Global Patent Index - EP 0817944 A4

EP 0817944 A4 2000-05-03 - HEATING UNIT

Title (en)

HEATING UNIT

Title (de)

HEIZEINHEIT

Title (fr)

CORPS DE CHAUFFE

Publication

EP 0817944 A4 (EN)

Application

EP 96906686 A

Priority

  • AU 9600176 W
  • AU PN237095 A
  • AU PN264095 A

Abstract (en)

[origin: WO9632611A1] A fresh air heating unit has a casing (2) containing a stale air flow path (25) and a fresh air flow path (14). Combusted gas products from a gas burner (29) are mixed with the fresh air to heat it to a desired temperature before it is discharged into an enclosure. The two paths extend through a heat exchanger (15) and the rate of flow of stale air driven by a fan (26) through the casing is substantially equal to the rate of flow of fresh air driven through the casing by a second fan (21). As the rate of flow of fresh air from the casing into an enclosure is substantially matched by the rate of flow of stale air from the enclosure, and heat is transferred between the two air flows by the heat exchanger (15), a total replacement of air in the enclosure at a relatively high rate can be sustained in an economically viable manner. The level of noxious combustion products in the enclosure and produced by the gas burner (29) can thus be kept beneath that regarded as harmful by health authorities.

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

F24D 5/04; F24F 12/00

IPC 8 full level (invention and additional information)

F24F 12/00 (2006.01); F28C 3/08 (2006.01); F24F 1/00 (2011.01)

CPC (invention and additional information)

F28C 3/08 (2013.01); F24F 12/001 (2013.01); F24F 2001/0085 (2013.01); Y02B 30/545 (2013.01); Y02B 30/563 (2013.01)

Citation (search report)

  • No further relevant documents disclosed
  • See also references of WO 9632611A1

Designated contracting state (EPC)

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

EPO simple patent family

WO 9632611 A1 19961017; CA 2217971 A1 19961017; CA 2217971 C 20010731; CN 1155778 C 20040630; CN 1181802 A 19980513; EP 0817944 A1 19980114; EP 0817944 A4 20000503; NZ 303638 A 20000327

INPADOC legal status


2003-11-05 [18D] DEEMED TO BE WITHDRAWN

- Ref Legal Event Code: 18D

- Effective date: 20030506

2002-12-11 [17Q] FIRST EXAMINATION REPORT

- Ref Legal Event Code: 17Q

- Effective date: 20021024

2000-05-03 [A4] SUPPLEMENTARY SEARCH REPORT

- Ref Legal Event Code: A4

- Effective date: 20000320

2000-05-03 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

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

2000-05-03 [RIC1] CLASSIFICATION (CORRECTION)

- Ref Legal Event Code: RIC1

- Free Format Text: 7F 24D 5/04 A, 7F 24F 12/00 B

1998-01-14 [17P] REQUEST FOR EXAMINATION FILED

- Ref Legal Event Code: 17P

- Effective date: 19971103

1998-01-14 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

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