IP Library Granted Patent US 8,397,873
Granted Patent B2
US 8,397,873 · App. 13/332,540 · Granted Mar 19, 2013

Zoned elevator system

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Quick Facts
Patent No.
US 8,397,873
App. No.
13/332,540
Granted
Mar 19, 2013
Kind
B2
Abstract

An elevator system includes at least two independently operable elevator cars in an elevator shaft. The elevator system controls loading of one of the car at ground floor level by moving the other car to a level below the ground floor level.

Claims (8)

1. A method of operating an elevator system comprising a first and a second independently operable elevator car within each at least one elevator shaft within a building, the method comprising the steps of:

a. assigning the first elevator to operate within a first region of the at least one elevator shaft;

b. assigning the second elevator to operate within a second region of the at least one elevator shaft, wherein the second region is located above the first region;

c. loading the first and the second elevator car from a ground floor level; and

d. controlling the loading of the second elevator car from the ground floor by moving the first elevator below the level of the ground floor to a lower level zone.

2. The method according to claim 1 , wherein the lower level zone comprises a virtual landing.

3. The method according to claim 1 , wherein the lower level zone comprises at least one sub-ground level.

4. The method according to claim 3 , wherein the at least one sub-ground level is a parking level.

Assignments (3)
CORRECTIVE ASSIGNMENT TO CORRECT THE CONVEYING PARTY DATA PREVIOUSLY RECORDED ON REEL 029219 FRAME 0366. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT. Recorded Nov 19, 2012
From: THYSSEN ELEVATOR CAPITAL CORP.
To: THYSSENKRUPP ELEVATOR CORPORATION
Reel/Frame 029476/0764 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 31, 2012
From: THYSSENKRUPP ELEVATOR CAPITAL CORPORATION
To: THYSSENKRUPP ELEVATOR CORPORATION
Reel/Frame 029219/0366 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 1, 2012
From: SMITH, RORY S.; HUFF, RANDOLPH W.; PETERS, RICHARD D.; POWELL, BRUCE; THUMM, GERHARD
To: THYSSEN ELEVATOR CAPITAL CORP.
Reel/Frame 027630/0247 →