Patent SE454461B successfully refreshed from Google Patents.
SE454461B
Expired / Lapsed
SE
⏱️ 0.0 years remaining
Regulating method for domestic air heating and ventilation system
Assignee: Electrolux Ab
•
Filing: 1986-09-09
•
Granted: —
•
Expires: 2006-09-09
Abstract
Abstract Under specific circumstances the system produces heated input air currents which are blown into the house, such currents comprising a mixture of incoming external air and so-called return air sucked from the house, and partly an output air current which passes through a heat exchanger (25) to transfer its heat to the external air current.
Inventors
- 👤 J L Pahlsson
Bibliographic Details
Application Number
—
Jurisdiction
SE
Data Source
google_patents
Last Synchronized
2026-10-29 04:28
CPC Classifications
F; F24; F24F; F24F12/00; F24F12/001; F24F12/006; F24F11/00; F24F11/70; F24F11/72; F24F11/74; F24F11/77; F24F11/0001; F24F11/30; F24F11/41; F24F11/42; F24F11/76; F24F11/80; F24F11/81; F24F2011/0002; F24F2011/0005; F24F2110/00; F24F2110/30; F24F2110/32; Y; Y02; Y02B; Y02B30/00; Y02B30/56
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.