Invention Grant
- Patent Title: Tower elevator alarm system
- Patent Title (中): 塔式电梯报警系统
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Application No.: US13121404Application Date: 2009-09-29
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Publication No.: US08692679B2Publication Date: 2014-04-08
- Inventor: Christopher Gavin Brickell
- Applicant: Christopher Gavin Brickell
- Applicant Address: US WA Tukwila
- Assignee: SafeWorks, LLC
- Current Assignee: SafeWorks, LLC
- Current Assignee Address: US WA Tukwila
- Agency: Woodcock Washburn LLP
- International Application: PCT/US2009/058853 WO 20090929
- International Announcement: WO2010/039735 WO 20100408
- Main IPC: G08B21/00
- IPC: G08B21/00

Abstract:
An elevator within a tower, such as a wind tower, includes a traction or drum type hoist powered by an electric motor where the hoist provides the mechanism to cause the vertical ascent or descent of the elevator. An aspect of the invention is to allow the descent of the elevator to drive the electric motor arranged to act as a generator and provide regenerative braking as well as power to drive an alarm device or devices.
Public/Granted literature
- US20110175743A1 TOWER ELEVATOR ALARM SYSTEM Public/Granted day:2011-07-21
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