|
2012
|
Invention
|
Variable pitch fans. An axial air movement fan having a plurality of variable pitch fan blades (2... |
|
2011
|
Invention
|
Method of detecting and controlling stall in an axial fan. A method of detecting stall in an axia... |
|
2009
|
P/S
|
Centrifugal fans; heavy duty fans; fans for general air movement, exhaustion of dust, for emergen... |
|
2007
|
P/S
|
Machines and machine tools; motors and engines (except for land vehicles); machine coupling and t... |
|
2004
|
Invention
|
High-pressure fan. The invention relates to a high-pressure fan which comprises an electric motor... |
|
1982
|
P/S
|
Variable pitch control blowers for regulating air flow and ventilators.
Industrial electric fans. |
