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PCE
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DIFF Subgroup
H01G 5/04

using variation of effective area of electrode

Introduced: September 1968

Full Title

Capacitors in which the capacitance is varied by mechanical means, e.g. by turning a shaft; Processes of their manufacture > using variation of effective area of electrode

IPC and CPC are identically structured here. All 4 subcodes exist in both systems.

Child Classifications

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  • H01G 5/10 due to rotation of helical electrodes IPC+CPC Available in IPC and CPC
  • H01G 5/12 due to rotation of part-cylindrical, conical, or spherical electrodes IPC+CPC Available in IPC and CPC