Apparatus for pelleting flocculent particles
Patent 4162287 Issued on July 24, 1979. Estimated Expiration Date: 
January 23, 1998. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
January 23, 1998. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References RE21379 2924847 3597170 Carbon black pelletizing apparatus Patent #: 4010001 InventorsAssigneeApplicationNo. 05/870682 filed on 01/23/1978US Classes:264/117, Agitating to form larger particles (i.e., accretion or agglomeration)422/242, Positive pressure type422/256, Liquid-liquid contact means425/222TUMBLING TYPE AGGLOMERATING MEANS FOR PARTICULATE MATERIALExaminersPrimary: Spicer, Robert L. Jr.International ClassesC09C 1/58 (20060101)C09C 1/44 (20060101) B01J 2/10 (20060101) B01F 15/00 (20060101) AbstractParticles being pelleted, e.g., flocculent carbon black being pelleted with water, are passed through alternating zones of increasing and decreasing pressure. An apparatus is disclosed in which a cylindrical shell comprises a rotatable shaft located substantially on the longitudinal axial center line of the shell. The shaft has pins positioned thereon forming at least one helix with alternate decreasing and increasing pitches along the helix thus to effect compression and expansion actions on the mass in the pelleter, thereby producing a narrow size range of pellets. | |
