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National Presto Industries is a company founded in 1905 in Eau Claire, Wisconsin. [2] Originally called "Northwestern Steel and Iron Works" the company changed its name to the "National Pressure Cooker Company" in 1929 and then National Presto Industries, Inc. 1953. [ 3 ]
It has been claimed to be the first mainstream brand of blender, [1] though technically the Waring blender brand was introduced in 1937. In 1946, Oster acquired the Stevens Electric Company, which had received a patent on the liquifying blender in 1922.
A stovetop pressure cooker. A pressure cooker is a sealed vessel for cooking food with the use of high pressure steam and water or a water-based liquid, a process called pressure cooking. The high pressure limits boiling and creates higher temperatures not possible at lower pressures, allowing food to be cooked faster than at normal pressure.
Rival re-introduced the Bean Pot as the Crock-Pot in 1971, along with a book of slow-cooker recipes, and it quickly became one of their top products. [6] Rival went private again in 1986, [5] but became a publicly traded company again in 1992 [1] after a failed attempt in 1990. [5]
Presta valves use air pressure to hold the valve closed, then use a small nut to ensure the valve stays sealed in use. Loosening the nut takes time, which is a disadvantage for racing. Leaving the nut loose still allows the valve to seal, but may make it easier to have accidental (or malicious) deflation.
The ER-4, [4] [5] introduced by Toshiba on December 10, 1955 [5] [6] [7] (or 1956 [3]), was the world's first automatic electric rice cooker for home use. It was developed by Toshiba's Shogo Yamada beginning in 1951 and completed in 1955 thanks to a breakthrough invention by Yoshitada Minami ( ja ), president of a Toshiba partner company.