Invention Grant
- Patent Title: Personal lift device
- Patent Title (中): 个人电梯设备
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Application No.: US12616569Application Date: 2009-11-11
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Publication No.: US08128068B2Publication Date: 2012-03-06
- Inventor: Mak Chepurny , Gordon J. Molnar , Michael F. Wilson
- Applicant: Mak Chepurny , Gordon J. Molnar , Michael F. Wilson
- Applicant Address: unknown Mississauga, Ontario
- Assignee: Prism Medical Ltd.
- Current Assignee: Prism Medical Ltd.
- Current Assignee Address: unknown Mississauga, Ontario
- Agency: Vidas, Arrett & Steinkraus P.A.
- Main IPC: B66D1/20
- IPC: B66D1/20

Abstract:
A personal lift device is disclosed having a motor having an output shaft. A gearing system is operatively connected to the output shaft for increasing torque. A strap for suspending a weight is wound onto a spool and rotating the spool extends and retracts the strap. A drive connection is made between the gearing system and the spool to permit said motor to drive said spool. A brake is associated with said spool to prevent unwanted extension of said strap from said spool, when a weight is suspended by said strap. In a preferred embodiment a clutch is provided between the brake and the drive train, and the greater the weight supported by the spool the greater the braking force. An emergency lift and lower device is also provided in the event of a failure of the motor.
Public/Granted literature
- US20100051889A1 PERSONAL LIFT DEVICE Public/Granted day:2010-03-04
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