Compression contact to monitor fastener elongation and grip force

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 11946500
APP PUB NO 20210040977A1
SERIAL NO

16988515

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Importance

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Abstract

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A clamping force monitoring device is provided having a step washer, a contact plate, a compression washer separating the step washer and the contact plate, a threaded fastener extending through the step washer and the compression washer, a nut and an electric circuit, wherein when a sufficient axial force is exerted in the threaded fastener by engagement of the nut, the compression washer is compressed and the step washer is in contact with the contact plate, thereby closing the electric circuit. A method for monitoring a threaded fastener is provided including extending a threaded fastener through a step washer and a compression washer and engaging the threaded fastener with a nut, wherein when a sufficient axial force is applied to the threaded fastener by the nut, the compression washer is compressed and the step washer contacts a contact plate, thereby closing an electric circuit.

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First Claim

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Patent Owner(s)

Patent OwnerAddress
LOOSE WHEEL SENSORS INC71 INNOVATION DRIVE UNIT 2 WOODBRIDGE ONTARIO L4H 0S3

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hess, Markus Jaan Thornhill, CA 2 7
Sousa, John Carlos Mono, CA 2 7

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