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    ALKALINE DRY-CELL PATENT
    November 15, 1960 - U.S.A.

    A U.S. patent was issued for an alkaline dry-cell to P.A. Marsal, Karl Kordesch and Lewis F. Urry who assigned it to the Union Carbide Corporation, the manufacturer of Eveready batteries (No. 2,960,558). Compared to the existing carbon-zinc dry-cells, it offered an appreciable increase in life-span and efficiency during heavy continuous drains. Its construction used an alkaline electrolyte, manganese dioxide as depolarizer, a zinc powder-gel anode, and certain additives such including mercury and electrolyte-creep inhibitors. The patent gave practical details for commercial production. The patent claimed that whereas four cells in series of the carbon-zinc type gave 4.5 volts to power a 1.25-amp bulb for 45-min to 1-hr, the new alkaline design gave good brilliance after 6 to 7 hours.

    DRY-CELL PATENT
    November 15, 1887 - U.S.A.

    German scientist, Dr. Carl Gassner, was issued a U.S. patent (No. 373,064), the first in the U.S. for a "dry" cell. Gassner had already patented his invention in Germany (No. 37,758) on 8 Apr 1886, and also in Austria, Belgium, England, France and Hungary in the same year. The sealed zinc shell which contained all the chemicals was also the negative electrode. Later, he improved the shelf life of the battery by adding zinc chloride to the electrolyte to reduce corrosion of the zinc shell. Gassner's battery was much like the carbon-zinc, general-purpose batteries sold today. By 1896, the National Carbide Company (later Union Carbide and Eveready) produced the first consumer dry cell battery. Two years later, the company made the first D cell.

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Website preview thumbnail for : Goal Line Athletics
Our objective is providing youth football organizations with great products, services, and prices. We do this with the utmost honesty and integrity. We strive to establish long term relationships w...
http://www.goallineathletics.com
Website preview thumbnail for : Football Helmets Plus
We offer a wide variety of football helmets both on the professional level and the college level. We have the NFL and NCAA Replica helmets and Authentic helmets all of them from the Riddell brand. ...
http://www.footballhelmetsplus.com
Website preview thumbnail for : Two Seasons
Two Seasons is the fastest growing UK based stockist of ski, snowboard, surf, skate, urban and street clothing and footwear.
http://www.twoseasons.co.uk
Website preview thumbnail for : Yeti Coolers
A YETI Cooler's combine very thick insulation with a quality sealing gasket gives YETI cooler superior ice retention.
http://www.yeticoolers.com
Website preview thumbnail for : Eight Foot Trampolines
Providing 8ft, 10ft and 12ft trampolines at affordable prices. All of our trampolines come complete with a free safety enclosure and ladder. They are made by leading manufacturer Airking and are ma...
http://www.8fttrampolines.co.uk
Website preview thumbnail for : Tennis Universal
Industry leader for Do-It-Yourself premium court paints and repair products for tennis and basketball, asphalt and concrete courts.
http://www.tennisuniversal.com

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Website preview thumbnail for : Victor And Percy
Victor Voltage, Percy Pipe and René Renewable feature in a range of free pre-school educational resources that aim to help children’s early development. Each month more free early learning resou...
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A leader of Urban Connection provide Mens Tall Tees Shirts, Tall T-Shirts, Hip Hop Tshirts, Urban Tees, Tall Tshirts, Long T-Shirts, Long tees, Polo Shirt in USA from Brandedbasics.
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Each quarter, twenty general or topical web directories are evaluated and rated according to predetermined criteria. The top ten are placed in competition with one another and ten additional direct...
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Management talk provide attractive and colorful poster design on different management topics like- customer satisfaction, crm posters, tpm posters, safety, safe lofting posters, success posters ava...
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