GB1101518A - Water-based fogs - Google Patents

Water-based fogs

Info

Publication number
GB1101518A
GB1101518A GB17343/65A GB1734365A GB1101518A GB 1101518 A GB1101518 A GB 1101518A GB 17343/65 A GB17343/65 A GB 17343/65A GB 1734365 A GB1734365 A GB 1734365A GB 1101518 A GB1101518 A GB 1101518A
Authority
GB
United Kingdom
Prior art keywords
fatty alcohol
water
see
water droplets
micron
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
Application number
GB17343/65A
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.)
Boeing Co
Original Assignee
Boeing Co
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 Boeing Co filed Critical Boeing Co
Publication of GB1101518A publication Critical patent/GB1101518A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41H—ARMOUR; ARMOURED TURRETS; ARMOURED OR ARMED VEHICLES; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL
    • F41H9/00—Equipment for attack or defence by spreading flame, gas or smoke or leurres; Chemical warfare equipment
    • F41H9/06—Apparatus for generating artificial fog or smoke screens
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/20—Mixing gases with liquids
    • B01F23/21—Mixing gases with liquids by introducing liquids into gaseous media
    • B01F23/211—Methods
    • C—CHEMISTRY; METALLURGY
    • C06—EXPLOSIVES; MATCHES
    • C06D—MEANS FOR GENERATING SMOKE OR MIST; GAS-ATTACK COMPOSITIONS; GENERATION OF GAS FOR BLASTING OR PROPULSION (CHEMICAL PART)
    • C06D3/00—Generation of smoke or mist (chemical part)

Abstract

A stable artificial fog may be made of water droplets coated with a long chain fatty alcohol, especially cetyl or palemeric alcohol; the droplets preferably have a diameter less than one micron and the fatty alcohol coating is monomolecular. Preferred methods of making the fog comprise spraying water droplets (13) through a vapour (14) formed by heating the fatty alcohol (see Fig. 1, not shown); mixing a condensing jet of steam (18) and a jet of the fatty alcohol (19) vapourized by a burner (20) (see Fig. 2, not shown); forming a thin layer of the fatty alcohol upon the surface (22) of water in an container (23) and focussing an ultrasonic generator on the interface to generate a fine mist (25) p (see Fig. 3, not shown); forming a homogeneous emulsion of the fatty alcohol and water and spraying it to form particles 100-200 microns diameter which are passed through an ultrasonic field to break them down to one micron or less; and mixing a fine spray of water droplets and a fine spray of the fatty alcohol and passing them through an ultrasonic field.
GB17343/65A 1964-04-24 1965-04-23 Water-based fogs Expired GB1101518A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US36226264A 1964-04-24 1964-04-24

Publications (1)

Publication Number Publication Date
GB1101518A true GB1101518A (en) 1968-01-31

Family

ID=23425392

Family Applications (1)

Application Number Title Priority Date Filing Date
GB17343/65A Expired GB1101518A (en) 1964-04-24 1965-04-23 Water-based fogs

Country Status (1)

Country Link
GB (1) GB1101518A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2319594A (en) * 1996-10-18 1998-05-27 Kidde Fire Protection Ltd Improvements in and relating to marine vessels
DE102004016211A1 (en) * 2004-03-30 2005-10-20 Fraunhofer Ges Forschung Aerosol generator for medical treatment, comprises that it forms a first aqueous aerosol cloud followed by a second combined oil-based aerosol

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2319594A (en) * 1996-10-18 1998-05-27 Kidde Fire Protection Ltd Improvements in and relating to marine vessels
DE102004016211A1 (en) * 2004-03-30 2005-10-20 Fraunhofer Ges Forschung Aerosol generator for medical treatment, comprises that it forms a first aqueous aerosol cloud followed by a second combined oil-based aerosol

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