transmitting bore having a diameter which increases from a first diameter portion at said tubing receiving section to a second diameter portion at said earmold connection section.
Claim 3
Dependent Claim
26 words
A connector according to claim 1 wherein the diameter of said sound transmitting bore gradually increases from said first diameter portion to said second diameter portion.
Claim 4
Dependent Claim
26 words
A connector according to claim 1 wherein the diameter of said sound transmitting bore abruptly increases from said first diameter portion to said second diameter portion.
Claim 5
Dependent Claim
22 words
A connector according to claim 1 wherein said first diameter portion is equal to an internal diameter of said sound conduction tubing.
Claim 6
Dependent Claim
21 words
A connector according to claim 1 wherein said second diameter portion is equal to a diameter of said sound conduction bore.
References Cited (Backward Citations)
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Cited
US3813499A
Cited
US4311206A
Cited
US4381830A
Cited
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Cited
US4722556A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-12-17 | 1994-06-18 | 1994-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-12-17 | 1998-06-18 | 1998-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-12-17 | 2002-06-18 | 2002-12-18 | $7700.00 | Window Closed / Lapsed |