Fluid amplifier devices

Claim 1

A FLUID-OPERATED CONTROL DEVICE COMPRISING A CHAMBER DEFINED BY A PAIR OF SIDE WALLS, A FIRST OF SAID SIDE WALLS HAVING A FIRST SURFACE THEREOF PARALLEL TO THE CENTERLINE AXIS OF SAID DEVICE AND A DOWNSTREAM SECOND SURFACE DISPOSED IN DIVERGING RELATION TO THE CENTERLINE AXIS AT A RELATIVELY SMALL ANGLE, A SECOND OF SAID SIDE WALLS DISPOSED ON THE OPPOSITE SIDE OF THE CENTERLINE AXIS FROM SAID FIRST SIDE WALL AND HAVING A CURVED FIRST SURFACE AND A DOWNSTREAM SECOND SURFACE DISPOSED IN DIVERGING RELATIONSHIP TO THE CENTERLINE AXIS AT A RELATIVELY LARGE ANGLE, A FIRST FLUID PASSING TERMINATING IN A FIRST FLUID FLOW RESTRICTOR IN COMMUNICATION WITH SAID FIRST SIDE WALL FOR GENERATING A FIRST JET OF FLUID IN A DIRECTION ALONG THE DOWNSTREAM SURFACE OF THE FIRST SIDE WALL, A SECOND FLUID PASSAGE TERMINATING IN A SECOND FLUID FLOW RESTRICTOR IN COMMUNICATION WITH SAID SECOND SIDE WALL FOR GENERATING A SECOND JET OF FLUID IN A DIRECTION GENERALLY PERPENDICULAR TO THE DIRECTION OF THE FIRST JET AND ALONG THE CURVED SURFACE OF SAID SECOND SIDE WALL, THE SIDE WALLS OF SAID CHAMBER ESTABLISHING REGIONS WHICH EFFECT ATTACHMENT OF A JET OF FLUID TO THE DOWNSTREAM SURFACE OF SAID FIRST SIDE WALL IN THE PRESENCE OF A SINGLE ONE OF THE FIRST AND SECOND JETS TO PROVIDE STABLE OPERATION OF THE DEVICE, AND IMPINGEMENT UPON THE DOWNSTREAM SURFACE OF SAID SECOND SIDE WALL IN THE CONCURRENT PRESENCE OF THE FIRST AND SECOND JETS WHEREIN THE GREATER ANGLE OF DIVERGENCE OF THE DOWNSTREAM SECOND SURFACE OF SAID SECOND SIDE WALL INSURES THAT THE JETS WILL NOT BE ATTACHED THERETO AND THEREBY PERMIT SWITCHING OF THE FLUID FLOW UPON A SUBSEQUENT ABSENCE OF ONE OF THE TWO JETS, A PAIR OF SPACED FLUID-RECEIVING PASSAGES DOWNSTREAM FROM SAID SIDE WALLS FOR SELECTIVELY RECEIVING MUTALLY EXCLUSIVE FLUID SIGNALS FROM THE GENERATED JETS OF FLUID,