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US 12,715,053 B2Granted
Hole-saw with brazed or welded endcap
AssigneeMilwaukee Electric Tool Corporation
InventorsHannah T. Maksimovic, Andrew Schulz, John P. Mohr, Jesse R. North, Timothy J. Signer, Bradley Charles Engel
Life of this patent
Estimating the term…
Abstract
A hole-saw, including a sidewall and an endcap, is provided. The endcap includes projections that fit within notches of the sidewall to form a brazed or welded joint that couples the endcap to the cylindrical sidewall. The projections extend through the notches and are brazed or welded to the base of the sidewall. The endcap couples to the sidewall to form a cylindrical hole saw body. The endcap rotates and supports the hole-saw during operation.
Claims20
A hole-saw, comprising:
- an endcap comprising:
- a top surface;
- a bottom surface opposite the top surface;
- a sidewall extending between the top surface and the bottom surface, the sidewall defining an endcap diameter;
- a plurality of openings formed along the top surface;
- and
- a plurality of radially extending projections extending radially outward from the sidewall;
- a sidewall forming a hole-saw body when coupled to the endcap, the sidewall comprising:
- a cutting edge at a first axial end of the sidewall;
- and
- a second axial end coupled to the endcap;
- a plurality of notches located at the second axial end of the sidewall;
- wherein each of the radially extending projections have a height that matches a height of the endcap measured along the sidewall of the endcap from the top surface to the bottom surface;
- and
- wherein the radial extending projections are received within the notches of the sidewall and couple the endcap to the sidewall.
12 more elements
A hole-saw, comprising:
- a circular endcap comprising a plurality of radially extending projections and an endcap diameter;
- a sidewall forming a hole-saw body when coupled to the endcap, the sidewall comprising:
- a cutting edge at a first axial end of the sidewall;
- and
- a second axial end coupled to the endcap;
- an inner diameter extending between opposing sides of an inner surface of the sidewall;
- a plurality of notches located at the second axial end of the sidewall, each notch of the plurality of notches including an edge spaced a distance from the second axial end of the sidewall, wherein an undercut is formed along the edge and extends in a direction towards the first axial end of the sidewall;
- and
- wherein the endcap diameter is less than the inner diameter of the sidewall and the radially extending projections extend beyond the endcap diameter;
- and
- wherein the radially extending projections are received within the notches of the sidewall and couple the endcap to the sidewall.
8 more elements
A hole-saw, comprising:
- an endcap comprising a radial surface, a plurality of projections, and a bore defined in the endcap, the bore being configured to receive an arbor;
- a sidewall forming a hole-saw body when coupled to the endcap, the sidewall comprising:
- a cutting edge at a first axial end of the sidewall;
- and
- a second axial end coupled to the endcap;
- an inner diameter extending between opposing sides of an inner surface of the sidewall;
- a plurality of notches located at the second axial end of the sidewall, each notch of the plurality of notches including an undercut formed along an edge of the notch, the undercut extending along the sidewall away from the second axial end and towards the first axial end;
- and
- wherein the projections are received within the notches of the sidewall and couple the endcap to the sidewall;
- and
- wherein each projection is located on an opposing side of the radial surface of the endcap relative to another projection such that a distance between opposing projections is greater than the inner diameter of the sidewall.
8 more elements
Dependencies are inferred from the claim text.