Is a
Patent attributes
Patent Applicant
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Richard D. Peters0
Rory S. Smith0
Bruce Powell0
Gerhard Thumm0
Randolph W. Huff0
Date of Patent
May 27, 2014
0Patent Application Number
137960210
Date Filed
March 12, 2013
0Patent Citations Received
Patent Primary Examiner
Patent abstract
An elevator system includes at least two independently operable elevator cars in each elevator shaft of the system. The elevator shaft may include a first and a second region, with the first region extending from a ground level to sub-ground levels, and with the second region extending from the ground level to a top floor. A first elevator car may move within the first region and a second elevator car may move within the second region, in the same shaft independently of each other.
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