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:
Dec. 22, 1992
Filed:
Mar. 06, 1991
Daniel C Sheirer, Bedford, PA (US);
Gerald L Woods, Bedford, PA (US);
Robert H Montgomery, Jr, Everett, PA (US);
Kennametal Inc., Latrobe, PA (US);
Abstract
A rotary drill bit insert including an elongated body rotatable about a central axis and having two halves symmetrical about the axis, each symmetrical half having a top surface including a planar front surface contiguous a noncoplanar back relief surface, a bottom surface opposite the top surface, a leading face extending between forwardly facing edges of the front surface and the bottom surface, a trailing face opposite the leading face extending between rearwardly facing edges of the back relief surface and the bottom surface and a distal end surface extending between outwardly distal edges of the top surface, leading face, trailing face, and bottom surface.