Coping saw with multi-directional cutting blade with two cutting surfaces
OwnerNorbert Kirkinventor
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OwnerNorbert Kirkinventor
Estimating the term…
A thin saw blade with four cutting surfaces of fixed lengths in line, each cutting surface rotated with respect to the preceding cutting surface to enable a user to change cutting directions of the blade without rotating the material to be cut. A second embodiment uses a blade with two cutting surfaces of fixed length with cutting surfaces on opposed edges of the blade requiring only a single twist and enabling cutting of thicker pieces of material with longer strokes. A preferred embodiment uses the blade in a coping saw with each rotation being 90 degrees enabling rapid smooth cuts of thin materials for handicraft projects. Rubber O-rings secure the blade in anchor bolt slots to secure the blade while cutting in different directions. The blade could also be used in electric sabre saws or bench jig saws which would require adjustment of the work support surface to change cutting directions.
A thin saw blade having means for support at least at a first end for connecting the saw blade to a reciprocating mover, the saw blade having a first fixed length having cutting surfaces on two opposed edges ending in a short axial transition from the first fixed length to another orientation in line that is angularly rotated from the first fixed length to a second fixed length having cutting surfaces on two opposed edges.
A saw blade mounted in a coping saw frame, the blade having two straight cutting lengths having cutting surfaces on two opposed edges each approximately one-half the length of the blade in series with one half angularly rotated 90 degrees from the other with a final 90 degree rotation with the blade ends having pins extending perpendicularly from each end and the pins anchoring the blade in slots in anchor bolts in the coping saw frame.
Dependencies are inferred from the claim text.