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. 16, 1985
Filed:
Jan. 20, 1983
David R Hall, Provo, UT (US);
Megadiamond Industries, Inc., Provo, UT (US);
Abstract
An insert for a rotary type drag bit having two anchored components, an engaging element and a shank, is disclosed. The components are positioned into each other in interfitting relationship with the mating surfaces of the two components being at a non-perpendicular angle to a plane parallel to the front of the engaging element. This insert can then be placed into a receiving feature on the crown of a drill bit. The resulting engaging element to shank interface enables the forces encountered during drilling to be distributed over a larger surface area than conventional flat-on-flat two component attachments so that the bond is less likely to break. The effect of the drilling forces on the engaging element to shank interface is also reduced as the shearing forces are diminished and resolved into compressive forces and the shank provides a support for the interface bond against any remaining shearing forces.