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1912 – The Black and Decker "Hexagon" logo symbol was introduced, symbolizing the head of a hexagonal bolt found in machine shops. It was used in one form or another from 1912 to 2014. [6] 1917 – Black & Decker invented and patented the hand-held electric drill with a pistol grip and trigger switch. [3] [7]
Craftsman is a line of tools, lawn and garden equipment, and work wear.Originally a house brand established by Sears, the brand is now owned by Stanley Black & Decker.. As with all Sears products, Craftsman tools were not manufactured by Sears during the company's ownership, but made under contract by various other companies.
Black & Decker was tasked with the job, and developed a computer program to optimize the design of the drill's motor and ensure minimal power consumption. That computer program led to the development of a cordless miniature vacuum cleaner. [3] The Mod 4 series was introduced in 1974 but was generally not successful in the marketplace.
Stanley Black & Decker, Inc., formerly known as The Stanley Works, is a Fortune 500 American manufacturer of industrial tools and household hardware, and a provider of security products.
In 1930, the company name was changed to Ray-O-Vac, an allusion to the then-new technology of vacuum tubes and electron rays. In 1933, the company patented the first wearable vacuum tube hearing aid. [8] During World War II, Rayovac supplied the United States military with nearly 500 million batteries.
An early hand-pumped vacuum cleaner. The vacuum cleaner evolved from the carpet sweeper via manual vacuum cleaners. The first manual models, using bellows, were developed in the 1860s, and the first motorized designs appeared at the turn of the 20th century, with the first decade being the boom decade.
A "Workmate Plus", scored with a holesaw and licked with paint, as a result of general "do it yourself"The Black & Decker Workmate is a general purpose portable workbench and general carpentry tool manufactured under the brand Black & Decker.
The Roots blower is one example of a vacuum pump. A vacuum pump is a type of pump device that draws gas particles from a sealed volume in order to leave behind a partial vacuum. The first vacuum pump was invented in 1650 by Otto von Guericke, and was preceded by the suction pump, which dates to antiquity. [1]
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