The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 23, 1989
Filed:
Aug. 05, 1988
Andrew J Haddow, Middlesbrough, GB;
Trevor Carter, Yarm, GB;
Tioxide Group PLC, London, GB;
Abstract
A mill for grinding powder material is disclosed having a cylindrical separation chamber into which the powder material is fed as a dispersion in a gas stream. Powdered material initially is supplied through two spaced powder inlets each located between a jet and a venturi throat assembly so that milling fluid introduces the powder material through the venturis and the venturis are mounted in opposition so that the gas streams carrying the powder impinge on one another to impart grinding. The impinged material passes to a third venturi to be entrained in a gas fed from a third jet nozzle and introduced through the venturi into the separation chamber. The mill is of particular use for milling pigmentary powders.