Elevator car door interlock

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 11247872
APP PUB NO 20200122978A1
SERIAL NO

16163003

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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An elevator car door interlock includes a first link assembly having a first intermediate link movably connected to a first vane, and a first link having a first link first end pivotally connected to the first intermediate link and a first link second end pivotally connected to the second vane. A latch assembly includes a door latch pivotally connected to the baseplate wherein responsive to operation of a drive mechanism that is drivably connected to the first link second end, while an interlock roller engages at least one of the first vane and the second vane, the first vane moves towards the second vane and the door latch pivots to unlock an elevator car door.

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First Claim

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Family

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Patent Owner(s)

  • OTIS ELEVATOR COMPANY

International Classification(s)

  • [Classification Symbol]
  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kulak, Richard E Niantic, US 41 351
Tracey, Michael J Cromwell, US 32 195

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3.5 Year Payment $1600.00 $800.00 $400.00 Aug 15, 2025
7.5 Year Payment $3600.00 $1800.00 $900.00 Aug 15, 2029
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