US3560657A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic warning system
Assignee: M-R OHIO Inc A OHIO CORP
•
Filing: 1968-07-05
•
Granted: 1971-02-02
•
Expires: 1988-07-05
Abstract
Abstract An automatic warning system responds to a warning signal energized by an outside agency by closing a switch which permits a power supply to energize the motor on a tape deck, the tape deck generates a plurality of single frequency pulses which are rectified and used to energize an electronic switch that provides data to a coupling mechanism and dials to a remote telephone. After the telephone is dialed, the tape deck broadcasts a voice signal and then a further series of single frequency pulses that resets the system and dials a second number or the same number. The switch is then opened and the system turned off.
Inventors
- 👤 Paul L Stone
- 👤 Paul J Dever
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:55
CPC Classifications
H; H04; H04M; H04M11/00; H04M11/04; H04M11/045
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
296 words
An automatic warning system to be connected to a telephone system comprising a coupling means for connecting said system to said warning system; first means for generating first signal in response to a predetermined condition; means for receiving said first signal, said receiving means being operative to generate an alarm output signal; second means for generating a control signal and a message signal, said control signal being a plurality of single pulses corresponding to a predetermined telephone number, all of said pulses having the same frequency, said message signal being at audio frequencies; a band pass filter connected to said second means, said filter being operative to separate said control signal from said message signal; a dialing control switch responsive to said pulses, means for connecting said dialing control switch to said coupling means, a said dialing control switch being operative to signal a predetermined telephone in response to said pulses of said control signal; means for controlling said separated message signal to said coupling means; a normally deenergized power supply, said power supply being selectively energizable in response to said alarm output of said receiving means to energize a group of means comprising said second means, said band pass filter, said dialing control switch and said coupling means; a normally open latching relay interposed between said receiving means and said power supply; a cutoff switch intermediate said second means and said normally open latching relay said latching relay being operative to complete a circuit and energize said power supply in response to said output signal from said receiving means so that said group of means is energized; and said cutoff switch is operative to open said latching relay and deenergize said power supply and said group of means at the conclusion of a message signal.
Claim 2
Dependent Claim
296 words
An automatic warning system to be connected to a telephone system comprising a coupling means for connecting said system to said warning system; first means for generating first signal in response to a predetermined condition; means for receiving said first signal, said receiving means being operative to generate an alarm output signal; second means for generating a control signal and a message signal, said control signal being a plurality of single pulses corresponding to a predetermined telephone number, all of said pulses having the same frequency, said message signal being at audio frequencies; a band pass filter connected to said second means, said filter being operative to separate said control signal from said message signal; a dialing control switch responsive to said pulses, means for connecting said dialing control switch to said coupling means, a said dialing control switch being operative to signal a predetermined telephone in response to said pulses of said control signal; means for controlling said separated message signal to said coupling means; a normally deenergized power supply, said power supply being selectively energizable in response to said alarm output of said receiving means to energize a group of means comprising said second means, said band pass filter, said dialing control switch and said coupling means; a normally open latching relay interposed between said receiving means and said power supply; a cutoff switch intermediate said second means and said normally open latching relay said latching relay being operative to complete a circuit and energize said power supply in response to said output signal from said receiving means so that said group of means is energized; and said cutoff switch is operative to open said latching relay and deenergize said power supply and said group of means at the conclusion of a message signal.
References Cited (Backward Citations)
US3207850A
Cited
US3461241A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-02-01 | 1974-08-03 | 1975-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-01 | 1978-08-03 | 1979-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-01 | 1982-08-03 | 1983-02-02 | $7700.00 | Window Closed / Lapsed |