Patent classifications
F
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
Load children
F24
HEATING; RANGES; VENTILATING
Load children
F24F
AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
Load children
F24F7/04
with ducting systems; , e.g. by double walls; with natural circulation
Load children Filter patents View analytics View as hierarchy
F24F7/06
with forced air circulation, e.g. by fan; positioning of a ventilator in or against a conduit
Load children Filter patents View analytics View as hierarchy
F24F7/08
with separate ducts for supplied and exhausted air; with provisions for reversal of the input and output systems
Filter patents View analytics View as hierarchy