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US 11,673,246 B2Granted
Flat chisel
AssigneeHilti Aktiengesellschaft
InventorPeter Gerold
Life of this patent
Estimating the term…
Abstract
A flat chisel (1) having a longitudinal axis (7), a shank (2) and a blade-shaped working section (5). The shank (2) has a striking surface (4) perpendicular to the longitudinal axis (7). The working section (5) has a cutting edge (3) that is crosswise to the longitudinal axis (7). The cutting edge (3) is configured so as to be saddle-shaped.
Claims14
A flat chisel to process mineral materials, the flat chisel having a central longitudinal axis and a transverse axis perpendicular to the longitudinal axis, the transverse axis defining a transverse direction, the flat chisel comprising:
- a shank arranged along the central longitudinal axis and having a striking surface perpendicular to the longitudinal axis;
- and
- a blade-shaped working section with a cutting edge running in the transverse direction, the cutting edge being configured to be saddle-shaped, the cutting edge having a first concave curvature in a first plane formed between the longitudinal axis and the transverse axis, and the cutting edge has a second concave curvature in a second plane perpendicular to the central longitudinal axis and parallel to a normal axis perpendicular to the first plane.
Dependencies are inferred from the claim text.