Diverter valve for dishwashing apparatus

Claim 2

IN A DEVICE HAVING AN INLET FOR CONNECTION TO A PURE WATER SUPPLY, A FIRST DISCHARGE OUTLET IN CONTINUOUS COMMUNICATION WITH THE ATMOSPHERE FOR DISCHARGING A STREAM OF PURE WATER AND AN ALTERNATE SECOND DISCHARGE OUTLET SUBJECT TO CONTAMINATION, DIVERTER VALVE MEANS TO DIVERT FLOW FROM SAID FIRST DISCHARGE OUTLET TO SAID SECOND DISCHARGE OUTLET AND TO PREVENT CONTAMINATED BACKFLOW FROM SAID SECOND DISCHARGE OUTLET TO SAID INLET, SAID DIVERTER VALVE MEANS HAVING IN COMBINATION: A DIVERTER VALVE CHAMBER IN COMMUNICATION WITH SAID INLET; A FIRST OUTFLOW PASSAGE FROM SAID CHAMBER TO SAID FIRST DISCHARGE OUTLET; A SECOND OUTFLOW PASSAGE FROM SAID CHAMBER TO SAID SECOND DISCHARGE OUTLET; A DIVERTER VALVE MEMBER IN SAID CHAMBER MOVABLE BETWEEN A FIRST POSITION CLOSING SAID FIRST OUTFLOW PASSAGE TO DIVERT FLOW FROM SAID INLET TO SAID SECOND OUTFLOW PASSAGE AND A SECOND POSITION CLOSING SAID SECOND OUTFLOW PASSAGE TO DIVERT FLOW FROM SAID INLET TO SAID FIRST OUTFLOW PASSAGE; AND MEANS TO PREVENT BACKFLOW IN SAID SECOND OUTFLOW PASSAGE IN RESPONSE TO LOWERING OF PRESSURE IN SAID DIVERTER CHAMBER WHEN SAID DIVERTER VALVE MEMBER IS IN SAID FIRST POSITION CLOSING SAID FIRST OUTFLOW PASSAGE, SAID PREVENTING MEANS COMPRISING: A BY-PASS FROM SAID CHAMBER TO SAID FIRST OUTFLOW PASSAGE; AND CHECK VALVE MEANS NORMALLY CLOSING SAID BY-PASS AND OPENING IN RESPONSE TO A VACUUM IN THE CHAMBER THEREBY TO PLACE THE CHAMBER IN COMMUNICATION WITH THE ATMOSPHERE THROUGH SAID FIRST OUTFLOW PASSAGE.

Claim 3

IN A DISHWASHING DEVICE FOR MOUNTING ON THE PLUMBING AT THE REAR SIDE OF A KITCHEN SINK FOR USE WITH A SUPPLY OF DETERGENT, SAID DEVICE HAVING AT LEAST ONE INLET FOR CONNECTION TO A WATER SUPPLY, A FIRST DISCHARGE OUTLET FOR CLEAR WATER AND A SECOND DISCHARGE OUTLET FOR MIXED WATER AND DETERGENT, THE COMBINATION THEREWITH OF: A DIVERTER VALVE CHAMBER IN COMMUNICATION WITH SAID INLET AND SAID TWO OUTLETS FOR FLUID FLOW FROM THE INLET TO THE TWO OUTLETS; CONTROL MEANS EXTENDING FORWARD FROM THE DISHWASHING DEVICE, SAID CONTROL MEANS HAVING A NORMAL FORWARD POSITION AND BEING MOVABLE REARWARDLY TO A SECOND REAR POSITION; YIELDING MEANS URGING SAID CONTROL MEANS FORWARD TO ITS NORMAL FORWARD POSITION; VALVE MEANS TO CONTROL FLOW FROM THE DIVERTER CHAMBER TO SAID TWO OUTLETS, SAID VALVE MEANS HAVING A NORMAL FIRST POSITION CUTTING OFF SAID SECOND OUTLET WHILE PERMITTING FLOW FROM THE DIVERTER CHAMBER TO THE FIRST OUTLET CONTROL MEANS TO MOVE FROM ITS NORMAL FIRST POSITION TO ITS SECOND POSITION WHEN THE CONTROL MEANS IS MOVED FROM ITS NORMAL FORWARD POSITION TO ITS REARWARD POSITION, SAID VALVE MEANS IN ITS SECOND POSITION DIVERTING THE FLOW OF THE WATER FROM SAID INLET TO THE SECOND OUTLET THEREBY CAUSING THE DIVERTED WATER TO EXERT A GIVEN FORCE BY FLUID PRESSURE ON THE VALVE MEANS TO TEND TO KEEP THE VALVE MEANS AT ITS SECOND POSITION AS LONG AS THE DIVERTED FLOW CONTINUES, THE FORCE EXERTED BY SAID YIELDING MEANS BEING LESS THAN SAID GIVEN FORCE WHEREBY THE YIELDING MEANS PERMITS THE GIVEN FORCE TO HOLD THE VALVE MEANS AT ITS SECOND POSITION AS LONG AS THE DIVERTED FLOW CONTINUES AND THE YIELDING MEANS RETURNS THE VALVE MEANS TO ITS NORMAL FIRST POSITION IN RESPONSE TO THE DROP OF THE FLUID PRESSURE IN THE DIVERTER CHAMBER WHEN FLOW FROM THE INLET TO THE DIVERTER CHAMBER CEASES.

