Apparatus for loading fibers in a fiber suspension with calcium carbonate

• US 6,673,211 B2
• Filed: 07/11/2001
• Issued: 01/06/2004
• Est. Priority Date: 07/11/2001
• Status: Expired due to Fees

• Current Assignee: Voith Paper Patent GmbH
• Original Assignee: Voith Paper Patent GmbH
• Inventors: Doelle, Klaus
• Primary Examiner(s): Chin, Peter
• Application Number:
  US09/902,975
• Publication Number:
  US 20030010463A1
• Time in Patent Office: 909 Days
• Field of Search: 162/23, 162/26, 162/24, 162/261, 162/9, 241/261.2, 422/226, 422/232, 422/233
• US Class Current: 162/261
• CPC Class Codes: B01F 23/56 by introducing solids in liquids, e.g. dispersing or dissolving
• CPC Class Codes: B01F 27/271 with means for moving the materials to be mixed radially between the surfaces of the rotor and the stator
• CPC Class Codes: D21H 17/675 Oxides, hydroxides or carbonates
• CPC Class Codes: D21H 17/70 forming new compounds in situ, e.g. within the pulp or paper, by chemical reaction with other substances added separately
• CPC Class Codes: D21H 23/04 Addition to the pulp; After-treatment of added substances in the pulp

Claims