U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Shuttle elevators feeding local elevators

Patent 5823299 Issued on October 20, 1998. Estimated Expiration Date: Icon_subject June 19, 2016. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

1939729

3750849

Passenger transport installation, vehicle for use therein, and method of operating said installation
Patent #: 5090515
Issued on: 02/25/1992
Inventor: Takahashi, et al.

Maintaining communications and power during transfer of horizontally moveable elevator cab Patent #: 5601156
Issued on: 02/11/1997
Inventor: McCarthy, et al.

Inventors

Assignee

Application

No. 666188 filed on 06/19/1996

US Classes:

187/277, With specific electrical component187/249, HAVING INDEPENDENT SUPPORTS CARRYING DISTINCT LOADS AND SHARING COMMON PATH187/401, HAVING SPECIFIC LOAD SUPPORT STRUCTURE OR ARRANGEMENT (E.G., CAR FRAMING)187/414MISCELLANEOUS

Examiners

Primary: Nappi, Robert E.

Foreign Patent References

  • 3-272987 JP 12/13/1991
  • 6-156939 JP 06/13/1994

International Classes

B66B 001/00
B66B 011/02
B66B 009/00

Abstract

A plurality of express shuttle elevators S1-S4 exchange elevator cabs at a transfer floor 26 with local elevators L1-L10 by means of a carriage 107, the casters of which 93 are guided by tracks 70-83. The transfer floor has linear induction motor (LIM) primary segments 60-67 disposed on the transfer floor; the carriage has a LIM secondary 128 thereon for propulsion. The carriages can be locked 91, 92 to the transfer floor for loading, and cabs can be locked 131 onto the carriages for stability when being moved. A controller (FIGS. 10-13) keeps track of the progress of the cabs from one elevator to another.

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