aerosol dispenser


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aerosol dispenser,

device designed to produce a fine spray of liquid or solid particles that can be suspended in a gas such as the atmosphere. The dispenser commonly consists of a container that holds under pressure the substance to be dispersed (e.g., paints, insecticides, medications, and hair sprays) and a liquefied gas propellant. When a valve is released, the propellant forces the substance through an atomizer and out of the dispenser in the form of a fine spray. These devices are more properly termed spray dispensers rather than aerosol dispensers because the particles of the dispersed substance are usually larger than the particles of a true aerosol (see colloidcolloid
[Gr.,=gluelike], a mixture in which one substance is divided into minute particles (called colloidal particles) and dispersed throughout a second substance. The mixture is also called a colloidal system, colloidal solution, or colloidal dispersion.
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), such as a fog or a smoke. FreonFreon
[trade name], any one of a special class of chemical compounds that are used as refrigerants, aerosol propellants, and solvents. These compounds are haloalkanes, i.e., halogen derivatives of saturated hydrocarbons (see alkane).
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 was the most common aerosol propellant, but its use has been banned because it is believed to contribute to destruction of the ozone layerozone layer
or ozonosphere,
region of the stratosphere containing relatively high concentrations of ozone, located at altitudes of 12–30 mi (19–48 km) above the earth's surface.
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 of the stratospherestratosphere
, second lowest layer of the earth's atmosphere. The level from which it extends outward varies with latitude; it begins c.5 1-2 mi (9 km) above the poles, c.6 or 7 mi (c.10 or 11 km) in the middle latitudes, and c.10 mi (16 km) at the equator, and extends outward c.
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; common propellants now include propane, butane, and other hydrocarbons.
References in periodicals archive ?
Well-known for bringing hundreds of revolutionary consumer products to market, including easy-pouring paint cans, affordable electric toothbrushes and the first palm-sized pocket aerosol dispenser , Nottingham Spirk's medical innovations include the HealthSpot Station, the first true integration of primary patient care and telemedicine, now found in locations such as Rite Aid.
Tenders are invited for Rate contract for supply of refillv of microburst and aerosol dispenser
The patent covers an anhydrous base composition suitable for incorporation in an anhydrous aerosol composition intended for discharge from an aerosol dispenser.
The officer found a canister with an aerosol dispenser, which in his view was very similar to the CS spray that officers are administered with in their duty.
Immediately thereafter, the basal 10 cm of each tree trunk was coated with a layer of sticky material (Tanglefoot[R]) applied from an aerosol dispenser.
ANCHOR CREAM in an aerosol dispenser is a real dairy cream--a message Arla is eager to convey.
Each can's 3,800 metered sprays may be released manually, or automatically by Nilodor's Aerosol Dispenser or a similar dispensing cabinet.
The pheromone aerosol dispenser is part of a custom designed controller and sensor network that gives farmers remote access to the conditions in the field 24/7.
The Scent Machine[TM] is an automatic aerosol dispenser system that uses an automatic timer to release a meter-measured spray of scent every 3 1/2 minutes.
An automatic aerosol dispenser and dispensing system utilizing a remotely programmable controller has been patented by CCL Industries, Toronto, Canada.
Tenders are invited for Penetrant Remover Approved By Rdso To Is: 3658-1991 To Supplied In Aerosol Dispenser.