Method and apparatus for stopping an elevator

Details Method and apparatus for stopping an elevator Method and apparatus for stopping an elevator

1980-10-14

1983-04-12

Smith, Jerry

Boots, shoes, and leggings

187 29R, B66B 130, G06F 1550

Patent

active

043800491

ABSTRACT:
A procedure for exactly stopping an elevator at a desired point, which elevator is moving along a controlled path and is provided with stopping brake for controlling the time of start of the braking. Determination of the time for starting the braking is with the aid of direct and indirect measurement of the velocity of the elevator and with the aid of a logic unit (LU). This logic unit (LU) contains at least one central processing unit (CPU), a program memory (PM) and a data memory (DM), so that the central processing unit implements operations in accordance with commands stored in the program memory and reads information from the data memory and stores information in the data memory.

REFERENCES:
patent: 3519805 (1970-07-01), Thorne-Booth
patent: 3893695 (1975-07-01), Rickert
patent: 4034856 (1977-07-01), Wehrli et al.
patent: 4102436 (1978-07-01), Kernick et al.

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