Invention Grant
- Patent Title: Elevator system including regenerative drive and rescue operation circuit for normal and power failure conditions
- Patent Title (中): 电梯系统包括用于正常和停电条件的再生驱动和救援操作电路
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Application No.: US12519282Application Date: 2006-12-14
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Publication No.: US08146714B2Publication Date: 2012-04-03
- Inventor: Vladimir Blasko
- Applicant: Vladimir Blasko
- Applicant Address: US CT Farmington
- Assignee: Otis Elevator Company
- Current Assignee: Otis Elevator Company
- Current Assignee Address: US CT Farmington
- Agency: Kinney & Lange, P.A.
- International Application: PCT/US2006/047698 WO 20061214
- International Announcement: WO2008/076095 WO 20080626
- Main IPC: B66B1/06
- IPC: B66B1/06
Abstract:
A system continuously drives an elevator hoist motor during normal and power failure conditions. A regenerative drive delivers power from a main power supply to the hoist motor during normal operation. A rescue operation circuit includes a backup power supply and is operable in the event of a failure of the main power supply to disconnect the regenerative drive from the main power supply and connect the back up power supply to the regenerative drive to provide substantially uninterrupted power to the hoist motor.
Public/Granted literature
- US20100006378A1 ELEVATOR DRIVE SYSTEM INCLUDING RESCUE OPERATION CIRCUIT Public/Granted day:2010-01-14
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