Methods of beating; Beaters of the Hollander type

Introduced: September 1968

Full Title

Full titles differ between systems:

IPC:

Methods of beating or refining; Beaters of the Hollander type > Methods of beating; Beaters of the Hollander type

CPC:

Methods of beating or refining; Beaters of the Hollander type (knotter screens D21F) > Methods of beating; Beaters of the Hollander type

IPC and CPC are identically structured here. All 8 subcodes exist in both systems.

Navigate with arrow keys, Enter to open

D21D 1/04 Beater rolls or bars IPC+CPC Available in IPC and CPC
D21D 1/06 Bed plates IPC+CPC Available in IPC and CPC
D21D 1/08 Beaters with means for driving the pulp quickly IPC+CPC Available in IPC and CPC
D21D 1/10 Beaters with means for regulating the pressure between the beater roll and the bed plate IPC+CPC Available in IPC and CPC
D21D 1/12 Beaters with means for continuous pulp discharge IPC+CPC Available in IPC and CPC
D21D 1/14 Beaters with one beater roll and with vertical stuff circulation canal IPC+CPC Available in IPC and CPC
D21D 1/16 Beaters with means for returning the pulp over the head of the beater roll IPC+CPC Available in IPC and CPC
D21D 1/18 Beaters with two or more beater rolls IPC+CPC Available in IPC and CPC

Class D21,2013–2023, worldwide · Source: EPO PATSTAT

Class D21,2013–2023, worldwide · Source: EPO PATSTAT