US Patent No. 10,428,652

STRIKE TIP FOR A PICK TOOL HAVING A FLAT APEX AREA


Patent No. 10,428,652
Issue Date October 01, 2019
Title Strike Tip For A Pick Tool Having A Flat Apex Area
Inventorship Bernd Heinrich Ries, Burghaun (DE)
Frank Friedrich Lachmann, Burghaun (DE)
Assignee Element Six GmbH, Burghaun (DE)

Claim of US Patent No. 10,428,652

1. A strike tip for a pick tool, comprisinga strike structure joined to a substrate at an interface boundary, the strike structure comprising polycrystalline diamond (PCD) material and the substrate comprising carbide material, the strike tip having a proximate strike end coterminous with the PCD material, a distal end defined by the substrate, and a side connecting the strike and distal ends;
the distal end having a diameter of between 10 to 20 millimeters and the strike end including a flat apex area and an outer area extending from the apex area to the side, the outer area defining a partial conical surface arranged concentrically with the side, the partial conical surface having a cone angle of 80° to 110°, wherein the thickness of the strike structure between the apex area and the interface boundary opposite the apex area is 2.5 to 10 mm, the apex area being less than the outer area and having a minimum diametrical dimension of 1 millimeter and a maximum diametrical dimension of 3 millimeters, wherein the apex area is at least partly bounded by an edge formed between the apex area and the outer area.