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US 5,503,809 AGranted
Compact ozone generator
AssigneeJohn T. Towles
InventorsRobert B. Coate, John T. Towles
Life of this patent
Estimating the term…
Abstract
A dual discharge ozone generator has concentrically disposed feed and return tubes including commonly connected inner and outer electrodes and a central electrode radially spaced by first and second spiral spacers forming dual corona discharge chambers.
Claims21
An ozone generator comprising:
- a feed tube having a bore defining an inner flow passage therethrough and having an inner electrode mounted thereon;
- a return tube concentrically disposed about the feed tube and forming an annular flow passage therebetween, the return tube having an outer surface and having an outer electrode mounted thereon;
- end means coupling the inner flow passage in flow communication with the annular flow passage;
- and,
- a central electrode disposed within the annular flow passage and radially spaced from the feed tube and the return tube.
2 more elements
An ozone generator having a dual corona discharge chamber, comprising:
- an inner dielectric tube;
- an inner electrode disposed within the inner dielectric tube having a proximal end and a distal end;
- a screen electrode disposed coaxially around the inner dielectric tube and spaced therefrom by a first spacer;
- an outer dielectric tube;
- an outer electrode disposed on an outer surface of the outer dielectric tube having a proximal and a distal end, outer dielectric tube being disposed coaxially around the screen grid electrode and spaced therefrom by a second spacer;
- and,
- a first end block having a pocket for receiving the distal ends of the inner and the outer dielectric tubes, and having flow passages for coupling a volume of gas traveling from the proximal end of the inner tube and directing the gas through a first flow passage bounded by the first spacer and a second flow passage bounded by the second spacer to an exhaust outlet on the proximal end of the outer tube.
4 more elements
A method for generating ozone comprising the steps of:
- providing a gas flow passage between a first electrode and a second electrode;
- partitioning the gas flow passage with a third electrode, thereby defining a first current discharge space between the first electrode and the third electrode and defining a second current discharge space between the second electrode and the third electrode;
- feeding a volume of gas containing oxygen through the first current discharge space and through the second current discharge space;
- and,
- applying a voltage to at least one of the electrodes and to the second electrode at an amplitude sufficient to induce electrical current flow through the first discharge space between the first electrode and the third electrode and through the second discharge space between the second electrode and the third electrode as the gas flows through the first and second discharge spaces.
2 more elements
An ozone generator comprising:
- a feed tube having a longitudinal bore defining an inner flow passage;
- a first electrode mounted on the feed tube;
- a return tube disposed around the feed tube and defining an annular flow passage therebetween;
- a second electrode mounted on the return tube;
- end means coupling the inner flow passage in flow communication with the annular flow passage;
- and,
- a third electrode disposed within the annular flow passage and positioned between the first electrode and the second electrode.
4 more elements
Dependencies are inferred from the claim text.