Meter for comparing impact hammers

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 5410905
SERIAL NO

08105053

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Abstract

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An apparatus and method of measuring and comparing actual and relative impact forces of an impact machine to determine the operating parameters of the machine wherein the apparatus includes a vessel containing a fluid, a vessel piston which moves into the vessel in a substantially frictionless manner upon impact by the impact machine to create a force on the fluid in the vessel and a measuring system to measure the forces applied to the apparatus.

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Patent Owner(s)

Patent OwnerAddress
NPK RESEARCH INC7550 INDEPENDENCE DRIVE WALTON HILLS OH 44146 WALTON HILLS OH
NPK CONSTRUCTION EQUIPMENT INC7550 INDEPENDENCE ROAD WALTON OH 44146

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Karani, Ron R 33799 S. Woodland, Chagrin Falls, OH 44022 3 22
Tyrrell, Daniel E 2813 Work Rd., Ravenna, OH 44266 3 37

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