• Patent Title: Elevator brake monitoring and control
  • Application No.: US15744807
    Application Date: 2017-08-01
  • Publication No.: US10221040B2
    Publication 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
Elevator brake monitoring and control
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.
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