US Patent 7896136 Elevator apparatus with brake control device
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Patent abstract
In an elevator apparatus, a brake device is controlled by a brake control device. The brake control device has a first brake control portion for operating the brake device to stop a car as an emergency measure upon detection of an abnormality, and a second brake control portion for reducing a braking force of the brake device when a deceleration of the car becomes equal to or larger than a predetermined value during emergency braking operation of the first brake control portion. The second brake control portion controls the brake device independently of the first brake control portion.
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Patent Inventor Names
Ken-Ichi Okamoto0
Masunori Shibata0
Satoru Takahashi0
Takaharu Ueda0
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US Patent 07896136 Elevator apparatus with brake control device US Patent 7896136 Elevator apparatus with brake control device
Infobox
Patent Number
078961360
Patent Number
78961360
Edits on 22 Mar, 2023
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Infobox
Is a
Patent Jurisdiction
Patent Number
078961360
Date of Patent
March 1, 2011
0Patent Application Number
117943210
Date Filed
March 2, 2006
0Official Website
Patent Primary Examiner
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US Patent 07896136 Elevator apparatus with brake control device
Infobox
Is a
Patent jurisdiction
Patent number
07896136
Date of patent
March 1, 2011
Patent application number
11794321
Date Filed
March 2, 2006
Patent primary examiner
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