Global patent index - EP 0813671 A4

EP 0813671 A4 2000-04-12 - PEAK-LOAD CONSERVING THERMOSTAT AND METHOD

Title (en)

PEAK-LOAD CONSERVING THERMOSTAT AND METHOD

Title (de)

THERMOSTAT UND VERFAHREN ZUR VERMEIDUNG EINER SPITZENBELASTUNG

Title (fr)

THERMOSTAT ET PROCEDE DE GESTION DES CHARGES MAXIMALES

Publication

EP 0813671 A4 (EN)

Application

EP 95913497 A

Priority

US 9502397 W

Abstract (en)

[origin: WO9627769A1] A method and control apparatus (14) are described for limiting peak-load contribution by HVAC systems (24) and other systems. The control apparatus (14) reduces the percentage of on-time and thus fuel and power consumption and demand for utility capacity to a predetermined extent during peak-load periods, by inhibiting fuel-on signals from the thermostat (12) of each HVAC system to the furnace, fuel-pump, or air conditioner of the HVAC system (24), or other system, so that the total on-time during a load-measuring interval is reduced to a predetermined amount. During non-peak periods, the control apparatus (14) is inactive and the thermostat (12) controls the HVAC system (24). The invention can be used to retrofit an already installed thermostat, incorporated into a new thermostat installation, or incorporated into a thermostat as it is manufactured.

IPC 1-7 (main, further and additional classification)

F24F 11/00

IPC 8 full level (invention and additional information)

F24F 11/00 (2006.01)

CPC (invention and additional information)

F24F 11/006 (2013.01); F24F 11/0012 (2013.01); F24F 2011/0064 (2013.01); F24F 2011/0073 (2013.01)

Citation (search report)

Designated contracting state (EPC)

AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE

EPO simple patent family

WO 9627769 A1 19960912; AU 2091295 A 19960923; EP 0813671 A1 19971229; EP 0813671 A4 20000412

INPADOC legal status

2000-05-03 [18D] DEEMED TO BE WITHDRAWN

- Ref Legal Event Code: 18D

- Effective date: 19991003

2000-04-12 [A4] SUPPLEMENTARY SEARCH REPORT

- Ref Legal Event Code: A4

- Effective date: 20000228

2000-04-12 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

- Designated State(s): AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE

1997-12-29 [17P] REQUEST FOR EXAMINATION FILED

- Ref Legal Event Code: 17P

- Effective date: 19970908

1997-12-29 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

- Designated State(s): AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE