US Patent 10233055 Pneumatic vacuum elevator seal
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Patent abstract
A pneumatic vacuum elevator cylinder has a cabin inserted therein. A structural plate of the cabin has a liner attached thereto. This liner has an integral bumper formed on an external surface thereof for impact the inner surfaces of the pneumatic vacuum elevator cylinder. The bumpers have a variety of features that facilitate the smooth ride of the cabin within the elevator cylinder.
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Patent Inventor Names
Carlos M. Ascua0
Juan Carlos de Ledebur0
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US Patent 10233055 Pneumatic vacuum elevator seal
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Is a
Patent jurisdiction
Patent number
10233055
Date of patent
March 19, 2019
Patent application number
15813347
Date Filed
November 15, 2017
Patent primary examiner
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