Patent US4845760A successfully refreshed from Google Patents.
US4845760A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electro-acoustic transducer arranged within the handset of a telephone instrument
Assignee: Siemens AG
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Filing: 1986-10-14
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Granted: 1989-07-04
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Expires: 2006-10-14
Abstract
Abstract An electro-acoustic transducer is arranged within the handset of a telephone instrument. The transducer is elastically seated and is seated at a distance from the walls of the handset so that noises caused by the handset are not transmitted onto the transducer.
Inventors
- 👤 Erwin Awakowicz
- 👤 Kurt Schiller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 14:27
CPC Classifications
H; H04; H04R; H04R1/00; H04R1/08; H04M; H04M1/00; H04M1/02; H04M1/03; H04R17/00
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
115 words
A transducer apparatus having a housing containing a transducer having a cylindrical cross-section and a cylindrical wall, comprising: a rubber jacket having a cylindrical wall surrounding said cylindrical wall of said transducer and having a plurality of webs extending from an outside surface of said cylindrical wall of said rubber jacket and having a peripheral sealing lip on a first end of said rubber jacket, said sealing lip contacting said housing, said webs being spaced apart around a circumference of said rubber jacket; each of said webs having a stop integral therewith on a free end thereof for engaging means for providing a receptacle, said means for providing a receptacle being attached to said housing.
Claim 2
Dependent Claim
115 words
A transducer apparatus having a housing containing a transducer having a cylindrical cross-section and a cylindrical wall, comprising: a rubber jacket having a cylindrical wall surrounding said cylindrical wall of said transducer and having a plurality of webs extending from an outside surface of said cylindrical wall of said rubber jacket and having a peripheral sealing lip on a first end of said rubber jacket, said sealing lip contacting said housing, said webs being spaced apart around a circumference of said rubber jacket; each of said webs having a stop integral therewith on a free end thereof for engaging means for providing a receptacle, said means for providing a receptacle being attached to said housing.
Claim 3
Dependent Claim
134 words
Means for mounting a transducer in a handset, comprising: a rubber jacket adapted to surround a cylindrical wall of said transducer, said rubber jacket including a peripheral sealing lip extending from one axial end thereof to engage a surface of said handset and to surround said transducer at a sound wave receptor portion thereof, said rubber jacket also including a flange located at another axial end thereof and projecting radially inward from said jacket for engaging a surface of said transducer, and said rubber jacket having a plurality of webs extending radially outward from an outside surface of said rubber jacket and being spaced apart around a circumference of said rubber jacket, each web having a stop integral therewith on a free end thereof for operatively engaging an appropriately formed receptacle of said handset.
Claim 4
Dependent Claim
134 words
Means for mounting a transducer in a handset, comprising: a rubber jacket adapted to surround a cylindrical wall of said transducer, said rubber jacket including a peripheral sealing lip extending from one axial end thereof to engage a surface of said handset and to surround said transducer at a sound wave receptor portion thereof, said rubber jacket also including a flange located at another axial end thereof and projecting radially inward from said jacket for engaging a surface of said transducer, and said rubber jacket having a plurality of webs extending radially outward from an outside surface of said rubber jacket and being spaced apart around a circumference of said rubber jacket, each web having a stop integral therewith on a free end thereof for operatively engaging an appropriately formed receptacle of said handset.
References Cited (Backward Citations)
US2757247A
Cited
FR1152433A
Cited
US3156788A
Cited
US3257516A
Cited
DE1437433A1
Cited
US3383475A
Cited
DE2440985A1
Cited
JPS5541011A
Cited
DE3107308A1
Cited
US4528426A
Cited
CA1199138A
Cited
GB2152784A
Cited
DE3402639A1
Cited
DE3420562A1
Cited
JPH0674857A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-07-03 | 1993-01-02 | 1993-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-07-03 | 1997-01-02 | 1997-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-07-03 | 2001-01-02 | 2001-07-04 | $7700.00 | Window Closed / Lapsed |