Foaming apparatus
Fog generator
Fog producing apparatus
Fogger bar assembly
Folding packing and method of manufacture
Food processor with air whipping capability
Forced draft cross flow, free-plenum evaporative heat exchanger
Forced flow vapor distribution device
Forced-air scent dispenser
Fountain humidifier and air cleanser
Four-way airflow induced draft crossflow cooling tower
Fractionation apparatus with low surface area grid above...
Fractionation column containing stacked fractionation trays
Fractionation tray formed by triangular downcomer modules
Fractionation tray having packing immediately below tray deck
Fractionation tray with adjustable capacity weir means
Fractionation tray with side discharging triangular downcomers
Fractionation trays
Fractionator feed section
Fractionator tray valve