US Patent 7311179 Elevator dampening system
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Patent Inventor Names
Samuel H. Franklin0
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Patent abstract
A dampening device for use with elevator cars or similar devices prevents damage to objects or persons within the elevator car upon failure of a drive chain. A hydraulic motor regulates the rate of descent. The dampening motor is monitored constantly using a pressure gauge.
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US Patent 07311179 Elevator dampening system US Patent 7311179 Elevator dampening system
Infobox
Patent Number
073111790
Patent Number
73111790
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Patent Jurisdiction
Patent Number
073111790
Date of Patent
December 25, 2007
0Patent Application Number
107607510
Date Filed
January 20, 2004
0Official Website
Patent Primary Examiner
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US Patent 07311179 Elevator dampening system
Infobox
Is a
Patent jurisdiction
Patent number
07311179
Date of patent
December 25, 2007
Patent application number
10760751
Date Filed
January 20, 2004
Patent primary examiner
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