Programmable control for heating installation

Details Programmable control for heating installation Programmable control for heating installation

1997-01-17

1998-09-08

Gordon, Paul P.

Boots, shoes, and leggings

236 46R, 235375, G06F 1700, G05D 2300

Patent

active

058054430

ABSTRACT:
A programmable control apparatus for a heating installation of the type that comprises a clock (8) and a processing unit (2) is provided to control one or more heating appliances of the installation according to programming data. The programming data are either programming data stored in the memory of a card (11), of the type that is known as "smart cards." This data is read out when such a card (11) is introduced into a reader (10) of the apparatus. The programming data resident in the processing unit (2) operates the heating system when no card is introduced into the reader (10). The stored programming data can be manually modified only if a card (11), known as a "key card", is introduced into the reader (10).

REFERENCES:
patent: 4319712 (1982-03-01), Bar
patent: 4634846 (1987-01-01), Harvey et al.
patent: 4980542 (1990-12-01), Jackson et al.
patent: 5156203 (1992-10-01), Funakoshi et al.
patent: 5203497 (1993-04-01), Ratz et al.
patent: 5435147 (1995-07-01), Mochizuki et al.

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