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

Method of operating common elevator

Patent 5092430 Issued on March 3, 1992. Estimated Expiration Date: Icon_subject June 19, 2011. 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

Elevator system
Patent #: 4084661
Issued on: 04/18/1978
Inventor: Quan, et al.

Elevator express priority service
Patent #: 4352412
Issued on: 10/05/1982
Inventor: Bittar ,   et al.

Elevator system
Patent #: 4431086
Issued on: 02/14/1984
Inventor: Moser ,   et al.

Spring for a free-wheel device and assembly comprising such a spring
Patent #: 4766987
Issued on: 08/30/1988
Inventor: Message

High-rise building Patent #: 4918889
Issued on: 04/24/1990
Inventor: Lundstrom, et al.

Inventors

Assignee

Application

No. 717466 filed on 06/19/1991

US Classes:

187/384, Having security or priority preemption feature187/383Assigns load supports to zones

Examiners

Primary: Pellinen, A. D.
Assistant: Colbert, Lawrence E.

Attorney, Agent or Firm

International Class

B66B 001/34

Foreign Application Priority Data

1990-06-22 JP

Abstract

A method of operating a common elevator in a composite building which contains a plurality of types of exclusively used floors provided separately from each other and corresponding to a plurality of objectives, and a plurality of lobby floors provided separately from each other and corresponding to the plurality of types of exclusively used floors comprises the steps of selecting either of a plurality of operation modes respectively corresponding to the plurality of types of exclusively used floors and offering an elevator service only to the corresponding exclusively used floors and to the corresponding lobby floor, determining the presence or absence of users of the elevator in the selected operation mode, and changing over the operation mode to the other operation mode among the plurality of operation modes when it is determined that there is no user.

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