US3743057A
Expired / Lapsed
US
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Elevator recall control with interfloor traffic control
Assignee: Reliance Electric Co
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Filing: 1971-06-10
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Granted: 1973-07-03
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Expires: 1991-06-10
Abstract
Abstract An elevator control for systems in which cars ordinarily run only to those hall calls specifically assigned to the individual cars wherein cars are automatically recalled to a primary service floor at which there is a high rate of passenger entries. The service from the primary service floor is enhanced by restricting response of the cars to hall calls. One restriction level is to eliminate service to all hall calls, another to eliminate service to certain hall calls, a third to permit only a limited number of cars departing from the primary service floor to serve hall calls in either the entire range or the restricted range. Where there are special floors served by less than all cars in the group, the cars permitted to serve hall calls can be made to include cars capable of serving those special floors. Cars are recalled only when they have concluded their service in traveling from the primary service floor. Recall service can be established by manual or clock controlled switch or by sensing a condition indicative of a need for such service. One such condition is a count of car calls in ascending cars where recall is to a lower main floor.
Inventors
- 👤 D Hall
- 👤 R Lauer
- 👤 G Robaszkiewicz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 06:10
CPC Classifications
B; B66; B66B; B66B1/00; B66B1/02; B66B1/06; B66B1/14; B66B1/18; B66B1/20
Claims Analysis
Total Claims: 34
Claim 1
Independent Claim
100 words
An elevator control comprising a plurality of cars serving a plurality of floors wherein each car has a plurality of car call means for registering calls for floor stops desired by passengers therein comprising first means for scanning a plurality of said cars individually for interrogation; second means for scanning each car call means for each of a plurality of said cars during the interval said first scanning means is interrogating said car; and count means for accumulating a count of registered car calls for a plurality of said cars from said second means for scanning each car call means.
Claim 2
Dependent Claim
100 words
An elevator control comprising a plurality of cars serving a plurality of floors wherein each car has a plurality of car call means for registering calls for floor stops desired by passengers therein comprising first means for scanning a plurality of said cars individually for interrogation; second means for scanning each car call means for each of a plurality of said cars during the interval said first scanning means is interrogating said car; and count means for accumulating a count of registered car calls for a plurality of said cars from said second means for scanning each car call means.
Claim 3
Dependent Claim
24 words
An elevator control according to claim 1 including means rendering said count of car calls effective only for cars having a predetermined service condition.
Claim 4
Dependent Claim
20 words
An elevator control according to claim 2 wherein said service condition is the setting of said cars for travel upward.
Claim 5
Dependent Claim
112 words
An elevator control according to claim 1 including a master clocking means issuing clocking signals first sequencing controls for said first scanning means responsive to said master clocking means to advance from one car to another car in response to a predetermined clocking signal; second sequencing controls for said second scanning means responsive to said master clocking means intermediate advances by said first sequencing control to advance from one car call means to another car call means for a given car in response to said clocking signals; and means responsive to a coincidence of said clocking signal means with a car call means for a registered call to actuate said count means.
Claim 6
Dependent Claim
25 words
An elevator control according to claim 1 comprising means responsive to a given count by said count means to alter operation of the elevator cars.
Claim 7
Dependent Claim
26 words
An elevator control according to claim 5 including means for latching a signal to alter operation of the elevator cars in response to said given count.
Claim 8
Dependent Claim
31 words
An elevator control according to claim 5 including means responsive to a second given count less than said first mentioned given count to maintain the altered operation of the elevator cars.
Claim 9
Dependent Claim
111 words
An elevator control according to claim 6 including means responsive to a second given count less than said first mentioned given count to sustain said latching means; means responsive at a first scan position near the end of a scan of said plurality of cars by said first scanning means with less than said given count for enabling the reset of said latching means; and means responsive at a second scan position subsequent to said first scan position at the end of a scan of said plurality of cars by said first scanning means and coincident with the enabling of the reset of said latching means for resetting said latching means.
Claim 10
Dependent Claim
88 words
In an elevator system having a plurality of cars, means for counting service functions for said plurality of cars which can occur a multiplicity of times for each car comprising first means for sequentially interrogating a car to detect said service functions for said car; second means for sequentially enabling said interrogating means for each of a plurality of said cars; and a service function counter to accumulate a count of said detected service functions for a plurality of cars during the interrogation of said plurality of cars.
