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The aerosol spray canister invented by USDA researchers, Lyle Goodhue and William Sullivan.. The concepts of aerosol probably go as far back as 1790. [1] The first aerosol spray can patent was granted in Oslo in 1927 to Erik Rotheim, a Norwegian chemical engineer, [1] [2] and a United States patent was granted for the invention in 1931. [3]
The foam pump is widely used for dispensing cosmetic products and household chemicals, such as mousse foam cleansing, hand washing liquid, hand sanitizer, facial cleanser, shaving cream, hair conditioning mousse, sun protection foam, spot removers, baby products, and so on.
An ignited lighter Disposable lighter. A lighter is a portable device which uses mechanical or electrical means to create a controlled flame, and can be used to ignite a variety of flammable items, such as cigarettes, butane gas, fireworks, candles, or campfires.
Typically, these devices produce the equivalent of one to five liters per minute of continuous oxygen flow and they use some version of pulse flow or "demand flow" to deliver oxygen only when the patient is inhaling. [14] They can also provide pulses of oxygen either to provide higher intermittent flows or to reduce power consumption.
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The common hand soap dispenser is such a pump. Radial piston pump – a form of hydraulic pump where pistons extend in a radial direction. Vibratory pump or vibration pump – a particularly low-cost form of plunger pump, popular in low-cost espresso machines. [15] [16] The only moving part is a spring-loaded piston, the armature of a solenoid.
A vacuum ejector, or simply ejector, or aspirator, is a type of vacuum pump, which produces vacuum by means of the Venturi effect.. In an ejector, a working fluid (liquid or gaseous) flows through a jet nozzle into a tube that first narrows and then expands in cross-sectional area.
Water dispensers can be directly connected to the in-house water source for continuous dispensing of hot and cold drinking water. It is commonly referred to as POU ( point of use ) water dispensers. POU units are generally more hygienic than bottled water coolers, provided the end user has access to clean water sources.