Fast-acting spark-over detector

Ferrohydrostatic separation method

Ferrohydrostatic separation method and apparatus

Ferromagnetic tumbling balls magnetic slurry separation system

Ferrous material recovery system

Ferrous particle magnetic removal and collection apparatus

Fiber-rejecting corona discharge electrode

Field coil core-tunnelling-enclosures with permeable bottoms...

Field generator for generating an electrostatic field in a...

Filter

Filter apparatus and method for collecting fly ash and fine...

Filter apparatus with induced voltage electrode

Filter cleaning mechanism

Filter construction

Filter cover assembly for differential housing mechanism

Filter for particulate materials in gaseous fluids and method

Filter for separating particles from gases

Filter media comprising dissimilar electrically charged layers

Filter system for removal of particles from hydrocarbonfluids

Filter-fan product including a circuit for monitoring the...