US4069872A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of and device for extinguishing burning gases
Assignee: ThyssenKrupp Marine Systems GmbH
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Filing: 1977-02-28
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Granted: 1978-01-24
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Expires: 1997-02-28
Abstract
Abstract A method of and a device for extinguishing burning gases forming by evapoion of a low-temperature liquid gas stored in tank spaces and ignited upon entering atmosphere by random effects is described. The method and device include means for introducing a hydrocarbon (halone) such as difluorochlorobromomethane or trifluorobromomethane or mixtures thereof as an extinguishing agent into burning low-temperature gases underneath the root of the flame for achieving a chemical reaction with the burning low-temperature gases.
Inventors
- 👤 Harry Lassen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 01:03
CPC Classifications
A; A62; A62C; A62C99/00; A62C99/0009; A62C99/0018; A62D; A62D1/00; A62D1/0028; A62D1/0057
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
88 words
A method of extinguishing burning gases forming by evaporation of a low-temperature liquid gas stored in tank spaces and ignited upon entering atmosphere by random effects, comprising the steps of a. introducing a halogenated hydrocarbon selected from the group consisting of CF 2 ClBr CF 3 Br and mixtures thereof as an extinguishing agent into burning low-temperature gases underneath the root of the flame for achieving a chemical reaction with the burning low-temperature gases, and b. reliably gasifying the extinguishing agent by the radiation energy of the flame.
Claim 2
Independent Claim
88 words
A method of extinguishing burning gases forming by evaporation of a low-temperature liquid gas stored in tank spaces and ignited upon entering atmosphere by random effects, comprising the steps of a. introducing a halogenated hydrocarbon selected from the group consisting of CF 2 ClBr CF 3 Br and mixtures thereof as an extinguishing agent into burning low-temperature gases underneath the root of the flame for achieving a chemical reaction with the burning low-temperature gases, and b. reliably gasifying the extinguishing agent by the radiation energy of the flame.
Claim 3
Dependent Claim
18 words
A method as claimed in claim 1, wherein combustion air is supplied in addition to the halogenated hydrocarbon.
Claim 4
Independent Claim
89 words
A device for extinguishing burning gases forming by evaporation of a low-temperature liquid gas stored in tank spaces and ignited upon entering atmosphere by random effects, comprising a tubular gas duct having a free gas-discharge end and being arranged to guide gases forming by evaporation of a low-temperature liquid gas in a tank space from said tank space into the atmosphere, and inlet sockets arranged at a point downstream from the gas-discharge end of the tubular gas duct and adapted to eject halogenated hydrocarbon serving as an extinguishing agent.
Claim 5
Independent Claim
89 words
A device for extinguishing burning gases forming by evaporation of a low-temperature liquid gas stored in tank spaces and ignited upon entering atmosphere by random effects, comprising a tubular gas duct having a free gas-discharge end and being arranged to guide gases forming by evaporation of a low-temperature liquid gas in a tank space from said tank space into the atmosphere, and inlet sockets arranged at a point downstream from the gas-discharge end of the tubular gas duct and adapted to eject halogenated hydrocarbon serving as an extinguishing agent.
Claim 6
Dependent Claim
21 words
A device as claimed in claim 3, wherein the inlet sockets are directed into the interior of the tubular gas duct.
Claim 7
Dependent Claim
24 words
A device as claimed in claim 3, wherein the free end of the tubular gas duct is in the form of a cone hood.
Claim 8
Dependent Claim
34 words
A device as claimed in claim 5, wherein a gas duct cone which at the same time serves as a rain discharge and as combustion air supply means is arranged in the cone hood.
Claim 9
Dependent Claim
29 words
A device as claimed in claim 5, wherein openings serving as rain discharge and as combustion air supply means are provided in the lower portion of the cone hood.
Claim 10
Dependent Claim
17 words
A device as claimed in claim 3, wherein the inlet sockets are in the form of nozzles.
Claim 11
Dependent Claim
45 words
A device as claimed in claim 5, wherein the cone hood contains a reaction site, and the inlet sockets are in the form of nozzles arranged mainly to spray to the reaction site and a partial amount to the lower portion of the cone hood.
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) | 1981-01-23 | 1981-07-25 | 1982-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-01-23 | 1985-07-25 | 1986-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-01-23 | 1989-07-25 | 1990-01-24 | $7700.00 | Window Closed / Lapsed |