A soap dispenser is a device that, when manipulated or triggered appropriately, dispenses soap (usually in small, single-use quantities). Soap dispensers typically dispense liquid soap or foam soap. They can be automatic or manually operated by a handle and are often found in public toilets or private bathrooms.
Manual
The design of a manual soap dispenser is generally determined by whether the soap comes in liquid, powder or foam form.
Liquid soap
When soap is dispensed in liquid form, it is generally in a squeeze bottle or pump. The most popular soap dispensers of this type are plastic pump bottles, many of which are disposable.
William Quick patented liquid soap on August 22, 1865. Minnetonka Corporation introduced the first modern liquid soap in 1980 and bought up the entire supply of plastic pumps used in their dispensers to delay competition entering the market.

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