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US Patent: 330,974
Corkscrew
Patentees:
Albert Friedmann (exact or similar names) - Milwaukee, WI
Abraham L. Blumenberg (exact or similar names) - Kalamazoo, MI

USPTO Classifications:
81/3.45

Tool Categories:
household : cork extractors : T corkscrews and other straight corkscrews

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
John C. Perkins
J. A. Franklin
Samuel Folz
Ed Vroegindewig

Patent Dates:
Applied: Aug. 18, 1885
Granted: Nov. 24, 1885

Patent Pictures:
Albert Friedmann and Abraham L. Blumenberg patent November 24, 1885
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Description:
The corkscrew is formed of stiff wire, doubled back on itself and twisted to form the handle and shank portion. One end of the wire is shaped to form the corkscrew, and the other end wrapped to form a collar or bead. In use, the corkscrew can be screwed in until the top of the cork beds against the bead, at which point twisting force also turns the cork, releasing side friction and enabling removal.

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