Edge prepped and / or ceramic coated cutting edge for a wire cutter of a hand tool
Ceramic-coated, rounded cutting edges in wire cutters address the issues of electrical blowout and edge degradation, enhancing durability and performance by combining electrical resistivity with edge preparation techniques.
WO2026128815A1PCT designated stage Publication Date: 2026-06-18MILWAUKEE ELECTRIC TOOL CORP
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- MILWAUKEE ELECTRIC TOOL CORP
- Filing Date
- 2025-12-12
- Publication Date
- 2026-06-18
AI Technical Summary
Technical Problem
Existing wire cutters face issues with electrical blowout when cutting live wires and suffer from edge chipping or cracking due to brittle materials and sharp edges, leading to reduced durability and effectiveness.
Method used
The implementation of a ceramic coating with a resistivity of 1.0 x 10^8 to 1.0 x 10^14 Ω-cm on the cutting edges, combined with a rounded edge preparation through techniques like sand blasting or brush wheel polishing, enhances durability and prevents electrical blowout while maintaining edge integrity.
Benefits of technology
The ceramic-coated, rounded cutting edges significantly reduce the risk of electrical blowout and extend the tool's lifespan by minimizing edge wear, ensuring consistent performance over numerous cutting cycles.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure US2025059404_18062026_PF_FP_ABST
Abstract
Embodiments of the disclosure relate to a hand tool. The hand tool has a first jaw assembly with a first handle portion, a first jaw portion, and a first pivot portion. The first jaw portion has a first cutting edge. The hand tool further has a second jaw assembly with a second handle portion, a second jaw portion, and a second pivot portion. The second jaw portion has a second cutting edge. The first cutting edge and the second cutting edge are configured to operate as a wire cutter. Each of the first and second cutting edges include a first surface and a second surface in which the first and second surfaces are arranged at an angle in a range from 30° to 75°. Each of the cutting edges is rounded with a radius of curvature in a range of 0.02 mm to 0.09 mm.
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