US3798383A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ringing device for an electrical telephone
Assignee: Individual
•
Filing: 1972-02-04
•
Granted: 1974-03-19
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Expires: 1992-02-04
Abstract
Abstract A telephone such as a toy telephone is provided with a ringing device in the form of the earpiece of the handset of the telephone.
Inventors
- 👤 H Brandstatter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 05:12
CPC Classifications
H; H04; H04M; H04M1/00; H04M1/02; H04M1/03
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
164 words
In a telephone including a handset having a mouthpiece with a mouthpiece capsule and an earpiece with an earpiece capsule, apparatus within one of said capsules comprising: an exciter coil for generating a magnetic field; an iron core associated with said exciter coil; a first diaphragm on one side of the said exciter coil, said first diaphragm being associated with the voice communication function of the telephone; a resilient ringing device on the other side of said exciter coil and movable under the influence of a magnetic field, said resilient ringing device being electrically connected to said exciter coil and comprising a sounding membrane with cuts forming a resilient lug, a first contact on said resilient lug and a contact means cooperatively opposite said first contact for forming a circuit interrupter; and adjustment means for moving said resilient ringing device with respect to said exciter coil to modify the influence of a magnetic field generated by said exciter coil of said resilient ringing device.
Claim 2
Dependent Claim
164 words
In a telephone including a handset having a mouthpiece with a mouthpiece capsule and an earpiece with an earpiece capsule, apparatus within one of said capsules comprising: an exciter coil for generating a magnetic field; an iron core associated with said exciter coil; a first diaphragm on one side of the said exciter coil, said first diaphragm being associated with the voice communication function of the telephone; a resilient ringing device on the other side of said exciter coil and movable under the influence of a magnetic field, said resilient ringing device being electrically connected to said exciter coil and comprising a sounding membrane with cuts forming a resilient lug, a first contact on said resilient lug and a contact means cooperatively opposite said first contact for forming a circuit interrupter; and adjustment means for moving said resilient ringing device with respect to said exciter coil to modify the influence of a magnetic field generated by said exciter coil of said resilient ringing device.
Claim 3
Dependent Claim
24 words
The apparatus of claim 1 wherein said first contact and said contact means are arranged eccentrically adjacent the fixed end of said resilient lug.
Claim 4
Dependent Claim
40 words
The apparatus of claim 1 wherein said adjustment means extends through the exposed bottom of said capsule and includes means to adjust the distance of said contact means from said exciter coil and thereby the position of said resilient lug.
Claim 5
Dependent Claim
89 words
The apparatus of claim 3 further comprising a contact membrane for supporting said contact means and wherein said adjustment means comprises an adjusting plate which can be turned from outside said capsule and is arranged between said contact membrane and the bottom of said capsule, and a wedge-shaped cam provided between said adjustment plate and the capsule bottom so that a rotation of said adjustment plate is accompanied by a bending of said contact membrane and thus of said resilient lug of said sounding membrane towards said exciting coil.
Claim 6
Dependent Claim
81 words
The apparatus of claim 4 wherein said adjustment plate occupies a substantially circular opening in the capsule bottom and has a lateral arm extending between said bottom and said contact membrane, the inner surface of said capsule bottom being provided with a wedge-shaped cam comprising a curved abutment face, said arm being provided with an abutment ramp which is opposite said curved abutment face which is curved so as to be concentric to the axis of rotation of said adjustment plate.
Claim 7
Dependent Claim
43 words
The apparatus of claim 5 further comprising a detent arm arrange in opposite relationship to said lateral arm, said capsule being provided with detent grooves in its bottom inner surface, said detent arm having a part adapted to fit into said detent grooves.
Claim 8
Dependent Claim
66 words
The apparatus of claim 6 further comprising arms axially extending above an annular wall formed on the bottom of said capsule, outwardly extending hooks on the axial arms, a wall ring having recesses which are resilient engaged by said axial arms, a carrying plate for said exciter coil, and lateral extensions on said carrying plate which are engaged by the lower wall of said ring wall.
Claim 9
Dependent Claim
70 words
The apparatus of claim 7 wherein said carrying plate for said coil has a peripheral annular lip resting on said sounding membrane, a spacing ring on said contact membrane mounted in the bottom of the capsule, said spacing ring supporting said sounding membrane, said apparatus further comprising lug-shaped marginal tabs which are integrally molded on said sounding and contact membranes and passing through upwardly opening recesses in said annular wall.
Claim 10
Dependent Claim
35 words
The apparatus of claim 8 wherein said wall ring includes an annular shoulder at its upper end for supporting said first diaphragm, and further comprising a gripping ring for retaining said wall ring in position.
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) | 1977-03-18 | 1977-09-17 | 1978-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-03-18 | 1981-09-17 | 1982-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-03-18 | 1985-09-17 | 1986-03-19 | $7700.00 | Window Closed / Lapsed |