US4655324A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for privately controlling an elevator
Assignee: Otis Elevator Co
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Filing: 1985-09-23
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Granted: 1987-04-07
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Expires: 2005-09-23
Abstract
Abstract Elevator commands, such as car calls, are entered through a wireless, hand-held transmitter. A command is received and registered as if it were directly entered on the car-operating panel. Transmission of some calls is delayed after the call is entered on the transmitter.
Inventors
- 👤 Gary M. Meguerdichian
- 👤 Robert E. Greenstien
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 08:01
CPC Classifications
B; B66; B66B; B66B1/00; B66B1/34; B66B1/46; B66B1/468; B66B2201/00; B66B2201/40; B66B2201/46; B66B2201/4607; B66B2201/4615; B66B2201/4653; B66B2201/4661; B66B2201/4676
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
86 words
A method by which elevator passengers control operation of an elevator car controlled by a car control system and having a car-operating panel by which passengers enter car control requests on buttons and switches, characterized by the steps: entering a car command on a hand-held, wireless transmitting device to cause the transmission of a coded command signal; receiving the coded command signal through a sensor associated with the elevator cab; decoding the received coded command signal; and registering the car command with the car control system.
Claim 2
Independent Claim
86 words
A method by which elevator passengers control operation of an elevator car controlled by a car control system and having a car-operating panel by which passengers enter car control requests on buttons and switches, characterized by the steps: entering a car command on a hand-held, wireless transmitting device to cause the transmission of a coded command signal; receiving the coded command signal through a sensor associated with the elevator cab; decoding the received coded command signal; and registering the car command with the car control system.
Claim 3
Dependent Claim
26 words
A method according to claim 1, characterized in that the car command is transmitted as digitally encoded infrared signal transmitted from the transmitter to the receiver.
Claim 4
Dependent Claim
27 words
The invention according to claim 2, characterized in that a car command is entered by actuating one of a plurality of coded functional buttons on the transmitter.
Claim 5
Dependent Claim
31 words
A method according to claim 1 or 3, characterized in that some car commands are entered by operating a combination of the buttons and one car command is an emergency signal.
Claim 6
Dependent Claim
27 words
A method according to claim 1, characterized in that the transmission of the coded command signal is delayed after the car command is entered on the transmitter.
Claim 7
Dependent Claim
16 words
A method according to claim 1, characterized in that the sensor is located in the cab.
Claim 8
Dependent Claim
71 words
Apparatus for making elevator car service requests, characterized by: an elevator car controller; a car-operating panel for making a service request to the controller; a wireless transmitter that is transportable by passengers and that includes a key that is operable by a passenger for transmitting the service request; a receiver associated with the car for receiving the service requests transmitted by the transmitter and making the service request to the controller.
Claim 9
Dependent Claim
71 words
Apparatus for making elevator car service requests, characterized by: an elevator car controller; a car-operating panel for making a service request to the controller; a wireless transmitter that is transportable by passengers and that includes a key that is operable by a passenger for transmitting the service request; a receiver associated with the car for receiving the service requests transmitted by the transmitter and making the service request to the controller.
Claim 10
Dependent Claim
33 words
An apparatus according to claim 7, characterized in that the transmitter comprises means for delaying transmission of the service request for a preset time interval after the key is operated by the passenger.
Claim 11
Dependent Claim
39 words
An apparatus according to claim 7 or 8, characterized in that the transmitter includes a plurality of keys that are operated to enter the service request and at least one of the keys is operable to indicate an emergency.
Claim 12
Dependent Claim
24 words
An apparatus according to claim 7, characterized in that the receiver includes a sensor in the elevator cab to receive the transmitted service request.
Claim 13
Dependent Claim
18 words
An apparatus according to claim 10, characterized in that the sensor is located on a car operating panel.
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) | 1990-04-06 | 1990-10-06 | 1991-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-04-06 | 1994-10-06 | 1995-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-04-06 | 1998-10-06 | 1999-04-07 | $7700.00 | Window Closed / Lapsed |