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Patent US4832157A successfully refreshed from Google Patents.
US4832157A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Displaying device for elevator
Assignee: Mitsubishi Electric Corp
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Filing: 1988-08-09
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Granted: 1989-05-23
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Expires: 2008-08-09
Abstract
Abstract An elevator displaying device for displaying, in addition to the car position of the elevator, operating conditions, such and opening and closing states, of the car door to alert passengers who are about to get on the car of possible dangers resulting from the operation of the door. Detectors are provided for detecting the operating conditions of the car door.
Inventors
- 👤 Mamoru Kitano
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 10:08
CPC Classifications
B; B66; B66B; B66B3/00; B66B3/02; B66B3/023; B66B13/00; B66B13/24
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
125 words
An elevator displaying device comprising: displaying means including a pair of multiple-segment display units provided in an elevator hall for displaying position of an elevator car by selected lighted segments of said display units which form numbers, detecting means for detecting opening and closing states of an elevator door, and display control means operatively connected to said displaying means and said detecting means for controlling the display on said pair of display units by the lighting of selected segments of both to provide one unit of information relative to the door opening and closing states to alert a passenger that the elevator door is being opened or closed, thereby displaying either elevator car position-representing numbers or door opening and closing states on the same device.
Claim 2
Dependent Claim
125 words
An elevator displaying device comprising: displaying means including a pair of multiple-segment display units provided in an elevator hall for displaying position of an elevator car by selected lighted segments of said display units which form numbers, detecting means for detecting opening and closing states of an elevator door, and display control means operatively connected to said displaying means and said detecting means for controlling the display on said pair of display units by the lighting of selected segments of both to provide one unit of information relative to the door opening and closing states to alert a passenger that the elevator door is being opened or closed, thereby displaying either elevator car position-representing numbers or door opening and closing states on the same device.
Claim 3
Dependent Claim
21 words
A display device for an elevator according to claim 1, wherein said display units each includes a 16-segment digital displaying unit.
Claim 4
Dependent Claim
46 words
A display device for an elevator according to claim 1 wherein said display control means is operated to control alternate displays of positional information of the elevator car and the opening and closing states of the elevator door when the elevator car stops at a floor.
Claim 5
Dependent Claim
34 words
A display device for an elevator according to claim 1 wherein said display control means is operated to control the display on said display units of signs representing operating directions of the elevator car.
Claim 6
Dependent Claim
103 words
An elevator display apparatus comprising a pair of single-digit, multiple-segment display units provided in an elevator hall adjacent doors which open and close to control entry to an elevator car, means providing electrical signals representing up or down operating directions of the elevator car, and display control means for operating said pair of display units to display, by the lighting of selected segments of said pair of units, numbers representing position of the elevator car and, responsive to the electrical signals, for operating said pair of units to display one unit of information representing up or down operating directions of the elevator car.
Claim 7
Dependent Claim
103 words
An elevator display apparatus comprising a pair of single-digit, multiple-segment display units provided in an elevator hall adjacent doors which open and close to control entry to an elevator car, means providing electrical signals representing up or down operating directions of the elevator car, and display control means for operating said pair of display units to display, by the lighting of selected segments of said pair of units, numbers representing position of the elevator car and, responsive to the electrical signals, for operating said pair of units to display one unit of information representing up or down operating directions of the elevator car.
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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) | 1992-05-22 | 1992-11-21 | 1993-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-05-22 | 1996-11-21 | 1997-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-05-22 | 2000-11-21 | 2001-05-23 | $7700.00 | Window Closed / Lapsed |