US3630318A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Solid-state elevator-control system
Assignee: ARTHUR H BERNDTSON
•
Filing: 1970-02-13
•
Granted: 1971-12-28
•
Expires: 1990-02-13
Abstract
Abstract A system for registering service calls in an automatic elevatorcontrol system is disclosed wherein a single-wire connection is made between the car and the hall call selectors, and the indicator lights located in a centrally located control panel. That circuit includes a switch in the form of a siliconcontrolled rectifier which provides sufficiently high current to operate several such indicator lamps as well as providing sufficient current to the call above and call below indicating and driving circuits. Also disclosed is a system for deriving control signals for the call above and below circuits which comprises means for comparing the position of the elevator car with a signal derived from the service call registering circuit to direct a control signal to actuate the desired circuit in accord with the relative position of the designated car position and its present position.
Inventors
- 👤 James H Stichweh
- 👤 Stephen A Hornung
- 👤 Paul Duckwall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 13:41
CPC Classifications
B; B66; B66B; B66B1/00; B66B1/34; B66B1/46; B66B1/468; B66B1/02; B66B1/06; B66B1/14; B66B1/16
Claims Analysis
Total Claims: 28
Claim 1
Independent Claim
155 words
An elevator system, comprising a control panel and an elevator car movable between a plurality of landings, control means for moving said elevator car to predetermined ones of said landings and call-registration means for registering calls for elevator service for each of said landings, said callregistration means including landing selection means having at least one selector for each of said landings, a first indicator means for each of said selectors energized upon the operation of a corresponding one of said selectors, a second indicator means in said control panel for each of said selectors, a switch means in said panel for each of said selectors connected for energizing said second indicator means, and a single conductor for each of said selectors operatively connecting a corresponding selector to a corresponding switch means for actuating said switch means in response to the operation of said selector and subsequently establishing a power path for said first indicator means.
Claim 2
Dependent Claim
155 words
An elevator system, comprising a control panel and an elevator car movable between a plurality of landings, control means for moving said elevator car to predetermined ones of said landings and call-registration means for registering calls for elevator service for each of said landings, said callregistration means including landing selection means having at least one selector for each of said landings, a first indicator means for each of said selectors energized upon the operation of a corresponding one of said selectors, a second indicator means in said control panel for each of said selectors, a switch means in said panel for each of said selectors connected for energizing said second indicator means, and a single conductor for each of said selectors operatively connecting a corresponding selector to a corresponding switch means for actuating said switch means in response to the operation of said selector and subsequently establishing a power path for said first indicator means.
Claim 3
Dependent Claim
44 words
The elevator system of claim 1, and including a control means operatively connected to said call-registration means, and a third indicator means connected to at least one of said selectors by said control means for actuation in response to the operation of said selectors.
Claim 4
Dependent Claim
70 words
The elevator system of claim 1, wherein said switch means includes a silicon-controlled rectifier, and including means for applying a first voltage to said second indicator means having a magnitude insufficient to actuate the latter, said rectifier responsive to the actuation of said corresponding selector to supply a second voltage for actuating said second indicator means and further to supply operating power to said first indicator through said single conductor.
Claim 5
Dependent Claim
73 words
The elevator system of claim 1, and including a bias power source located in said control panel, and second and third conductors connected to said power supply for conducting biasing current and voltage to said landing selection means, said selectors remotely located from said control panel and requiring only said first, second, and third conductors for energizing their respective first and second indicator means in response to the actuation of a corresponding selector.
Claim 6
Dependent Claim
40 words
The elevator system of claim 1, and including a conductor means connected to said switch means and to said single conductor for conducting power to said first indicator means for energization in response to the energization of said switch means.
Claim 7
Dependent Claim
38 words
The elevator system of claim 5, wherein said conductor means includes a diode and said switch means includes a silicon-controlled rectifier having a gate input connected to said single conductor and a cathode output connected to said diode.
Claim 8
Dependent Claim
39 words
The elevator system of claim 1, wherein said first indicator means includes an incandescent lamp, and said switch means includes a silicon-controlled rectifier having current capabilities for energizing said incandescent lamp by conducting sufficient current through said single conductor.
