Abstract: A means for concealing an antenna within an extension of a common roof structure using an electrically shortened element laminated between two layers of non-RF conductive material which add to the strength of the invention as well as concealability. The antenna itself comprises a vertical radiator and a helical counterpoise of metal strip, wire, or deposited metal fed at the center point. The entire antenna is housed between laminated layers of plastic in the form of a vent pipe.

Abstract: 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.