Claim 4

IN A DISHWASHING DEVICE FOR MOUNTING ON THE PLUMBING AT THE REAR SIDE OF A KITCHEN SINK FOR USE WITH A SUPPLY OF DETERGENT, SAID DEVICE HAVING AT LEAST ONE INLET FOR CONNECTION TO A WATER SUPPLY, A FIRST DISCHARGE OUTLET FOR CLEAR WATER AND A SECOND DISCHARGE OUTLET FOR MIXED WATER AND DETERGENT, THE COMBINATION THEREWITH OF: A DIVERTER VALVE CHAMBER IN COMMUNICATION WITH SAID INLET AND SAID TWO OUTLETS FOR FLUID FLOW FROM THE INLET TO THE TWO OUTLETS; CONTROL MEANS EXTENDING FORWARD FROM THE DISHWASHING DEVICE, SAID CONTROL MEANS HAVING A NORMAL FORWARD POSITION AND BEING MOVABLE REARWARDLY TO A SECOND REAR POSITION; YIELDING MEANS URGING SAID CONTROL MEANS FORWARD TO ITS NORMAL FORWARD POSITION; VALVE MEANS TO CONTROL FLOW FROM THE DIVERTER CHAMBER TO SAID TWO OUTLETS, SAID VALVE MEANS HAVING A NORMAL FIRST POSITION CUTTING OFF SAID SECOND OUTLET WHILE PERMITTING FLOW FROM THE DIVERTER CHAMBER TO THE FIRST OUTLET CONTROL MEANS TO MOVE FROM ITS NORMAL FIRST POSITION TO ITS SECOND POSITION WHEN THE CONTROL MEANS IS MOVED FROM ITS NORMAL FORWARD POSITION TO ITS REARWARD POSITION, SAID VALVE MEANS IN ITS SECOND POSITION DIVERTING THE FLOW OF THE WATER FROM SAID INLET TO THE SECOND OUTLET THEREBY CAUSING THE DIVERTED WATER TO EXERT A GIVEN FORCE BY FLUID PRESSURE ON THE VALVE MEANS TO TEND TO KEEP THE VALVE MEANS AT ITS SECOND POSITION AS LONG AS THE DIVERTED FLOW CONTINUES, THE FORCE EXERTED BY SAID YIELDING MEANS BEING LESS THAN SAID GIVEN FORCE WHEREBY THE YIELDING MEANS PERMITS THE GIVEN FORCE TO HOLD THE VALVE MEANS AT ITS SECOND POSITION AS LONG AS THE DIVERTED FLOW CONTINUES AND THE YIELDING MEANS RETURNS THE VALVE MEANS TO ITS NORMAL FIRST POSITION IN RESPONSE TO THE DROP OF THE FLUID PRESSURE IN THE DIVERTER CHAMBER WHEN FLOW FROM THE INLET TO THE DIVERTER CHAMBER CEASES.