US4237350A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Telephone handset
Assignee: Alcatel Lucent NV
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Filing: 1979-02-09
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Granted: 1980-12-02
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Expires: 1999-02-09
Abstract
Abstract The handset consists of two parts, i.e. the smooth upper part and the lower part containing the receptacles for the electro-acoustic transducers. Considering that the various makes of transducers may vary in both their diameters and electric terminals, the annular transducer receptacle is stepped on its inside. For transducers with soldering or plug terminals contact springs are not needed. For transducers having contact surfaces, contact springs are retrofitable in a simple way.
Inventors
- 👤 Hugo Ruzic
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 04:18
CPC Classifications
H; H04; H04M; H04M1/00; H04M1/02; H04M1/03
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
62 words
A telephone handset with a two-part plastic housing divided in the longitudinal direction, comprising: lower part means having receptacles for receiving electro-acoustic transducers, said receptacles being formed by annular rib means moulded thereto; engaging hook means on said annular rib means for gripping said transducers; peg means moulded to said lower part means; and contact spring means positioned on said peg means.
Claim 2
Dependent Claim
62 words
A telephone handset with a two-part plastic housing divided in the longitudinal direction, comprising: lower part means having receptacles for receiving electro-acoustic transducers, said receptacles being formed by annular rib means moulded thereto; engaging hook means on said annular rib means for gripping said transducers; peg means moulded to said lower part means; and contact spring means positioned on said peg means.
Claim 3
Dependent Claim
23 words
A telephone handset as claimed in claim 1, wherein said contact spring means are secured to said peg means by locking disk means.
Claim 4
Dependent Claim
23 words
A telephone handset as claimed in claim 2, wherein each of said contact spring means is positively engaged by a second peg means.
Claim 5
Dependent Claim
31 words
A telephone handset as claimed in claim 2, further comprising: at least one downwardly bent flap on said contact spring for engaging in a corresponding recess in said lower part means.
Claim 6
Dependent Claim
28 words
A telephone handset as claimed in claims 3 or 4, further comprising: one upwardly bent flap means for plugging on a spade terminal means on said contact springs.
Claim 7
Dependent Claim
28 words
A telephone handset as claimed in claim 5, wherein said upwardly and downwardly bent flaps are arranged adjacent each other at the rear end of said contact spring.
Claim 8
Dependent Claim
18 words
A telephone handset as claimed in claim 2, wherein said annular ribs are stepped on the inside thereof.
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) | 1983-12-02 | 1984-06-02 | 1984-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-12-02 | 1988-06-02 | 1988-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-12-02 | 1992-06-02 | 1992-12-02 | $7700.00 | Window Closed / Lapsed |