When Herbert Allen '29 travels to Europe in 1951, he tastes wine for the first time and kindles a passion. In 1975, his wife has a particularly frustrating experience opening a bottle of wine and presents her husband with the engineering challenge of a lifetime — to produce a corkscrew to extract the cork effortlessly and perfectly every time. By 1979 he succeeds and secures U.S. Patent 4,276,789 on July 7, 1981. During his lifetime, at least 389 U.S. and foreign patents list Allen as the sole or joint inventor.


Screwpull on a bottle of wine
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