Power transfer device for a rolling door operator

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 11725422
APP PUB NO 20210214974A1
SERIAL NO

16800705

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A power transfer device for a fire door operator having a pair of drive gears includes a bridge gear box having a drive shaft suitable for being coupled to an external drive. An idle spur gear is fixed to the drive shaft. A pair of spur gears are coupled to the idle spur gear to rotate in response to rotations of the idle spur gear. Spur gear shafts are coupled to the spur gears and arranged to be coupled to the drive gears of the operator so that rotation of the drive shaft by an external drive is translated to simultaneous rotations of the drive gears of the operator.

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First Claim

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Patent Owner(s)

  • ALPINE OVERHEAD DOORS, INC.

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Magro, Sebastian Stony Brook, US 17 297

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