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The twist-key can-opener was patented by J. Osterhoudt in 1866. [7] There still was no general-purpose can-opener, thus each can came with a spot-welded or soldered-on twist-key can-opener which snapped off after fatiguing the metal by bending at a thin region. Each food-type had its own can-type, and came with its own can-opener-type.
A drawing from the can opener patent No 19063 by Warner. Ezra J. Warner of Waterbury, Connecticut was an American inventor, who patented his design of a can opener in 1858. A crudely shaped bayonet and sickle combo, his design was widely accepted by the U.S. military during the period of the American Civil War.
The top of the can was cut by pressing the cutting wheel into the can near the edge and rotating it along the can's rim. [5] The need to pierce the can first was a nuisance, and this can opener design has not survived. In 1925, a modern-style opener, equipped with an additional serrated wheel, was invented to improve Lyman's design. [3]
From electric wine openers that pop corks at the touch of a button to LED glasses that look like they were stolen from a cyberpunk fashion show, these innovations aren't just cool toys – t
Fraze decided to create an improved beverage opening method that would eliminate the need for a separate device, leading to his creation of the pull-tab opener. His first design included a lever that pierced a hole in the top of the can, but this caused a safety hazard as it produced sharp edges that could cut the user's finger.
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