Patent US5716325A successfully refreshed from Google Patents.
US3318328A
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Alarm system
Assignee: Combustion Engineering Inc
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Filing: 1965-05-26
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Granted: 1967-05-09
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Expires: 1985-05-26
Abstract
No abstract record available.
Inventors
- 👤 Kenneth J Schrader
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 01:06
CPC Classifications
F; F16; F16L; F16L55/00; F15; F15B; F15B21/00; F16K; F16K37/00; F16K37/0066; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7781; Y10T137/7835; Y10T137/7836; Y10T137/8158; Y10T137/8326
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
130 words
AN ALARM SYSTEM INCLUDING, A FLUID PRESSURE MANIFOLD CONDUIT, A SUPPLY OF FLUID PRESSURE CONNECTED TO THE MANIFOLD TO NORMALLY MAINTAIN THE MANIFOLD PRESSURIZED AND IN AN INOPERATIVE CONDITION, A PLURALITY OF MONITOR VALVES CONNECTED IN PARALLEL TO THE MANIFOLD, EACH VALVE HAVING A FIRST POSITION IN WHICH THE VALVE RETAINS THE PRESSURE OF THE SUPPLY WITHIN THE MANIFOLD AND A SECOND POSITION IN WHICH THE VALVE SIMULTANEOUSLY VENTS THE MANIFOLD PRESSURE TO ATMOSPHERE AND ANNUNCIATES THE SECOND POSITION, AND A CONDUIT CONNECTED TO EACH VALVE AND RECEIVING A FLUID PRESSURE GENERATED BY A SEPARATE NORMAL MONITORED CONDITION OF A PROCESS WHICH FLUID PRESSURE WILL HOLD THE VALVE IN ITS FIRST POSITION, THE VALVE BEING MOVED TO ITS SECOND POSITION WHEN THE MONITORED CONDITION CHANGES A PREDETERMINED AMOUNT FROM NORMAL.
Claim 2
Dependent Claim
130 words
AN ALARM SYSTEM INCLUDING, A FLUID PRESSURE MANIFOLD CONDUIT, A SUPPLY OF FLUID PRESSURE CONNECTED TO THE MANIFOLD TO NORMALLY MAINTAIN THE MANIFOLD PRESSURIZED AND IN AN INOPERATIVE CONDITION, A PLURALITY OF MONITOR VALVES CONNECTED IN PARALLEL TO THE MANIFOLD, EACH VALVE HAVING A FIRST POSITION IN WHICH THE VALVE RETAINS THE PRESSURE OF THE SUPPLY WITHIN THE MANIFOLD AND A SECOND POSITION IN WHICH THE VALVE SIMULTANEOUSLY VENTS THE MANIFOLD PRESSURE TO ATMOSPHERE AND ANNUNCIATES THE SECOND POSITION, AND A CONDUIT CONNECTED TO EACH VALVE AND RECEIVING A FLUID PRESSURE GENERATED BY A SEPARATE NORMAL MONITORED CONDITION OF A PROCESS WHICH FLUID PRESSURE WILL HOLD THE VALVE IN ITS FIRST POSITION, THE VALVE BEING MOVED TO ITS SECOND POSITION WHEN THE MONITORED CONDITION CHANGES A PREDETERMINED AMOUNT FROM NORMAL.
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) | 1970-05-08 | 1970-11-07 | 1971-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-05-08 | 1974-11-07 | 1975-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-05-08 | 1978-11-07 | 1979-05-09 | $7700.00 | Window Closed / Lapsed |