04542469 is referenced by 58 patents and cites 2 patents.

A Programmable Demand Register (PDR.TM.) which has a multi-function externally programmable time based measuring system is disclosed. An optical communication port is provided for bidirectional communication of data, said meter being capable of recordation of energy consumption in several different modes, according to the decision of the meter programmer. Meter programming is accomplished by means of any one of three separate devices, namely a Programmer/Reader (P/R) which is a sophisticated computerized device fully adapted to reprogram the PDR.TM. to function in any one or combination of modes as desired, to both receive and store data, and to output said data to a central billing recordation computer, and a billing period resetter (BPR) which is a battery powered device also adapted for two way communication, but limited to resetting the BPR as to data in the BPR memory, but not as to mode of operation of the BPR, and an inexpensive lightweight BPR-1 which also has two way communication capabilities, but limited to resetting the various meter functions, after insertion of a manually programmed password by the actuation of a series of switches.

Title
Programmable demand register with two way communication through an optical port and external reading devices associated therewith
Application Number
6/407608
Publication Number
4542469
Application Date
August 12, 1982
Publication Date
September 17, 1985
Inventor
William L Vollmer
Lafayette
IN, US
Glenn A Mayfield
West Lafayette
IN, US
Richard R Webeck
West Lafayette
IN, US
William A Szabela
West Point
IN, US
Kevin L Stricker
West Lafayette
IN, US
Robert L Straw
Linden
IN, US
Glen R Phillips
West Lafayette
IN, US
Russell F Greafnitz
Lafayette
IN, US
David D Gloyeski
Battle Ground
IN, US
Mark M Forbes
Lafayette
IN, US
Robert E Brandyberry
Lafayette
IN, US
Agent
John R Nesbitt
Assignee
Duncan Electric Company
IN, US
IPC
G01R 19/165
G06F 15/20
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