US3616874A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Car stop counter and car reset circuit
Assignee: ARTHUR H BERNDTSON
•
Filing: 1969-11-28
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Granted: 1971-11-02
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Expires: 1989-11-28
Abstract
Abstract A circuit includes a charging means to sense the number of stops made by an elevator in response to car calls at which there are no passenger transfers made. After a predetermined number of such stops are made, the remaining car calls are automatically cancelled.
Inventors
- 👤 James H Stichweh
- 👤 Stephen A Hornung
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 18:08
CPC Classifications
B; B66; B66B; B66B1/00; B66B1/02; B66B1/06; B66B1/14
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
81 words
In an elevator control system, a circuit for resetting the car calls upon the sensing of a predetermined number of nuisance car calls, said circuit comprising means including a charging means effective to sense the number of car calls made, means effective to sense the number of passenger transfers from the elevator car, and means actuated upon the number of sensed car calls exceeding the number of passenger transfers and effective when so actuated to reset the previously made car calls.
Claim 2
Dependent Claim
81 words
In an elevator control system, a circuit for resetting the car calls upon the sensing of a predetermined number of nuisance car calls, said circuit comprising means including a charging means effective to sense the number of car calls made, means effective to sense the number of passenger transfers from the elevator car, and means actuated upon the number of sensed car calls exceeding the number of passenger transfers and effective when so actuated to reset the previously made car calls.
Claim 3
Dependent Claim
21 words
The circuit of claim 1, in which said resetting means comprises switching means operatively connected to said car call sensing means.
Claim 4
Dependent Claim
26 words
The circuit of claim 2, in which said passenger transfer sensing means comprises means effective when actuated by a passenger transfer to discharge said charging means.
Claim 5
Dependent Claim
38 words
The circuit of claim 3, in which said charging means comprises first capacitance means, and second capacitance means operatively connected to said first capacitance means and defining therewith a capacitive voltage divider operatively connected to said switching means.
Claim 6
Dependent Claim
55 words
The circuit of claim 4, in which said switching means comprises semiconductor means having a control terminal operatively connected to said second capacitor, the charge on said second capacitor being incrementally increased for each of said sensed car calls, said semiconductor means being actuated when the charge on said second capacitor reaches a predetermined level.
Claim 7
Dependent Claim
42 words
The circuit of claim 4, further comprising variable means operatively connected to said switching means and effective to preset said switching means, thereby to establish the number of excess car calls relative to said passenger transfer required to actuate said switching means.
Claim 8
Dependent Claim
34 words
The circuit of claim 6, further comprising a resistor having a relatively high-resistance value operatively connected to said second capacitance means and effective to provide a relatively slow discharge path for said charging means.
Claim 9
Dependent Claim
42 words
The circuit of claim 5, further comprising variable means operatively connected to said switching means and effective to preset said switching means, thereby to establish the number of excess car calls relative to said passenger transfer required to actuate said switching means.
Claim 10
Dependent Claim
42 words
The circuit of claim 3, further comprising variable means operatively connected to said switching means and effective to preset said switching means, thereby to establish the number of excess car calls relative to said passenger transfer required to actuate said switching means.
Claim 11
Dependent Claim
42 words
The circuit of claim 1, further comprising variable means operatively connected to said resetting means and effective to preset said resetting means, thereby to establish the number of excess car calls relative to said passenger transfer required to actuate said resetting means.
Claim 12
Dependent Claim
34 words
The circuit of claim 4, further comprising a resistor having a relatively high-resistance value operatively connected to said second capacitance means and effective to provide a relatively slow discharge path for said charging means.
Claim 13
Dependent Claim
33 words
The circuit of claim 3, further comprising means effective to discharge said charging means at a relatively slow rate whenever said passenger transfer sensing means is not effective to discharge said charging means.
Claim 14
Dependent Claim
26 words
The circuit of claim 1, in which said passenger transfer sensing means comprises means effective when actuated by a passenger transfer to discharge said charging means.
Claim 15
Dependent Claim
32 words
The circuit of claim 13, in which said charging means comprises first capacitance means, and second capacitance means operatively connected to said first capacitance means and defining therewith a capacitive voltage divider.
Claim 16
Dependent Claim
34 words
The circuit of claim 14, further comprising a resistor having a relatively high-resistance value oPeratively connected to said second capacitance means and effective to provide a relatively slow discharge path for said charging means.
References Cited (Backward Citations)
US3519102A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-11-01 | 1975-05-03 | 1975-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-01 | 1979-05-03 | 1979-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-01 | 1983-05-03 | 1983-11-02 | $7700.00 | Window Closed / Lapsed |