Claim 9
Dependent Claim
152 words
The elevator system of claim 1, wherein said landing selection means includes a plurality of said selectors in said elevator car for the registration of car calls, and a plurality of selectors at said landings for the registration of up and down hall-calls for said car, said plurality of switch means each including an output for providing a car or hall call registration signal in response to the operation of a corresponding one of said selectors indicating a landing requiring elevator service, and including a direction control means having a plurality of inputs each connected for receiving said car and hall calL signals and further connected to a pair of direction outputs corresponding to up and down directions respectively, said direction control means effective for selectively conducting said car and hall call registration signals to either of said up or down direction outputs in response to the position of said elevator car.
Claim 10
Dependent Claim
64 words
The elevator system of claim 8, and including an up signal-producing means connected to said up direction output and a down signal-producing means connected to said down-direction output for selectively receiving said call-registration signals and providing up and down running signals, said direction control means effective for actuating only one of said up and down signal-producing means in response to a single call-registration signal.
Claim 11
Dependent Claim
89 words
The elevator system of claim 8, wherein said direction control means includes a plurality of reference points each corresponding to a landing and said up and down hall call-registration signals connected through at least one of said inputs to one side of said reference point and said car call-registration signals connected through at least one of said inputs to said reference point, a reference signal source, and means for selectively connecting said plurality of reference points to said reference signal source in response to the position of said car.
Claim 12
Dependent Claim
66 words
The elevator system of claim 10, wherein said plurality of reference points are interconnected through a plurality of impedance means with said uppermost reference point connected to said up-direction output and said lowermost reference point connected to said down-direction output, said up and down hall call-resistration signals corresponding to a specific landing connected to said reference point through said impedance means corresponding to said specific landing.
Claim 13
Dependent Claim
65 words
The elevator system of claim 10, wherein each said reference point is connected to said up-direction output through a first impedance means and connected to said down-direction output through a second impedance means with said up hall call-registration signals connected to said reference point through said first impedance means and said down hall call-registration signals connected to said reference points through said second impedance means.
Claim 14
Dependent Claim
39 words
The elevator system of claim 10, wherein said reference signal source comprises a ground potential and said reference-point-connecting means includes a ground-connecting switch for selectively connecting said reference points to ground in response to the position of said car.
Claim 15
Dependent Claim
173 words
An elevator system, comprising an elevator car movable between a plurality of landings, control means for moving said elevator car to predetermined ones of said landings, call-registration means for providing car call-registration signals and up and down hall call-registration signals for each of said landings, and a direction control means for actuating said control means, said direction control means including a plurality of inputs connected to receive said call-registration signals provided by said call-registration means, a plurality of reference points each corresponding to a specific landing with at least one of said hall call-registration signals connected to one side of said reference points and said car call-registration signals connected to said reference points, an up and a down direction output connected to said reference points and to said control means, a reference signal source, and means for selectivity connecting said plurality of reference points to said reference signal source in response to the position of said car for selectively conducting said call registration signals to either of said up or down direction outputs.
Claim 16
Dependent Claim
173 words
An elevator system, comprising an elevator car movable between a plurality of landings, control means for moving said elevator car to predetermined ones of said landings, call-registration means for providing car call-registration signals and up and down hall call-registration signals for each of said landings, and a direction control means for actuating said control means, said direction control means including a plurality of inputs connected to receive said call-registration signals provided by said call-registration means, a plurality of reference points each corresponding to a specific landing with at least one of said hall call-registration signals connected to one side of said reference points and said car call-registration signals connected to said reference points, an up and a down direction output connected to said reference points and to said control means, a reference signal source, and means for selectivity connecting said plurality of reference points to said reference signal source in response to the position of said car for selectively conducting said call registration signals to either of said up or down direction outputs.
Claim 17
Dependent Claim
30 words
The elevator system of claim 14, wherein said direction control means is effective for conducting each of said call-registration signals to only one of said up and down direction outputs.
Claim 18
Dependent Claim
72 words
The elevator system of claim 14, wherein said direction control means further includes a conducting line operatively connected between saId up and down direction outputs with each of said plurality of reference points being defined on said conducting line, an input point connected to receive a hall call-registration signal and located on said conducting line spaced from said reference point, and an impedance means connecting said input point to said reference point,
Claim 19
Dependent Claim
74 words
The elevator system of claim 16, wherein said landings include an upper landing, a lower landing and a plurality of intermediate landings, said direction control means further includes a second input point connected at said intermediate landings to receive a hall call-registration signal and located on said conducting line spaced from said reference point opposite to said first input point, and a second impedance means connecting said reference point to said second input point.
