Elevator car door control system

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 11772937
APP PUB NO 20230271810A1
SERIAL NO

17680611

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Importance

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Abstract

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An elevator car door control system includes a clutch and an interlock assembly. The clutch may include a stationary base and a slidable base movably attached to the stationary base. The stationary base may be adapted for attachment to a car door of an elevator car. The interlock assembly may include a locking arm operatively connected to the slidable base of the clutch and moveable from a locked position preventing translation relative to the elevator car to an unlocked position. When the car door is in a closed position, a door opening sequence may commence causing the slidable base to move relative to the car door, but the car door will only open if the slidable base presses against an object, such as a roller on a hoistway door, in which case the locking arm of the interlock assembly moves from the locked to the unlocked position.

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First Claim

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Family

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Patent Owner(s)

  • G.A.L. MANUFACTURING COMPANY, LLC

International Classification(s)

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  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bosshart, Stephen Brooklyn, US 5 2
Goodwin, Andrew New York, US 21 309
MacKenzie-Smith, Charles Astoria, US 3 2
Perillo, Matthew Brooklyn, US 1 0

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