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US 12,083,614 B2Granted
Method and apparatus for refurbishing an oscillating multi-tool blade
AssigneeSwealand Hus & Fasadteknik AB
InventorsNicklas Gustafsson, Richard Sundgren
Life of this patent
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Abstract
A method and apparatus for refurbishing an oscillating multi-tool blade (10) having a serrated forward end. The blade (10) is clamped to a support surface, a new serrated end is formed by cutting away an edge portion of the serrated end, the blade (10) is moved across a cutting direction so far as tips of teeth (12) of the new serrated end will be cut away during a following renewed cut, and the renewed cut is performed.
Claims14
A cutting apparatus (100) for refurbishing an oscillating multi-tool blade (10) having a serrated forward end, the cutting apparatus (100) comprising:
- a clamping mechanism (70) including a clamping member (76) and a support member (60) for clamping the blade (10) therebetween;
- cutting tooling (20, 40) for cutting a new serrated end of the blade (10) by cutting away an edge portion of the serrated forward end;
- and
- a mechanism (110) for moving the clamping member (76) and the support member (60) and the blade (10) clamped therebetween across a cutting direction so far as tips of blade teeth (12) of the new serrated end will be cut away during a following renewed cut,
- said mechanism (110) comprising an eccentric end portion (112) of a shaft (113) journaled to a support structure (102) and rotated by a handle (114) to either one of two predetermined end portions defined by two releasable locking pins (118), wherein
- by cutting away the edge portion in two steps and moving the blade (10) laterally between the steps, where the blade (10) is clamped during this movement, tips of teeth resulting from the renewed cut will be very sharp as these are then not shaped by inevitably rounded tips of the cutting tooling (20, 40) but shaped in two occasions by intersecting straight edges of the cutting tooling (20, 40).
3 more elements
Dependencies are inferred from the claim text.