US4375249A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Floor selector system for elevator system
Assignee: Mitsubishi Electric Corp
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Filing: 1980-10-24
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Granted: 1983-03-01
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Expires: 2000-10-24
Abstract
Abstract A floor selector comprises a first and a second switch on an elevator car, a vertical array of first switch actuators each disposed between each pair of adjacent floors in a hoistway, and another vertical array of second switch actuators located below the first actuators in the hoistway. When the first switch engages each of the first actuators, a synchronized floor is renewed by adding one floor to the preceding synchronized floor read out from an RAM by a micro-processor and written into the RAM. When the second switch engages each of the second actuators, an advanced floor in advance of the synchronized floor is renewed by adding two floors to the preceding advanced floor read out from the RAM by the micro-processor and written into the RAM.
Inventors
- 👤 Ryuichi Kajiyama
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 13:51
CPC Classifications
B; B66; B66B; B66B1/00; B66B1/34; B66B1/46; B66B1/52
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
183 words
A floor selector for an elevator system having an elevator car traveling within a hoistway extending through a plurality of floors disposed at predetermined equal intervals one above another, comprising: means including an electronic computer for sensing successively synchronized floors displayed in synchronization with the travel of said elevator and advanced floors in advance of associated synchronized floors and for delivering signals for said synchronized and advanced floors wherein there are provided a first and a second switch actuator disposed between each pair of adjacent floors within said hoistway; first calculation means responsive to the passage of said elevator car through said first switch actuator so as to calculate the synchronized floor by effecting the addition or subtraction of one floor by means of said electronic computer, and second calculation means responsive to one of either the start of said elevator car or to the passage of said elevator car through said second switch actuator so as to calculate said advanced floor by adding or subtracting a predetermined number of floors to or from said synchronized floors by means of said electronic computer.
Claim 2
Dependent Claim
183 words
A floor selector for an elevator system having an elevator car traveling within a hoistway extending through a plurality of floors disposed at predetermined equal intervals one above another, comprising: means including an electronic computer for sensing successively synchronized floors displayed in synchronization with the travel of said elevator and advanced floors in advance of associated synchronized floors and for delivering signals for said synchronized and advanced floors wherein there are provided a first and a second switch actuator disposed between each pair of adjacent floors within said hoistway; first calculation means responsive to the passage of said elevator car through said first switch actuator so as to calculate the synchronized floor by effecting the addition or subtraction of one floor by means of said electronic computer, and second calculation means responsive to one of either the start of said elevator car or to the passage of said elevator car through said second switch actuator so as to calculate said advanced floor by adding or subtracting a predetermined number of floors to or from said synchronized floors by means of said electronic computer.
Claim 3
Dependent Claim
36 words
A floor selector for an elevator system as claimed in claim 1, wherein there is further provided means for causing said advanced floor to coincide with said synchronized floor upon the stoppage of said elevator 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) | 1986-02-28 | 1986-08-30 | 1987-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-02-28 | 1990-08-30 | 1991-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-02-28 | 1994-08-30 | 1995-03-01 | $7700.00 | Window Closed / Lapsed |