04276500 is referenced by 6 patents and cites 11 patents.

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.

Title
Braking system
Application Number
6/24767
Publication Number
4276500
Application Date
March 28, 1979
Publication Date
June 30, 1981
Inventor
Henry J Shea
Dover
NJ, US
Elmer H Sumka
Edison
NJ, US
Agent
D R Lackey
Assignee
Westinghouse Electric
PA, US
IPC
H02K 17/32
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