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. 08, 1997
Filed:
Dec. 11, 1995
Wayne H Beach, Roaring Spring, PA (US);
Kennametal Inc., Latrobe, PA (US);
Abstract
An article comprised of a first material and at least one additional material incorporates a sacrificial constraint. For example, a cutter bit has a bit body that contains a concavity and a sacrificial constraint in a axially first end. A cutter insert or a plurality of cutter inserts are brazed to the bit body at the periphery and in an annular channel or pocket defined by a first surface at the periphery of the concavity, a second surface radially outward form the first surface and radially inward from a sacrificial constraint that extends radially outward at the open end of the concavity. The sacrificial constraint may be removed from the article either prior to use by, for example, machining, or during use by, for example, attrition.