Braking system

Details Braking system Braking system

1979-03-28

1981-06-30

Weldon, Ulysses

Electricity: motive power systems

Braking

Automatic and/or with time-delay means

318366, 318367, 318365, 318362, H02K 1732

Patent

active

042765005

ABSTRACT:
A braking system for transportation apparatus, such as an escalator, having an electrical drive. The braking effort applied when the transportation apparatus is to be stopped is inversely proportional to the electrical energy being consumed by the electrical drive at the time the stopping decision is made.

REFERENCES:
patent: 1166679 (1916-01-01), Handy
patent: 2460017 (1949-01-01), Lautrup et al.
patent: 3209225 (1965-09-01), Choudhury
patent: 3457403 (1969-07-01), Smith, Jr.
patent: 3866725 (1975-02-01), Greutter
patent: 3896925 (1975-07-01), Mitsui et al.
patent: 3927738 (1975-12-01), Ernst
patent: 4139810 (1979-02-01), Ueki et al.

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