Patent US3139934A successfully refreshed from Google Patents.
US3139934A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fire extinguishing apparatus
Assignee: EIDP Inc
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Filing: 1961-06-26
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Granted: 1964-07-07
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Expires: 1981-06-26
Abstract
No abstract record available.
Inventors
- 👤 Gorski Robert Alexander
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:28
CPC Classifications
A; A62; A62C; A62C99/00; A62C99/0009; A62C99/0018; A62C99/0027
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
168 words
IN A FIRE EXTINGUISHER, A CONTAINER ADAPTED TO CONTAIN A LIQUIFIED HALOGENATED ALIPHATIC GASEOUS COMPOUND UNDER PRESSURE, A VALVE FOR RELEASING THE CONTENTS OF THE CONTAINER, A NOZZLE MEMBER ATTACHED TO SAID VALVE, SAID NOZZLE MEMBER TERMINATING IN A RESTRICTIVE ORIFICE, SAID RESTRICTIVE ORIFICE HAVING A RATIO OF ORIFICE LENGTH TO ORIFICE DIAMETER OF 0.5 TO 10 SO THAT SAID EXTINGUISHER HAS A RATE OF DISCHARGE PER ORIFICE CROSS-SECTIONAL AREA OF 1,400 TO 3,000 GRAMS PER SECOND PER SQUARE CENTIMETER, A HORN MEMBER ATTACHED TO SAID NOZZLE MEMBER, SAID HORN MEMBER HAVING A RATIO OF HORN LENGTH TO HORN DIAMETER OF 2.6 TO 30 AND A RATIO OF HORN DIAMETER TO ORIFICE DIAMETER OF 2.9 TO 12 SO THAT SAID EXTINGUISHER HAS A RATE OF DISCHARGE PER HORN CROSS-SECTIONAL AREA OF 20 TO 185 GRAMS PER SECOND PER SQUARE CENTIMETER, WHEREBY OPENING THE VALVE CAUSES THE LIQUIFIED HALOGENATED ALIPHATIC GASEOUS COMPOUND TO PASS THROUGH SAID RESTRICTIVE ORIFICE AND BE EXPELLED FROM SAID HORN AS A FIRE SMOTHERING GAS.
Claim 2
Dependent Claim
168 words
IN A FIRE EXTINGUISHER, A CONTAINER ADAPTED TO CONTAIN A LIQUIFIED HALOGENATED ALIPHATIC GASEOUS COMPOUND UNDER PRESSURE, A VALVE FOR RELEASING THE CONTENTS OF THE CONTAINER, A NOZZLE MEMBER ATTACHED TO SAID VALVE, SAID NOZZLE MEMBER TERMINATING IN A RESTRICTIVE ORIFICE, SAID RESTRICTIVE ORIFICE HAVING A RATIO OF ORIFICE LENGTH TO ORIFICE DIAMETER OF 0.5 TO 10 SO THAT SAID EXTINGUISHER HAS A RATE OF DISCHARGE PER ORIFICE CROSS-SECTIONAL AREA OF 1,400 TO 3,000 GRAMS PER SECOND PER SQUARE CENTIMETER, A HORN MEMBER ATTACHED TO SAID NOZZLE MEMBER, SAID HORN MEMBER HAVING A RATIO OF HORN LENGTH TO HORN DIAMETER OF 2.6 TO 30 AND A RATIO OF HORN DIAMETER TO ORIFICE DIAMETER OF 2.9 TO 12 SO THAT SAID EXTINGUISHER HAS A RATE OF DISCHARGE PER HORN CROSS-SECTIONAL AREA OF 20 TO 185 GRAMS PER SECOND PER SQUARE CENTIMETER, WHEREBY OPENING THE VALVE CAUSES THE LIQUIFIED HALOGENATED ALIPHATIC GASEOUS COMPOUND TO PASS THROUGH SAID RESTRICTIVE ORIFICE AND BE EXPELLED FROM SAID HORN AS A FIRE SMOTHERING GAS.
References Cited (Backward Citations)
US2548725A
Cited
US2621746A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-07-07 | 1968-01-06 | 1968-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-07-07 | 1972-01-06 | 1972-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-07-07 | 1976-01-06 | 1976-07-07 | $7700.00 | Window Closed / Lapsed |