US3244137A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pneumatically actuated fire alarm
Assignee: Individual
•
Filing: 1964-09-16
•
Granted: 1966-04-05
•
Expires: 1984-09-16
Abstract
No abstract record available.
Inventors
- 👤 William J Garvey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 01:07
CPC Classifications
G; G08; G08B; G08B17/00; G08B17/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
114 words
A FIRE ALARM DEVICE COMPRISING: CONTAINER MEANS FOR HOLDING A PRESSURIZED PROPELLANT; VALVE MEANS FOR RELEASING THE PRESSURIZED PROPELLANT FROM THE CONTAINER MEANS; SIGNAL MEANS ADAPTED TO EMIT A WARNING SIGNAL UPON RELEASE OF THE PRESSURIZED PROPELLANT BY THE VALVE MEANS, THE SIGNAL MEANS BEING OPERATIVELY CONNECTED TO THE VALVE MEANS SUCH THAT MOVEMENT OF THE SIGNAL MEANS OPENS THE VALVE MEANS, THEREBY RELEASING THE PRESSURIZED PROPELLANT; AND THERMALLY RESPONSIVE VALVE CONTROL MEANS ADAPTED TO EFFECT THE MOVEMENT OF THE SIGNAL MEANS AND THEREBY TO OPEN THE VALVE MEANS WHENEVER THE AMBIENT TEMPERATURE REACHES A PREDETERMINED LEVEL, WHEREBY THE ALARM DEVICE EMITS A WARNING SOUND WHENEVER THE AMBIENT TEMPERATURE REACHES THE SAID PREDETERMINED LEVEL.
Claim 2
Dependent Claim
114 words
A FIRE ALARM DEVICE COMPRISING: CONTAINER MEANS FOR HOLDING A PRESSURIZED PROPELLANT; VALVE MEANS FOR RELEASING THE PRESSURIZED PROPELLANT FROM THE CONTAINER MEANS; SIGNAL MEANS ADAPTED TO EMIT A WARNING SIGNAL UPON RELEASE OF THE PRESSURIZED PROPELLANT BY THE VALVE MEANS, THE SIGNAL MEANS BEING OPERATIVELY CONNECTED TO THE VALVE MEANS SUCH THAT MOVEMENT OF THE SIGNAL MEANS OPENS THE VALVE MEANS, THEREBY RELEASING THE PRESSURIZED PROPELLANT; AND THERMALLY RESPONSIVE VALVE CONTROL MEANS ADAPTED TO EFFECT THE MOVEMENT OF THE SIGNAL MEANS AND THEREBY TO OPEN THE VALVE MEANS WHENEVER THE AMBIENT TEMPERATURE REACHES A PREDETERMINED LEVEL, WHEREBY THE ALARM DEVICE EMITS A WARNING SOUND WHENEVER THE AMBIENT TEMPERATURE REACHES THE SAID PREDETERMINED LEVEL.
References Cited (Backward Citations)
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Cited
US1779463A
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US2058288A
Cited
US2729187A
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US3037778A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-04-04 | 1969-10-04 | 1970-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-04 | 1973-10-04 | 1974-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-04 | 1977-10-04 | 1978-04-05 | $7700.00 | Window Closed / Lapsed |