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US Patent 5300739 - Cyclically varying an elevator car's assigned group in a system where each group has a separate lobby corridor

US Patent Issued on April 5, 1994
Estimated Patent Expiration Date: Icon_subject May 26, 2012Estimated 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.
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Abstract

Elevator swing cars 37 have doors 50 opening into a low rise lobby service corridor 31 and doors 51 opening into a medium rise lobby service corridor 32 with car panels 52 associated with the low rise group of floors (such as floors 1-13) and car panels 53 associated with floors of the medium rise group of floors (such as floors 14-22). Each swing car is assigned (FIG. 12) to either one of the two groups which it can serve at the conclusion of each run, as the car approaches the lobby, thereby operating an enunciator lantern 56 in the low rise corridor 31 or an enunciator lantern 57 in the medium rise corridor 32, depending upon which rise the elevator has been assigned to for service in the next following run. Similar swing cars 39 relate to the medium rise (32) and the high rise (33). A variety of alternatives and features are disclosed.

Inventor

Assignee

Application

No. 887946 filed on 05/26/1992

US Classes:

187/385, Dispatches load supports from designated landing187/383, Assigns load supports to zones187/398Indicates particular one of plural load supports responding

Examiners

Primary: Stephan, Steven L.
Assistant: Nappi, Robert E.

Attorney, Agent or Firm

US Patent References

4298100, Switching apparatus for a group of elevators or the like
Issued on: 11/03/1981
Inventor: Suss ,   et al.
4836336, Elevator system floor call registering circuit
Issued on: 06/06/1989
Inventor: Schroder
5092430, Method of operating common elevator
Issued on: 03/03/1992
Inventor: Goto, et al.
5183981"Up-peak" elevator channeling system with optimized preferential service to high intensity traffic floors
Issued on: 02/02/1993
Inventor: Thangavelu

Foreign Patent References

  • 1231793 JP. 12/20/1989
  • 4153169 JP 05/20/1992

International Class

B66B 001/18

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