Patent ID: 8261455

Claim:
A reciprocating saw adapted to reciprocally drive at least one saw blade along an arcuate path, said saw comprising: a drive input member, said drive input member adapted to receive a drive input; an arcuate converting mechanism comprising a longitudinally curved rod attached to said drive input member and movable along an arcuate path in an extension stroke and a retraction stroke responsive to reciprocating movement of said drive input member, and further comprising a saw blade holder attached to said curved rod and movable therewith, said arcuate converting mechanism converting said drive input into arcuate reciprocating movement of said saw blade holder; and at least one saw blade having an arcuate working surface, said saw blade mounted to said saw blade holder and reciprocally movable in an arcuate saw blade path via said arcuate converting mechanism, wherein both the extension stroke and the retraction stroke of said curved rod are along substantially the same arcuate path as one another, and wherein a curvature of said arcuate working surface of said at least one saw blade is substantially the same as or substantially parallel to a curvature of the arcuate path of said curved rod, whereby said arcuate working surface of said at least one saw blade traverses substantially the same arcuate path in both the extension stroke and the retraction stroke, said saw blade and curved rod both curving in the same direction, the curvature of said saw blade and said curved rod together extending over an angle of at least 90 degrees.