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Ho Hum
On June 24, 1976, Johannes Liebscher and Rolf Schülein were issued German
Patent 2,628,352 for a frame type corkscrew with a rollover locking handle. The
very detailed patent contains 15 pages of description and 2 pages of drawings.
On January 23, 1979 the pair received U. S. Patent 4,135,415 for the corkscrew.
The patent was assigned to and manufactured by Leifheit International GmbH in
Nassau, Germany. Here is the abstract of the patent which is just a small portion
of the numerous pages:
A corkscrew includes a support consisting of a supporting ring adapted to
engage a neck of a bottle, and a support bracket connected to the
supporting ring. An elongated spindle
having a cork-engaging helix at its leading
end and a threaded portion at its trailing
end is mounted on the support for turning
relative thereto and also for longitudinal
displacement. A nut engages the threaded
portion of the spindle and has handgrip
portions, and a locking element embraces
the nut and is pivotable relative thereto
between a locking position in which it
connects the nut to the spindle for joint
turning and longitudinal displacement, and
an unlocking position in which it releases
the spindle for longitudinal displacement during the further turning of the
nut. The locking element has an actuating portion which engages an
abutment surface of the support when the helix has penetrated into the
cork to the desired extent, the engagement of the actuating portion with
the surface pivoting the locking element into its unlocking position
whereupon the cork is drawn out of the bottle. A biasing arrangement,
such as a torsion spring, is interposed between the nut and the locking
element, urging the latter towards its locking position. The supporting
ring has an elastic lining which contacts the neck of the bottle.
It just goes on and on and on!