Safety system for restraining movement of elevator car when car doors are open

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 7137484
SERIAL NO

10445431

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Abstract

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A safety system for restraining movement of an elevator car employing a bi-directional safety and an associated car mounted governor with a linkage, between the governor and the elevator car door, including a brake cable and clutch, wherein the governor would operate normally when the elevator car door is closed to set the safety in the event overspeed in either direction. When the door is open more than two (2) inches, for example, the governor would set the safety in the event the car moved more than a predetermined distance.

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Patent Owner(s)

Patent OwnerAddress
INVENTIO AG6052 HERGISWIL

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Martin, Matthew Randolph, NJ 75 434

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