P. R. Mallory and Co Inc
Encyclopedia
P. R. Mallory and Co Inc (Burlington, MA) was a US producer of dry cell batteries (Mercury; alkaline Duracell), electronic components including electrolytic capacitors, and audible warning devices ("Sonalert"), it also was the parent firm of Mallory Batteries Ltd., an Irish
producer of Ever Ready batteries. Ever Ready had a sizable stake in it by World War II
and had a close relationship with Mallory by the late 1960s. In the US, "Eveready" batteries were a trademark of Union Carbide
, which had no relationship with P.R. Mallory.
Scientists George Allis and Daniel I. Pomerantz at P. R. Mallory and Co discovered anodic bonding
of glass to silicon. Their work was published in 1969 in the Journal of Applied Physics
and is protected under U.S. Patent No 3,397,278.
In 1978 the company was purchased by Dart Industries and renamed Duracell
after its alkaline battery
brand introduced in 1964.
Ireland
Ireland is an island to the northwest of continental Europe. It is the third-largest island in Europe and the twentieth-largest island on Earth...
producer of Ever Ready batteries. Ever Ready had a sizable stake in it by World War II
World War II
World War II, or the Second World War , was a global conflict lasting from 1939 to 1945, involving most of the world's nations—including all of the great powers—eventually forming two opposing military alliances: the Allies and the Axis...
and had a close relationship with Mallory by the late 1960s. In the US, "Eveready" batteries were a trademark of Union Carbide
Energizer Holdings
Energizer Holdings is an American manufacturer of batteries and personal care products, headquartered in Town and Country, Missouri. Its most well known brands are Energizer and Eveready batteries, Schick, Wilkinson Sword and Edge shaving products, Playtex feminine hygiene and baby products, and...
, which had no relationship with P.R. Mallory.
Scientists George Allis and Daniel I. Pomerantz at P. R. Mallory and Co discovered anodic bonding
Anodic bonding
Anodic bonding is a wafer bonding procedure without any intermediate layer. This bonding technique, also known as field assisted bonding or electrostatic sealing, is mostly used for connecting silicon/glass and metal/glass through electric fields...
of glass to silicon. Their work was published in 1969 in the Journal of Applied Physics
Journal of Applied Physics
The Journal of Applied Physics is a peer-reviewed scientific journal published since 1931 by the American Institute of Physics. Its emphasis is on the understanding of the physics underpinning modern technology....
and is protected under U.S. Patent No 3,397,278.
In 1978 the company was purchased by Dart Industries and renamed Duracell
Duracell
Duracell is a brand of batteries manufactured by Procter & Gamble.Additionally, Duracell owns the Procell professional-use brand.-Products:Duracell manufactures alkaline batteries in many common sizes, such as AAA, AA, C, D, and 9V...
after its alkaline battery
Alkaline battery
Alkaline batteries are a type of primary batteries dependent upon the reaction between zinc and manganese dioxide . A rechargeable alkaline battery allows reuse of specially designed cells....
brand introduced in 1964.
See also
- Eveready East AfricaEveready East AfricaEveready East Africa is an affiliate of the American Eveready Battery Company. Founded in 1967 and based in Nakuru, it is one of Africa's largest battery manufacturers and is listed on the Nairobi Stock Exchange.-External links:* *...
- Ucar batteries
- British Ever Ready Electrical Company