Invention Grant
- Patent Title: Elevator brake monitoring and control
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Application No.: US15744807Application Date: 2017-08-01
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Publication No.: US10221040B2Publication Date: 2019-03-05
- Inventor: Yoram Madar
- Applicant: Yoram Madar
- Agency: Law Office of Steven W. Weinrieb
- Priority: IL247342 20160818
- International Application: PCT/IL2017/050852 WO 20170801
- International Announcement: WO2018/033902 WO 20180222
- Main IPC: B66B1/34
- IPC: B66B1/34 ; B66B5/00

Abstract:
An electric circuit for monitoring and controlling of at least one elevator emergency safety for braking elevator car from moving is provided. The electric circuit installed in an elevator having a control panel, a lifting machine having at least one motor brake and emergency safety braking and floor signal (FS) device. The electric circuit includes a switching device RFS energize or de-energized depending on electric signal of said FS device. The electric circuit further includes a switching device RGX having contacts RGX-1 and RGX-2, a switching device RG having contacts RG-1 and RG-2 and a switching device RBRK for indicating the state of the motor braking(s). The electric circuit further includes contact RBRK-1 of the switching device RBRK and contacts RFS-1 and RFS-2 of the RFS switching device.
Public/Granted literature
- US20190039859A1 ELEVATOR BRAKE MONITORING AND CONTROL Public/Granted day:2019-02-07
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