Claim 11
Dependent Claim
88 words
In an elevator system having a plurality of cars, means for counting service functions for said plurality of cars which can occur a multiplicity of times for each car comprising first means for sequentially interrogating a car to detect said service functions for said car; second means for sequentially enabling said interrogating means for each of a plurality of said cars; and a service function counter to accumulate a count of said detected service functions for a plurality of cars during the interrogation of said plurality of cars.
Claim 12
Dependent Claim
123 words
In an elevator system according to claim 9 a ring counter having a number of activatable states in its cycle at least equal to the number of service functions per car to be counted; said first means having a plurality of elements each transferable between a first and a second condition in response to respective ones of said service functions and a means for reading the state of each element responsive to the activation of a corresponding state of said ring counter; said second means having a gating means for each car for coupling said reading means of each car to said service function counter; and means to individually enable said gating means in response to a scanning sequence of said ring counter.
Claim 13
Dependent Claim
56 words
In an elevator system according to claim 10, a third counter to count a predetermined number of the scan cycles of said ring counter at least equal to the number of cars in said plurality and means to reset said service function counter in response to said third counter counting said predetermined number of scan cycles.
Claim 14
Dependent Claim
42 words
In an elevator system according to claim 9 a latch means responsive to a predetermined number of service function counts from said service function counter; and means to reset said latch means in response to a predetermined condition in said elevator system.
Claim 15
Dependent Claim
72 words
In an elevator system according to claim 12 including a second latch means responsive to a second predetermined number of service function counts from said service function counter which is less than said first mentioned predetermined number of counts; reset means for said second latch means responsive to a predetermined condition in said elevator system; and wherein said first mentioned reset means is enabled by the reset of said second latch means.
Claim 16
Dependent Claim
116 words
In an elevator system according to claim 13 a ring counter having a number of activatable states in its cycle at least equal to the number of service functions per car to be counted; means for each car responsive to the activation of a service function and corresponding state of said ring counter to issue a count to said service function counter; wherein said predetermined condition to reset said second latch means is the activation of a first predetermined state in said ring counter and a service function count less than said predetermined number; and wherein said first mentioned reset means is actuated by said ring counter subsequent to the reset of said second latch Means.
Claim 17
Dependent Claim
141 words
An elevator system having a plurality of floors including a given floor subjected to intense entering traffic comprising means to register calls for floors; means to assign individual calls to individual cars while said cars are spaced from the floors of said calls; means to park each car at any of a plurality of floors when no calls for service are imposed thereon; means selectively operable to inhibit the assignment of calls by said assigning means to a plurality of cars; means conditioning a car to load passengers at said given floor; means for registering a call for said given floor automatically in response to absence of a car conditioned to load passengers at said floor; and means responsive when said assigning means processes said automatically registered call for enabling said inhibited assigning means to assign said call to a car.
Claim 18
Dependent Claim
141 words
An elevator system having a plurality of floors including a given floor subjected to intense entering traffic comprising means to register calls for floors; means to assign individual calls to individual cars while said cars are spaced from the floors of said calls; means to park each car at any of a plurality of floors when no calls for service are imposed thereon; means selectively operable to inhibit the assignment of calls by said assigning means to a plurality of cars; means conditioning a car to load passengers at said given floor; means for registering a call for said given floor automatically in response to absence of a car conditioned to load passengers at said floor; and means responsive when said assigning means processes said automatically registered call for enabling said inhibited assigning means to assign said call to a car.
Claim 19
Dependent Claim
127 words
An elevator system having a plurality of floors including a given floor subjected to intense entering traffic comprising means to register calls for floors; means to assign individual calls to individual cars while said cars are spaced from the floors of said calls; means to park each car at any of a plurality of floors when no calls for service are imposed thereon; means selectively operable to inhibit the assignment of calls by said assigning means to a plurality of cars; means to count the departure of cars from said given floor; and means responsive to each successive departure of a predetermined number of cars from said given floor to enable the next car departing therefrom to accept assignment of an individual call from said assigning means.
