US 3584707 A
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United States Patent  Inventors John Suouo;
Henry C. Savino, both of Hackensack, NJ. [2|] Appl. No. 832,577  Filed June 12, 1969 I .Piris efi s 9- 05 2 395-202195 Pat. No. 3,509,969, which is a continuationin-part of Ser. No. 94,723, Mar. T0, '196'1, Pat. No. 3,256,958, and a continuation-inpart of Ser. No. 110,464, May 16, 1961, Pat. No. 3,292,736. @ Patented June 15, 1971  Assignee Westinghouse Electric Corporation Pittsburgh, Pa.
 AVAILABLE-CAR ELEVATOR SYSTEM 14 Claims, 29 Drawing Figs.
'  0.8. (I l87/29R [5 l] Int. Cl B66!) 1/22  Field of Search [87/29 CONTROLLER CONTROLLER CONTROLLER 56] References Cited UNITED STATES PATENTS 3,187,843 6/1965 Magee 187/29 Primary Examiner- Oris L. Rader Assistant Examiner-W. E. Duncanson, Jr. Att0meysA. T. Stratton and C. L' Freedman ABSTRACT: The floors of a structure having multiple elevator cars are divided into a plurality of zones. When a demand for service is registered from a floor, an available car is assigned to the zone of the demand for the purpose of answering the demand. A car making its last stop in the up direction may become available even though an up floor call is registered in a higher zone. For a down-traveling car a detector responsive to presence of a passenger may prevent selection of the car as available. Registration of a floor call for a predetermined variable time makes it a priority call. A car is selected for basement service in a predetermined order of preference. Under certain conditions, if no car is at or assigned to a certain floor a car may be assigned to such floor. Under emergency conditions each available car may be assigned successively to certain calls.
[ELK l3 ams UP-DIRECTION CAR-CALL-FREE uo-up-noon I CALLS m ZONE EMERGENCY SERVICE BLKI? I BLK u f AVAILABLE CAR DETECTOR SELECTOR 0F ZcAR FOR zone oowu-omccnou QAR-CALL-FREE OR EMPTY CAR BASEMENT INSTANT DISPATCH NO DEMAND RETURN ADJUSTABLE PRIORITY CALLS ZONE SELECTOR BAS CLOSE CAR SELECTOR BASEMENT EXPEDITER HEAVY TRAFFIC OR PRIORITY BASEMENT CALL PATENTEDJUM 51971 34584707 SHEET (31 0F 27 BFI BZI BU BLW3 BLW5 W BU5 I INVENTORS n Suozzo and C. Sovino PATENTEUJumm I 3,584,707
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