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Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Inventor:
Freeland; Gary L.
Address:
Plainville, CT
No. of patents:
2
Patents:












Patent Number Title Of Patent Date Issued
6484125 Service information derived from elevator operational parameters November 19, 2002
The mean number of elevator door reversals, .mu., in groups of related door reversals, and the standard deviation, .sigma., from the mean, are used to determine the likelihood that door reversals are caused by passenger interference; the likelihood is low if a recent number of reversals
6330936 Elevator behavior reported in occurrence-related groups December 18, 2001
Elevator events and conditions are monitored so as to determine features which are notable with respect to service including repair and maintenance, a name label is stored chronologically in a log upon each occurrence of a notable feature. Attributes of the feature stored chronologic










 
 
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