Claim 20
Dependent Claim
127 words
An elevator system having a plurality of floors including a given floor subjected to intense entering traffic comprising means to register calls for floors; means to assign individual calls to individual cars while said cars are spaced from the floors of said calls; means to park each car at any of a plurality of floors when no calls for service are imposed thereon; means selectively operable to inhibit the assignment of calls by said assigning means to a plurality of cars; means to count the departure of cars from said given floor; and means responsive to each successive departure of a predetermined number of cars from said given floor to enable the next car departing therefrom to accept assignment of an individual call from said assigning means.
Claim 21
Dependent Claim
27 words
A system according to claim 16 wherein said assignment enabling means is maintained effective for said enabled car until said car is returned to said given floor.
Claim 22
Dependent Claim
35 words
A system according to claim 17 including means limiting the number of cars enabled to receive assignment of calls at any given instant of time to a number less than all cars in the system.
Claim 23
Dependent Claim
79 words
An elevator system having a plurality of cars serving a plurality of floors including a given floor subjected to intense entering traffic comprising means to register calls for floors, assignment means for assigning individual registered calls to individual cars while said cars are spaced from the floors of said calls; and means selectively operable to inhibit assignment of calls by said assigning means to a plurality of said cars throughout a trip from and return to said given floor.
Claim 24
Dependent Claim
79 words
An elevator system having a plurality of cars serving a plurality of floors including a given floor subjected to intense entering traffic comprising means to register calls for floors, assignment means for assigning individual registered calls to individual cars while said cars are spaced from the floors of said calls; and means selectively operable to inhibit assignment of calls by said assigning means to a plurality of said cars throughout a trip from and return to said given floor.
Claim 25
Dependent Claim
42 words
A system according to claim 19 including means responsive to a predetermined traffic condition indicative of a given level of traffic seeking service from said given floor; and wherein said selectively operable means is operated in response to said predetermined traffic condition.
Claim 26
Dependent Claim
72 words
A system accrding to claim 19 including means conditioning a car to load passengers at said given floor; means for registering a call for said given floor automatically in response to absence of a car conditioned to load passengers at said floor; means responsive when said assigning means processes said automatically registered call for disabling said assignment inhibiting means whereby said assigning means is enabled to assign said call to a car.
Claim 27
Dependent Claim
53 words
A system according to claim 19 including means to count the departure of cars from said given floor; and means responsive to each successive departure of a predetermined number of cars from said given floor to enable the next car departing therefrom to accept assignment of an individual call from said assigning means.
Claim 28
Dependent Claim
27 words
A system according to claim 22 wherein said assignment enabling means is maintained effective for said enabled car until said car is returned to said given floor.
Claim 29
Dependent Claim
35 words
A system according to claim 23 including means limiting the number of cars enabled to receive assignment of calls at any given instant of time to a number less than all cars in the system.
Claim 30
Dependent Claim
78 words
An elevator system having a plurality of cars serving a plurality of floors including a given floor, compriSing means to register calls for floors, said calls being answerable by each of a plurality of said cars; means selectively operable to inhibit the response of cars to said registered calls; means responsive to each successive departure of a predetermined number of cars from said given floor to enable the next car departing therefrom to respond to said registered calls.
Claim 31
Dependent Claim
78 words
An elevator system having a plurality of cars serving a plurality of floors including a given floor, compriSing means to register calls for floors, said calls being answerable by each of a plurality of said cars; means selectively operable to inhibit the response of cars to said registered calls; means responsive to each successive departure of a predetermined number of cars from said given floor to enable the next car departing therefrom to respond to said registered calls.
Claim 32
Dependent Claim
16 words
A system according to claim 25 wherein said predetermined number of cars is greater than one.
Claim 33
Dependent Claim
29 words
A system according to claim 25 wherein said enabling means is effective for said next car departing from said given floor until said car returns to said given floor.
Claim 34
Dependent Claim
36 words
A system according to claim 25 including means limiting the number of cars enabled to respond to said registered calls at any given instant of time to a number less than all cars in the system.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-07-02 | 1977-01-01 | 1977-07-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-02 | 1981-01-01 | 1981-07-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-02 | 1985-01-01 | 1985-07-03 | $7700.00 | Window Closed / Lapsed |