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. 04, 1989
Filed:
Nov. 05, 1987
Preston B Kemp, Jr, Athens, PA (US);
Robert J Holland, Sr, Sayre, PA (US);
GTE Products Corporation, Stamford, CT (US);
Abstract
Apparatus for milling metal powder in a mill is disclosed which comprises a central shaft, the top of which is rotatably mounted to rotating apparatus, bottom stirrer(s), attached to the bottom edge of central shaft, upper stirrer(s), attached above the point of attachment of the bottom stirrer(s), and two or more primary stirrers, upper ends of which are attached to outer edge(s) of the upper stirrer(s) and the bottom ends attached to bottom edge(s) of the bottom stirrer(s). The bottom stirrer has a downward sloping leading edge with a first angle formed by a first plane extending along this edge to a second plane extending along the bottom of the mill, this angle being 10.degree. to 90.degree., the first angle being that between those faces of the first and second planes within which the bottom stirrer sits. The distance between the bottom of the mill and the lowest point of the downward sloping leading edge is equal to or less than the distance between the bottom of the mill and the other points on the bottom edge of the bottom stirrer. The upper stirrer has an upward sloping leading edge, with a second angle formed by a third plane extending along this edge to a fourth plane parallel to the top of the mill and above the upper stirrer(s), this angle being 10.degree. to 90.degree., the second angle being that between those faces of the third and fourth planes within which the upper stirrer sits. The distance between the fourth plane and the uppermost point of the upward sloping leading edge is equal to or less than the distance between the fourth plane and the other point(s) on the top edge of the upper stirrer(s).