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:
Apr. 24, 1990
Filed:
Jun. 05, 1989
Robert T McKie, Boise, ID (US);
Other;
Abstract
Grinding mill apparatus for grinding biomass, said apparatus including a substantially box-like steel housing having a top inlet and a bottom outlet; a plurality of anvils pivotally engaging the housing and held in a fixed position by shear pins; a rotor mounted for rotation about a horizontal axis within the housing, the rotor provided with cutting bars orbiting in close proximity to the anvils for fragmenting the biomass; and a grate system for discharging material of a desired size through the outlet of the housing. The housing includes a back wall which is integral with the side walls for reducing metal fatigue and also includes a side wall access opening with access cover for insertion and removal of the cutter bars of the rotor and insertion and removal of grate member sections. The rotor includes two or more sections, each section defining a portion of a cylinder axially offset from adjacent sections for aerodynamic reaons and for reasons of strength. The rotor includes a cavity filled with a lead-antimony alloy to increase the strength of the rotor.