Emergency power supply device for lift systems
March 21, 2021. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesElevator power source device Electrical system for a motor vehicle, including at least one supercapacitor Device for driving elevator at service interruption Multicell battery pack bilateral power distribution unit with individual cell monitoring and control Flywheel energy storage for operating elevators Power supply control device for electric vehicle Reserve power system Systems and methods for managing energy of electric power supply systems Super-capacitor energy storage unit for elevator installations Patent #: 6742630 InventorAssigneeApplicationNo. 10239946 filed on 03/21/2001US Classes:187/290, With auxiliary supply of electricity187/296, Limited to power source (i.e., motor) utilizing A.C. power320/103, ONE CELL OR BATTERY CHARGES ANOTHER320/118, With discharge of cells or batteries307/10.1, Automobile318/376, Regenerative307/66, Storage battery or accumulator191/22RCONDUCTORSExaminersPrimary: Salata, JonathanAttorney, Agent or FirmForeign Patent References
International ClassesB66B001/06B66B005/02 B66B001/32 B66B005/02 B66B005/02 B66B005/00 AbstractEmergency current supply equipment for lift installations with electric motor drives has the task of bridging over temporary drops or interruptions in main voltage and of supplying, in the event of failure of the mains supply during a lift travel, all components of the lift installation needed for an evacuation travel with energy until such time as the lift car has reached the level of a story. The energy storage unit used for that purpose comprises as the storage medium exclusively capacitors in the form of super capacitors or a combination of super capacitors and electrochemically acting batteries.Other References
Field of SearchWith auxiliary supply of electricityLimited to power source (i.e., motor) utilizing A.C. power Controls power source speed Limited to power source (i.e., motor) utilizing D.C. power WITH MONITORING, SIGNALLING, AND INDICATING MEANS Monitors operational parameter Storage battery or accumulator Sources distributed along load circuit Dynamic braking Regenerative With additional source of e.m.f. Diverse sources Different voltages Different voltages By auxiliary electric generator or by magnetic attraction or repulsion devices WITH FLYWHEEL OR MASSIVE ROTARY MEMBER BATTERY-FED MOTOR SYSTEMS With discharge of cells or batteries | |
