US3353631A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Elevator dispatch control using integrated stop time as a measure of traffic
Assignee: Toledo Scale Corp
•
Filing: 1959-03-30
•
Granted: 1967-11-21
•
Expires: 1979-03-30
Abstract
No abstract record available.
Inventors
- 👤 Raymond A Burgy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 09:45
CPC Classifications
B; B66; B66B; B66B1/00; B66B1/02; B66B1/06; B66B1/14; B66B1/18; B66B1/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
111 words
AN ELEVATOR SYSTEM COMPRISING A CAR, A PLURALITY OF LANDINGS SERVED BY SAID CAR WHILE TRAVELING UPWARD AND DOWNWARD, A SOURCE OF CURRENT, A FIRST AND SECOND CAPACITANCE CONNECTED IN SERIES ACROSS SAID SOURCE, A FIRST AND SECOND RESISTANCE CONNECTED IN SERIES ACROSS SAID SOURCE, A CONNECTION BETWEEN THE JUNCTION OF SAID CAPACITANCES AND THE JUNCTION OF SAID RESISTANCES, MEANS TO ALTER THE RESISTANCE ACROSS SAID FIRST CAPACITANCE DURING STOP TIME FOR UPWARD CAR TRAVEL, MEANS TO ALTER THE RESISTANCE ACROSS SAID SECOND CAPACITANCE DURING STOP TIME FOR DOWNWARD CAR TRAVEL, AND MEANS RESPONSIVE TO THE VOLTAGE ACROSS ONE OF SAID CAPACITANCES FOR ALTERING THE MODE OF OPERATION OF SAID SYSTEM.
Claim 2
Dependent Claim
111 words
AN ELEVATOR SYSTEM COMPRISING A CAR, A PLURALITY OF LANDINGS SERVED BY SAID CAR WHILE TRAVELING UPWARD AND DOWNWARD, A SOURCE OF CURRENT, A FIRST AND SECOND CAPACITANCE CONNECTED IN SERIES ACROSS SAID SOURCE, A FIRST AND SECOND RESISTANCE CONNECTED IN SERIES ACROSS SAID SOURCE, A CONNECTION BETWEEN THE JUNCTION OF SAID CAPACITANCES AND THE JUNCTION OF SAID RESISTANCES, MEANS TO ALTER THE RESISTANCE ACROSS SAID FIRST CAPACITANCE DURING STOP TIME FOR UPWARD CAR TRAVEL, MEANS TO ALTER THE RESISTANCE ACROSS SAID SECOND CAPACITANCE DURING STOP TIME FOR DOWNWARD CAR TRAVEL, AND MEANS RESPONSIVE TO THE VOLTAGE ACROSS ONE OF SAID CAPACITANCES FOR ALTERING THE MODE OF OPERATION OF SAID SYSTEM.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-11-20 | 1971-05-22 | 1971-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-20 | 1975-05-22 | 1975-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-20 | 1979-05-22 | 1979-11-21 | $7700.00 | Window Closed / Lapsed |