Radio frequency (rf) power limiter and associated methods

Railway-points heaters

Range limitation for a protection device in a power supply...

Range temperature protection

Rapid pressure rise circuit

Rapid recycle oscillator with cutoff and thermal protection

Rapid transit system transient voltage suppression apparatus

Rate sensing instantaneous trip mode network

Rate-of-rise tripping device

Rc composite component with spark gap

Receptacle providing sustained excessive voltage protection

Recloser apparatus

Recloser control with independent memory

Reclosing relay apparatus

Reclosing system for power transmission line

Rectifier and transient suppressor

Rectifier monitoring circuit

Rectifier system with failure alarm circuitry

Reduced signal loss surge protection circuit

Reduced-loss, high-frequency signal transmission system...