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| SECTION H– ELECTRICITY |
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| H 05 | ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR |
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| H 05 F | STATIC ELECTRICITY; NATURALLY-OCCURRING ELECTRICITY (electrostatic machines H 02 N; uses of electricity in performing operations, e.g. precipitation, see the relevant subclasses for the operations) |
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| Notes |
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| (1) | This subclass covers methods or arrangements for preventing the formation of electrostatic charges on bodies or for carrying-off these charges after their formation. |
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| (2) | This subclass does not cover specific applications of the above-mentioned methods or arrangements. Such arrangements are covered by the relevant subclasses, e.g. arrangements in large containers B 65 D 90/46. |
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1/ | 00 | Preventing the formation of electrostatic charges |
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1/ | 02 | . | by surface treatment |
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3/ | 00 | Carrying-off electrostatic charges (from living beings A 61 N 1/14) |
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3/ | 02 | . | by means of earthing connections |
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3/ | 04 | . | by means of spark gaps or other discharge devices (devices providing for corona discharge H 01 T 19/00) [2] |
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3/ | 06 | . | by means of ionising radiation |
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7/ | 00 | Use of naturally-occurring electricity |
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