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:
Jul. 02, 1996
Filed:
May. 07, 1993
Anthony Witsken, Cincinnati, OH (US);
Other;
Abstract
Wet grinding apparatus including a grinding unit having first and second outer plates forming a housing with an inner chamber. A rotatable disc is housed in the inner chamber. A drive shaft is attached to the rotatable disc and extends centrally through one side of the housing. The other side of the housing includes a central inlet port for allowing introduction of slurry solution. A peripheral edge surface of the housing includes one or more outlet ports. Inner surfaces of the first and second outer plates and both surfaces of the rotatable disc have a series of outwardly extending grooves which taper in depth from a central location of each disc to a peripheral portion of each disc. The rotatable disc further includes a plurality of central feed ports or openings in communication with grooves on each side of the rotatable disc. The grinding method and operation of the apparatus include feeding slurry solution containing particles into the grooves and rotating the rotatable disc to reduce the size of the particles in the slurry solution while transferring the slurry solution to the outlet or outlets of the grinding unit.