Foundation screw with portions of variable diameter

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 8484909
APP PUB NO 20120117893A1
SERIAL NO

13289780

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Abstract

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A foundation screw with a tubular basic body having an encompassing helical screw thread for screwing into the ground. The foundation screw has a substantially cylindrical first longitudinal portion and a tapering second longitudinal portion. The first longitudinal portion merges tangentially with a convex jacket region of the second longitudinal portion having a radius of convexity R1, which has at least one value of the tube diameter D of the first longitudinal portion.

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Patent Owner(s)

Patent OwnerAddress
KRINNER INNOVATION GMBH94342 STRASSKIRCHEN

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Thurner, Guenther Straβkirchen, DE 11 104
Thurner, Martin Straβkirchen, DE 12 82

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