Cascade valves

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1. A CASCADE VALVE COMPRISING;

A HOUSING HAVING A CYLINDRICAL BORE AND FLUID ENTRANCE AND EXIT CHAMBERS COMMUNICATING THEREWITH, MEANS FORMING A PLURALITY OF AXIALLY SEPARATED GUIDING LANDS IN BETWEEN SAID CHAMBERS INSIDE OF SAID BORE;

A VALVE STEM IN SAID BORE HAVING PORTIONS SNUGLY RECEIVED BY BUT CLEARING SAID LANDS, MEANS ALSO DEFINING DECOMPRESSION CHAMBERS BETWEEN SAID BORE AND SAID STEM, SAID DECOMPRESSION CHAMBERS BEING AXIALLY SPACED AND RESPECTIVELY SEPARATED BY SAID GUIDING LANDS;

AND MEANS IN SAID STEM DEFINING A PLURALITY OF THROTTLING CHANNELS WINDING AROUND THE STEM AXIS AS HELIX SECTIONS WITH SUBSTANTIALLY THE ENTIRE LENGTH OF ANY CHANNEL BEING OPPOSITE A DECOMPRESSION CHAMBER WHEN SAID VALVE IS IN CLOSED POSITION, THE CHANNELS OPPOSITE THE SAME DECOMPRESSION CHAMBER HAVING SIMILAR SENSE OF WINDING.

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1. A CASCADE VALVE COMPRISING;
- A HOUSING HAVING A CYLINDRICAL BORE AND FLUID ENTRANCE AND EXIT CHAMBERS COMMUNICATING THEREWITH, MEANS FORMING A PLURALITY OF AXIALLY SEPARATED GUIDING LANDS IN BETWEEN SAID CHAMBERS INSIDE OF SAID BORE;
  
  A VALVE STEM IN SAID BORE HAVING PORTIONS SNUGLY RECEIVED BY BUT CLEARING SAID LANDS, MEANS ALSO DEFINING DECOMPRESSION CHAMBERS BETWEEN SAID BORE AND SAID STEM, SAID DECOMPRESSION CHAMBERS BEING AXIALLY SPACED AND RESPECTIVELY SEPARATED BY SAID GUIDING LANDS;
  
  AND MEANS IN SAID STEM DEFINING A PLURALITY OF THROTTLING CHANNELS WINDING AROUND THE STEM AXIS AS HELIX SECTIONS WITH SUBSTANTIALLY THE ENTIRE LENGTH OF ANY CHANNEL BEING OPPOSITE A DECOMPRESSION CHAMBER WHEN SAID VALVE IS IN CLOSED POSITION, THE CHANNELS OPPOSITE THE SAME DECOMPRESSION CHAMBER HAVING SIMILAR SENSE OF WINDING.

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