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 11:12
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.
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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) | 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 |