US3701850A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adapter device for an automatic telephone answering apparatus
Assignee: Pioneer Corp
•
Filing: 1970-12-29
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Granted: 1972-10-31
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Expires: 1990-12-29
Abstract
Abstract An adapter device connected between an automatic telephone answering apparatus and plural telephone lines, which connects the automatic telephone answering apparatus to the telephone line of a called telephone, so that the apparatus can be used to the best advantage.
Inventors
- 👤 Shizuo Ando
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 15:09
CPC Classifications
H; H04; H04M; H04M1/00; H04M1/64; H04M1/65; H04M1/654
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
181 words
An adapter device for an automatic telephone answering apparatus comprising: a. a plurality of switching means, each one of said plurality of switching means coupled to one of a plurality of telephone lines, said switching means initiating operation of said device, b. a first relay means, energized by one of said switching means, for connecting one of said plurality of said telephone lines to said automatic telephone answering apparatus, c. a first holding means for holding said first relay means, d. a second relay means energized when said automatic telephone answering apparatus operates to answer by closing a talking circuit of said one telephone line, e. a second holding means which is energized by said second relay means for holding said first relay in lieu of said first holding means holding said first relay means, and f. a third relay means, said third relay means changing state in response to the operation of said one of said switching means, for disconnecting the others of said plurality of telephone lines and for initiating a timer circuit coupled to said first holding circuit.
Claim 2
Dependent Claim
181 words
An adapter device for an automatic telephone answering apparatus comprising: a. a plurality of switching means, each one of said plurality of switching means coupled to one of a plurality of telephone lines, said switching means initiating operation of said device, b. a first relay means, energized by one of said switching means, for connecting one of said plurality of said telephone lines to said automatic telephone answering apparatus, c. a first holding means for holding said first relay means, d. a second relay means energized when said automatic telephone answering apparatus operates to answer by closing a talking circuit of said one telephone line, e. a second holding means which is energized by said second relay means for holding said first relay in lieu of said first holding means holding said first relay means, and f. a third relay means, said third relay means changing state in response to the operation of said one of said switching means, for disconnecting the others of said plurality of telephone lines and for initiating a timer circuit coupled to said first holding circuit.
Claim 3
Dependent Claim
56 words
An adapter device for an automatic telephone answering apparatus as set forth in claim 1, wherein said first holding means comprises a Schmitt trigger circuit and a time constant circuit whereby the operation of the Schmitt trigger circuit is held for period of time by said time constant circuit after the second relay means is released.
Claim 4
Dependent Claim
57 words
An adapter device for an automatic telephone answering apparatus as set forth in cLaim 1, wherein said first relay means comprises a holding contact and two windings, one of said windings being connected to said one switching means and the other of said windings being connected to said first and second holding means through said self-holding contact.
Claim 5
Dependent Claim
51 words
An adapter device for an automatic telephone answering apparatus as set forth in claim 3, in which said self-holding contact of said first relay means is connected in series between an electric power source and a connecting point wherein the first and second holding means are connected at said connecting point.
Claim 6
Dependent Claim
55 words
An adapter device for an automatic telephone answering apparatus as set forth in claim 3, wherein said self-holding contact of said first relay means and said third relay means are connected in series between the electric power source and a connecting point wherein said first and second holding means are connected at said connecting point.
Claim 7
Dependent Claim
42 words
An adapter device for an automatic telephone answering apparatus as set forth in claim 1, wherein said first relay means includes a self-holding contact and said first relay means is connected to said first and second holding means through said self-holding contact.
Claim 8
Dependent Claim
42 words
An adapter device for an automatic telephone answering apparatus as set forth in claim 6, wherein said self-holding contact of said first relay means connects a power source to a common point of said first holding means and said second holding means.
References Cited (Backward Citations)
US2846505A
Cited
US3193620A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-10-31 | 1976-05-01 | 1976-10-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-31 | 1980-05-01 | 1980-10-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-31 | 1984-05-01 | 1984-10-31 | $7700.00 | Window Closed / Lapsed |