Corona generator

Claim 2

In a tubular-type corona generator, the improvement comprising: a. a long length of readily bendable tubing formed of electrically conductive metal; b. a long length of plastic-covered electrical conductor inside said tubing and extending substantially the full length of said tubing; c. the inside diameter of said tubing exceeding the outside diameter of said plastic-covered conductor by from 0.5 - 5 millimeters; d. means for forcing a gas through said tubing; e. means for applying a high voltage to said plastic-covered conductor relative to said tubing; and f. said tubing being curved into a convenient shape.

Claim 3

The generator of claim 1 wherein said plastic covering for said conductor has a high dielectric strength and high ozone resistance.

Claim 4

The generator of claim 1 wherein said plastic-covered conductor is loose in said tube and free to touch the inside of said tube.

Claim 5

The generator of claim 1 wherein said tubing is selected from the group consisting of aluminum, copper and stainless steel.

Claim 6

The generator of claim 1 including a container of liquid, means for discharging gas from said tubing into said liquid, and a check valve arranged between said liquid and said tubing.

Claim 7

The generator of claim 5 wherein said tubing is immersed in said liquid.

Claim 8

The generator of claim 1 wherein said plastic covering said conductor has extruded fins centering said conductor within said tubing.

Claim 9

The generator of claim 1 including a helical plastic strand around said plastic-covered conductor to center said conductor within said tubing.

Claim 10

The generator of claim 1 including means for immersing said tubing in a cooling liquid.

Claim 11

In a tubular-type corona generator, the improvement comprising: a. a long length of readily bendable tubing formed of electrically conductive metal; b. a long length of plastic tubing inside said metal tubing and extending substantially the full length of said metal tubing; c. the inside diameter of said metal tubing exceeding the outside diameter of said plastic tubing by from 0.5 - 5 millimeters; d. means for forcing gas through said metal tubing; e. electric conductive material inside said plastic tubing and extending substantially the full length of said plastic tubing; f. means for applying a high-voltage to said conductive material inside said plastic tubing relative to said metal tubing; and g. said metal tubing being curved into a convenient shape.

Claim 12

In a tubular-type corona generator, the improvement comprising: a. a long length of readily bendable tubing formed of electrically conductive metal; b. a long length of plastic tubing inside said metal tubing and extending substantially the full length of said metal tubing; c. the inside diameter of said metal tubing exceeding the outside diameter of said plastic tubing by from 0.5 - 5 millimeters; d. means for forcing gas through said metal tubing; e. electric conductive material inside said plastic tubing and extending substantially the full length of said plastic tubing; f. means for applying a high-voltage to said conductive material inside said plastic tubing relative to said metal tubing; and g. said metal tubing being curved into a convenient shape.

Claim 13

The generator of claim 10 wherein said conductive material inside said plastic tubing is an electrically conductive liquid.

Claim 14

The generator of claim 10 wherein said conductive material inside said plastic tubing is a metallic conductor.

Claim 15

The generator of claim 10 wherein said plastic tubing has extruded fins centering said plastic tubing within said metal tubing.

Claim 16

The generator of claim 10 including a helical plastic strand around said plastic tubing to center said plastic tubing in said metal tubing.

Claim 17

The generator of claim 10 including means for immersing said metal tubing in liquid.

Claim 18

In a tubular-type corona generator, the improvement comprising: a. an electrically conductive material; b. a long length of flexible plastic tubing surrounded by said electrically conductive material; c. a long length of electric conductor in said plastic tubing and extending substantially the full length oF said plastic tubing; d. the inside diameter of said plastic tubing exceeding the outside diameter of said conductor by from 0.5 - 5 millimeters. e. means for forcing a gas through said plastic tubing; f. means for applying a high voltage to said conductor relative to said conductive material; and g. said plastic tubing being curved into a convenient shape.

Claim 19

In a tubular-type corona generator, the improvement comprising: a. an electrically conductive material; b. a long length of flexible plastic tubing surrounded by said electrically conductive material; c. a long length of electric conductor in said plastic tubing and extending substantially the full length oF said plastic tubing; d. the inside diameter of said plastic tubing exceeding the outside diameter of said conductor by from 0.5 - 5 millimeters. e. means for forcing a gas through said plastic tubing; f. means for applying a high voltage to said conductor relative to said conductive material; and g. said plastic tubing being curved into a convenient shape.

Claim 20

The generator of claim 16 wherein said conductive material is water, and said plastic tubing is submerged in said water.

Claim 21

The generator of claim 17 including means for discharging said gas into said water.

Claim 22

The generator of claim 18 including a check valve at the discharge end of said tubing.

Claim 23

The generator of claim 16 wherein said conductor is loose in said plastic tubing and free to touch the inside of said plastic tubing.

Claim 24

The generator of claim 16 wherein said plastic tubing is formed of material having high dielectric strength and high ozone resistance.

Claim 25

The generator of claim 16 wherein said conductor is tubular.

Claim 26

The generator of claim 22 including a long length of plastic-covered electrical conductor inside said conductive tubing and extending substantially the full length of said conductive tubing, the inside diameter of said conductive tubing exceeding the outside diameter of said plastic-covered conductor by from 0.5 - 5 millimeters, means for forcing a gas through said conductive tubing, and means for maintaining said plastic-covered conductor at substantially the same voltage potential as said conductive material surrounding said plastic tubing.

Claim 27

The generator of claim 16 wherein said electric conductor is plastic-covered.

Claim 28

The generator of claim 16 wherein said electrically conductive material is a bendable metal sleeve surrounding said plastic tubing.

Claim 29

The generator of claim 16 wherein said electrically conductive material is liquid.

Claim 30

The generator of claim 26 wherein said electrically conductive material includes a container for said liquid.

Claim 31

The generator of claim 26 wherein said conductor in said plastic tubing is plastic-coated.

Claim 32

The generator of claim 16 including extruded, internal, plastic fins on said plastic tubing for centering said electric conductor in said plastic tubing.

Claim 33

The generator of claim 16 wherein said electric conductor in said plastic tubing has a plastic covering including extruded plastic fins centering said conductor in said plastic tubing.

Claim 34

The generator of claim 16 including a helical plastic strand centering said electrical conductor in said plastic tubing.

Claim 35

In a tubular-type corona generator, the improvement comprising: a. a long length of readily bendable tubing; b. a plurality of plastic-covered electrical conductors inside said tubing and extending substantially the full length of said tubing; c. means for forcing a gas through said tubing; d. means for applying a high voltage to one of said plastic-covered conductors relative to another of said plastic-covered conductors; and e. said tubing being curved into a convenient shape.

Claim 36

In a tubular-type corona generator, the improvement comprising: a. a long length of readily bendable tubing; b. a plurality of plastic-covered electrical conductors inside said tubing and extending substantially the full length of said tubing; c. means for forcing a gas through said tubing; d. means for applying a high voltage to one of said plastic-covered conductors relative to another of said plastic-covered conductors; and e. said tubing being curved into a convenient shape.

Claim 37

The generator of claim 32 wherein said tubing is formed of flexible plastic material.

Claim 38

The generator of claim 32 wherein said plastic covering for said conductors has high dielectric strength and high resistance to ozone.

Claim 39

The generator of claim 32 including means for submerging said tubing in a liquid.