A rotary control device for actuating a switch and directing a fluid pressure force

Claim 1

A control device having one angularly movable portion controlling the application of both EMF and FPF in a system, comprising, a case having at least a first wall and a second wall, a body mounted in said case for relative angular movement therebetween; said body having at least a first surface and a second surface; said body surfaces lying adjacent said case walls; means for moving one said body and said case angularly relative to one another to locate said body relative to said case in at least two angular positions; said case having at least one FPF supply port and one FPF use port in said first wall surmounted by nipples for making connections to FPF supply and use; said body first surface slidably sealing against said first ported wall of said case; said body first surface having a grooved maze constituting at least two separate channels between said FPF supply and use ports with each said channel selectively communicating between FPF supply and use ports at one said position of said body relative to said case to effect desired application of FPF in a system, said case having at least two sets of EMF switch arms and contacts on said second wall, EMF terminals on said case leading to and from said switch arms and contacts for connections to EMF supply and use; said body second surface having at least two cams with each said cam selectively actuating one said EMF switch arm and contact at one said angular position of said body relative to said case to effect desired application of EMF in system; the cam arm EMF control and the channel port FPF control both being coordinated in operating a system by the angular position of said body relative to said case.