Patent US3810170A successfully refreshed from Google Patents.
US3810170A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alarm system
Assignee: PATENT EDUCATIONAL TRUST
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Filing: 1972-10-05
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Granted: 1974-05-07
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Expires: 1992-10-05
Abstract
Abstract A visual signalling system which provides for visual signalling of deaf persons is described. The system is installed in the sleeping rooms, corridors, rest rooms, and other areas of a building which may be occupied by deaf persons. A signalling panel in each room contains a plurality of lights including a high intensity strobe lamp. Electrical control circuits for the lamps include an emergency and fire warning circuit and attention circuits. These circuits repeatedly operate the strobe lamp, and in the case of the fire and emergency circuits, override all other circuits to operate the strobe lamp. In addition, another of the lamps, which has a distinguishing color or other label, indicates the fire or emergency condition. Thus, through the use of the strobe lamps the attention of the deaf persons is obtained, and when these persons observe the other lamps, they are informed of the nature of the call, whether it be fire or other emergency condition, or visitors, or some other signalling condition.
Inventors
- 👤 R Zinsmeister
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 12:47
CPC Classifications
G; G08; G08B; G08B17/00; G08B5/00; G08B5/22; G08B5/36
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
107 words
A visual signalling system for areas adapted to be occupied by hearing-impaired persons which comprises: a. a high intensity lamp means providing a source of intense illumination disposed in the area to be occupied by the hearing-impaired persons, said source being of such intensity and duration to excite the optic senses of the hearing-impaired persons in the area, b. power applying means connected to said source for operating said source when enabled, c. sensing means responsive to occurrence of certain events, and d. means operated by said sensing means for enabling said power applying means whereby to operate said source to signal the occurrence of said event.
Claim 2
Dependent Claim
107 words
A visual signalling system for areas adapted to be occupied by hearing-impaired persons which comprises: a. a high intensity lamp means providing a source of intense illumination disposed in the area to be occupied by the hearing-impaired persons, said source being of such intensity and duration to excite the optic senses of the hearing-impaired persons in the area, b. power applying means connected to said source for operating said source when enabled, c. sensing means responsive to occurrence of certain events, and d. means operated by said sensing means for enabling said power applying means whereby to operate said source to signal the occurrence of said event.
Claim 3
Dependent Claim
15 words
The invention as set forth in claim 1 wherein said source comprises a strobe lamp.
Claim 4
Dependent Claim
23 words
The invention as set forth in claim 2 wherein said sorce further includes a plurality of second lamps each of a different color.
Claim 5
Dependent Claim
36 words
The invention as set forth in claim 3 wherein said power applying means comprises a first source of voltage, and means operated by said first source for applying pulses successively to said strobe lamp when triggered.
Claim 6
Dependent Claim
49 words
The invention as set forth in claim 4 wherein said power applying means includes a second source of voltage, and means operated by said second source of voltage for triggering said means operated by said first source, and for operating at least one of said plurality of second lamps.
Claim 7
Dependent Claim
40 words
The invention as set forth in claim 5 including means operative independently of said means operated by said second source for also triggering said means operated by said first source and for operating another of said plurality of second lamps.
Claim 8
Dependent Claim
46 words
The invention as set forth in claim 5 including a plurality of means each operative independently of said means operated by said second source for also triggering said means operated by said first source and for separately operating different ones of said plurality of second lamps.
Claim 9
Dependent Claim
46 words
The invention as set forth in claim 5 wherein said sensing means includes a fire detection device and wherein said means operated by said sensing means includes means operated by said device for providing said second source of voltage when fire is detected by said device.
Claim 10
Dependent Claim
44 words
The invention as set forth in claim 8 including first time delay means connected between said device and said first source for disconnecting said first source from said power applying means for a predetermined period of time after said device detects a fire condition.
Claim 11
Dependent Claim
37 words
The invention as set forth in claim 9 wherein said power applying means includes second time delay means for successively interrupting the operation of said independently operative triggering means, each interruption occurring after a certain time delay.
Claim 12
Dependent Claim
23 words
The invention as set forth in claim 1 further comprising means for automatically, repetitively flashing the source of intense illumination on and off.
Claim 13
Dependent Claim
32 words
The invention as set forth in claim 11 further comprising means for illuminating the area with illumination spots of different color for providing different messages for the hearing-impaired persons in the area.
References Cited (Backward Citations)
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Cited
US2047586A
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US2982949A
Cited
US3150359A
Cited
US3278895A
Cited
US3430224A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-05-06 | 1977-11-05 | 1978-05-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-05-06 | 1981-11-05 | 1982-05-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-05-06 | 1985-11-05 | 1986-05-07 | $7700.00 | Window Closed / Lapsed |