US1669213A - Process of generating foam from foam-developing substances - Google Patents

Process of generating foam from foam-developing substances Download PDF

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Publication number
US1669213A
US1669213A US186164A US18616427A US1669213A US 1669213 A US1669213 A US 1669213A US 186164 A US186164 A US 186164A US 18616427 A US18616427 A US 18616427A US 1669213 A US1669213 A US 1669213A
Authority
US
United States
Prior art keywords
foam
generating
developing substances
carbonic acid
pressure
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US186164A
Other languages
English (en)
Inventor
Schnabel Rudolf
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Minimax AG
Original Assignee
Minimax AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Minimax AG filed Critical Minimax AG
Priority claimed from GB1953827A external-priority patent/GB299097A/en
Application granted granted Critical
Publication of US1669213A publication Critical patent/US1669213A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62D—CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
    • A62D1/00—Fire-extinguishing compositions; Use of chemical substances in extinguishing fires
    • A62D1/0071—Foams
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62D—CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
    • A62D1/00—Fire-extinguishing compositions; Use of chemical substances in extinguishing fires
    • A62D1/0028—Liquid extinguishing substances
    • A62D1/005—Dispersions; Emulsions
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S261/00—Gas and liquid contact apparatus
    • Y10S261/26—Foam

Definitions

  • thisphenomenon in my improved processtakes place substantially in the following manner: A'tankvfilled with a liquid capab e of developing foam, for instance a solution of saponin, is put in communication with a steel bottle containing liquid carbonic acid until the saponin solution has absorbed the uantity of carbonic acid corresponding wit the pressure prevailing whereupon the tankis closed by a cock. If ,thisecock, which may be connected with a hose with nozzle, is' opened a vigorous ebullition of the foam generating liquid takes place owing to the sudden relief of the pressure and in consequence thereof astrong develo ment of foam, as extensive experiments av'e roved.
  • Whetlier t e foam developed is allowed to escape merely b opening the cock or through anjascen ing pipe hne is aquestion of suitability only. It is, furthermore, quite 1 either mecha nically, chemically or catalyticalxlly;
  • Iclaimas my invention I 1. The process of generating foam from foam developing substances, which consists in oversaturating a saponin solution with a .gas capable of being absorbed, in a container under pressure, in such a manner that on relieving the-pressure the absorbed gas is liberated again and develops foam in conjunction with the liquid.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Dispersion Chemistry (AREA)
  • Steroid Compounds (AREA)
US186164A 1925-09-30 1927-04-23 Process of generating foam from foam-developing substances Expired - Lifetime US1669213A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE1669213X 1925-09-30
GB1953827A GB299097A (en) 1927-07-22 1927-07-22 Improved process of producing fire extinguishing foam

Publications (1)

Publication Number Publication Date
US1669213A true US1669213A (en) 1928-05-08

Family

ID=26011327

Family Applications (1)

Application Number Title Priority Date Filing Date
US186164A Expired - Lifetime US1669213A (en) 1925-09-30 1927-04-23 Process of generating foam from foam-developing substances

Country Status (2)

Country Link
US (1) US1669213A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
NL (1) NL51081C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2432146A (en) * 1941-12-15 1947-12-09 Lockheed Aircraft Corp Fire extinguishing fluid

Also Published As

Publication number Publication date
NL51081C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

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