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US 2003/0193235 A1Published application
Reverse taper cutting tip with a collar
AssigneeThe Sollami Company
InventorPhillip A. Sollami
Life of this patent
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Abstract
A cutting tool has tool body with a seat at a forward end thereof. A hard cutting insert is bonded into the seat. The insert is made of a hard material and has an elongate central portion having a maximum upper diameter and a maximum lower diameter that is less than the maximum upper diameter. A collar, also made of a hard material, surrounds the base of the elongate central portion of the insert.
Claims6
A cutting tool comprising
- a tool body having a longitudinal axis, a tapered cutting portion symmetrical about said axis, a radial flange axially behind said tapered cutting portion and a cylindrical shank axially behind said radial flange,
- said tool body having a seat at a forward end of said cutting portion, said seat having a given maximum outer diameter,
- an insert bonded into said seat, said insert comprising
- a central portion made of a hardened material and having a tapered forward cutting end diverging to a maximum first diameter, a rearward end having a maximum second diameter, said first diameter larger than said second diameter, and an elongate midsection extending from said first diameter to said second diameter,
- an annular collar also made of said hardened material, said annular collar having a central aperture for receiving said midsection of said insert, and an outer diameter sized to fit within said given maximum outer diameter of said seat.
2 more elements
Dependencies are inferred from the claim text.