Sharpening Made Easy
Knife Sharpening Information and Equipment
The Blankner Knife Sharpener Co.
The company's name was apparently Blankner
Manufacturing, Inc., but various material refers to Blankner Knife Company
and Blankner Knife Sharpener Co. It was founded in 1928 to make
knife sharpeners and closed in 1933. Address was 208 St. Clair Ave.,
NW, Cleveland, OH. President was William F. Blankner. His son
Fred W. Blankner was V.P.-Treas. Fred later founded Blankner Millenry and
William Blankner is also the inventor of
the Blankner Sealing Machine - to seal line cracks in newly constructed
highways. Mr. Blankner died 7-11-47 at age 83, while still actively
employed in the patent department of Hecker Engineering Co.
The early model - cast iron with 6
Patent number: 1909743
Filing date: Mar 16, 1927
Issue date: May 16, 1933
This sharpener is in the Western
Reserve Historical Society Museum, Cleveland, OH, donated by Steve
The later model - metal stampings with 4 stones.
Patent number: 1894579
Filing date: Jan 12, 1928
Issue date: Jan 17, 1933
Copyright 1996 - 2018 by Steve Bottorff