Claim 20
Dependent Claim
40 words
The elevator system of claim 14, wherein said reference signal source comprises a ground potential and said reference-point-connecing means includes a ground connecting switch for selectively connecting said reference points to ground in response to the position of said car.
Claim 21
Dependent Claim
125 words
An elevator system, comprising an elevator car movable between a plurality of landings, control means for moving said elevator car between predetermined ones of said landings and for initiating a stopping sequence, call-registration means including a landing selection means having at least one selector for each of said landings for registering service demand for elevator service for each of said landings and providing call-registration signals to said control means, a reference signal source, a position-responsive means for providing a position signal indicative of the location of said elevator car with respect to said landings, and a conductive means response to said call-registration signal for selectively conducting said position signal to said reference signal source and to said control means for selectively initiating a stopping sequence.
Claim 22
Dependent Claim
125 words
An elevator system, comprising an elevator car movable between a plurality of landings, control means for moving said elevator car between predetermined ones of said landings and for initiating a stopping sequence, call-registration means including a landing selection means having at least one selector for each of said landings for registering service demand for elevator service for each of said landings and providing call-registration signals to said control means, a reference signal source, a position-responsive means for providing a position signal indicative of the location of said elevator car with respect to said landings, and a conductive means response to said call-registration signal for selectively conducting said position signal to said reference signal source and to said control means for selectively initiating a stopping sequence.
Claim 23
Dependent Claim
97 words
The elevator system of claim 19, wherein said call-registration means includes a first switch means for each of said selectors connected for providing said call-registration signal, and further including a stopping responsive means for providing a call-cancelling signal, a second switch means connected for receiving said call-cancelling signal and providing an extinguishing signal, and a third switch means having an input connected to said second switch means and an output connected to said first switch means for conducting said extinguishing signal to said first switch means in response to said position signal for removing said call-registration signal.
Claim 24
Dependent Claim
97 words
The elevator system of claim 19, wherein said call-registration means includes a silicon-controlled rectifier having a gate input selectively energized by said selector and a cathode output for supplying said call-registration signal, said conductive means including first and second diodes, respectively, each having anodes mutually connected to said position-responsive means, said first diode having a cathode connected to said controlled rectifier cathode and to said reference signal source, and said second diode having a cathode connected to said control means with said first and second diodes selectively conducting said position signal in response to said call-registration signal.
Claim 25
Dependent Claim
93 words
The elevator system of claim 21, and including a stopping responsive means for providing a call-cancelling signal, and a second switch means including a second silicon-controlled rectifier having an anode connected to receive said call-cancelling signal and a cathode connected to said first mentioned controlled rectifier cathode through a third diode, said second controlled rectifier having a gate input connected to the juncture of said first and second diodes to receive said position signal for selectively conducting said call-cancelling signal to back-bias said first controlled rectifier into nonconduction and extinguish said call-registration signal.
Claim 26
Dependent Claim
140 words
An elevator system, comprising a control Panel and an elevator car movable between a plurality of landings, control means for moving said elevator car to predetermined ones of said landings and call-registration means for registering calls for elevator service for each of said landings, said call-registration means including landing selection means having at least one selector for each of said landings, a first indicator means for each of said selectors energized upon the operation of a corresponding one of said selectors, a switch means in said panel for each of said selectors for providing a call-registration output, and a single conductor for each of said selectors operatively connecting a corresponding selector to a corresponding switch means for actuating said switch means in response to the operation of said selector and subsequently establishing a power path for said first indicator means.
Claim 27
Dependent Claim
140 words
An elevator system, comprising a control Panel and an elevator car movable between a plurality of landings, control means for moving said elevator car to predetermined ones of said landings and call-registration means for registering calls for elevator service for each of said landings, said call-registration means including landing selection means having at least one selector for each of said landings, a first indicator means for each of said selectors energized upon the operation of a corresponding one of said selectors, a switch means in said panel for each of said selectors for providing a call-registration output, and a single conductor for each of said selectors operatively connecting a corresponding selector to a corresponding switch means for actuating said switch means in response to the operation of said selector and subsequently establishing a power path for said first indicator means.
Claim 28
Dependent Claim
22 words
The elevator system of claim 23, wherein said call-registration output is connected to said control means for controlling movement of said car.
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) | 1974-12-27 | 1975-06-28 | 1975-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-27 | 1979-06-28 | 1979-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-27 | 1983-06-28 | 1983-12-28 | $7700.00 | Window Closed / Lapsed |