IPC Definitions - January 01, 2012
H05F - Definition
This subclass covers:
Methods or arrangements for preventing the formation of electrostatic charges on bodies or for carrying-off these charges after formation.
Use of naturally-occuring electricity, e.g. lightning and static electricity.
Relationship between large subject matter areas
Spark gaps, sparking plugs and corona discharge devices are classified in subclass H01T.
Electrostatic machines are classified in subclass H02N.
References relevant to classification in this subclass
This subclass does not cover:
Installations of lightning conductors; Fastening thereof to supporting structure | H02G 13/00 |
Garments protecting against electric shocks or static electricity | A41D 13/008 |
Footwear with earthing or grounding means | A43B 7/36 |
Carrying off electrostatic charges from living beings | A61N 1/14 |
Electric elements specially adapted for carrying off electrostatic charges from vehicles | B60R 16/06 |
Static discharge and lightning protection for aircraft | B64D 45/02 |
Arrangements in large containers | B65D 90/46 |
Structural protection against electrostatic charges or discharges for semiconductor devices | H01L 23/60 |
Protective earth or shield arrangements on coupling devices | H01R 13/648 |
Devices providing for corona discharge | H01T 19/00 |
Screening of printed circuits or components thereof against electric or magnetic fields | H05K 9/00 |
Attention is drawn to the following places, which may be of interest for search:
Domestic cleaning implements functioning electrostatically | A47L 13/40 |
Cleaning by electrostatic means | B08B 6/00 |
Apparatus for electrographic processes using a charge pattern | G03G 15/00 |
Electrostatic machines | H02N |
In this subclass, the following terms or expressions are used with the meaning indicated:
Corona discharge or brush discharge | Discharge from a conductor when the potential difference between it and its surroundings exceeds a certain value but is not enough to cause a spark or an arc. |
Spark gaps | Enclosed or non-enclosed discharge devices having cold electrodes and used exclusively to discharge a quantity of electrical energy in small time duration. |
Coupling devices | Devices having two or more parts specially adapted so as to be capable of ready and repeated physical engagement or disengagement, without the use of a tool for the purpose or establishing or breaking an electrical path. |
Electrostatic charge, Static electricity | They are used as synonyms for the electric charge at rest on the surface of an insulator or insulated body. |