Patent US3623047A successfully refreshed from Google Patents.
US3623047A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Annunciator unit
Assignee: Individual
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Filing: 1968-07-08
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Granted: 1971-11-23
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Expires: 1988-07-08
Abstract
Abstract This invention relates to a fault warning annunciator having red and green lamps giving signals to indicate fault and normal conditions respectively, one or other of the lamps being energized at any time. Each lamp operates in an insistent mode until an operator acknowledges the signal by pressing a button switch whereupon the lamp operates in a less insistent acknowledged mode. The button switch is a two-position mechanical switch which changes over the modes of operation of the lamps alternately between conditions in which one lamp is in its insistent mode and the other lamp is in its acknowledged mode and vice versa, whereby when the button switch is pressed to acknowledge a signal from one lamp, the other lamp is automatically reset to operate in its insistent mode when next energized.
Inventors
- 👤 John Stallebrass
- 👤 Eve Mews
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 10:02
CPC Classifications
G; G08; G08B; G08B5/00; G08B5/22; G08B5/36
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
167 words
An annunciator comprising first and second signalling devices, first and second circuits including said first and second signalling devices respectively, steady and discontinuous electrical current sources adapted to energize said signalling devices in steady and pulsating modes respectively, a relay including two switching means, one controlling each circuit, said relay having two configurations, in one of which said first circuit is closed and said second circuit is open, and in the other of which said first circuit is open and said second circuit is closed, manually operable two-position switching means which in one position connects said steady electrical current source into said first circuit and said discontinuous electrical current source into said second circuit, and which in the other of said positions connects said discontinuous source into said first circuit and said steady source into said second circuit, whereby said relay determines which of said two signalling devices is energized and said manually operable switching means determines in which of said modes said signalling device is energized.
Claim 2
Dependent Claim
167 words
An annunciator comprising first and second signalling devices, first and second circuits including said first and second signalling devices respectively, steady and discontinuous electrical current sources adapted to energize said signalling devices in steady and pulsating modes respectively, a relay including two switching means, one controlling each circuit, said relay having two configurations, in one of which said first circuit is closed and said second circuit is open, and in the other of which said first circuit is open and said second circuit is closed, manually operable two-position switching means which in one position connects said steady electrical current source into said first circuit and said discontinuous electrical current source into said second circuit, and which in the other of said positions connects said discontinuous source into said first circuit and said steady source into said second circuit, whereby said relay determines which of said two signalling devices is energized and said manually operable switching means determines in which of said modes said signalling device is energized.
Claim 3
Dependent Claim
42 words
An annunciator according to claim 1, wherein said relay includes two armatures in a common magnetic field and each switching means of said relay comprises a pair of contacts adapted to be opened and closed by a respective one of said armatures.
Claim 4
Dependent Claim
20 words
An annunciator according to claim 1, wherein said manually operable switching means comprises a plurality of two-position, ganged, mechanical switches.
Claim 5
Dependent Claim
232 words
A discrepancy warning system comprising a component adapted to adopt either one of two states, means for sensing the state adopted by said component, means for controlling the state of said component being operable one way to cause said component to adopt one state and operable another way to cause said component to adopt the other state, first and second signalling devices, first and second circuits including said first and second signalling devices respectively, steady and discontinuous electrical current sources adapted to energize said signalling devices in steady and pulsating modes respectively, a relay including a pair of contacts in said first circuit adapted, in response to said sensing means, to open in said one of said states of said component and to close in said other of said states, and a second pair of contacts in said second circuit adapted in response to said sensing means to close in said one of said states of said component and to open in said other of said states, manually operable two-position switching means adapted in one position to connect said steady source into said first circuit and said discontinuous source into said second circuit and to operate said controlling means one way and adapted in another position to connect said discontinuous source into said first circuit and said steady source into said second circuit and to operate said controlling means said other way.
Claim 6
Dependent Claim
232 words
A discrepancy warning system comprising a component adapted to adopt either one of two states, means for sensing the state adopted by said component, means for controlling the state of said component being operable one way to cause said component to adopt one state and operable another way to cause said component to adopt the other state, first and second signalling devices, first and second circuits including said first and second signalling devices respectively, steady and discontinuous electrical current sources adapted to energize said signalling devices in steady and pulsating modes respectively, a relay including a pair of contacts in said first circuit adapted, in response to said sensing means, to open in said one of said states of said component and to close in said other of said states, and a second pair of contacts in said second circuit adapted in response to said sensing means to close in said one of said states of said component and to open in said other of said states, manually operable two-position switching means adapted in one position to connect said steady source into said first circuit and said discontinuous source into said second circuit and to operate said controlling means one way and adapted in another position to connect said discontinuous source into said first circuit and said steady source into said second circuit and to operate said controlling means said other way.
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) | 1974-11-22 | 1975-05-24 | 1975-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-22 | 1979-05-24 | 1979-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-22 | 1983-05-24 | 1983-11-23 | $7700.00 | Window Closed / Lapsed |