Patent ID: 6401585
Filing Date: 2002-06-11
Classification: B23D,Y10T

Abstract:
A replaceable saw blade for use in a portable in-line reciprocating power saw having a chuck adapted to mount the blade for reciprocal movement parallel to its longitudinal axis, the saw blade comprising:a main body portion; and a symmetrical mounting portion attached to the proximal end of the main body portion, the mounting portion comprising a slot disposed on the longitudinal axis of the saw blade and extending inwardly from the proximal end, the mounting portion further comprising an aperture disposed on the longitudinal axis of the saw blade, distally away from the slot, whereby the mounting portion is adapted to being reversibly received in and secured to the chuck of the power saw; the main body portion comprising oppositely disposed generally longitudinally oriented first and second cutting edges, the first and second cutting edges each comprising cutting teeth, the cutting teeth on the first cutting edge comprising teeth of a different configuration from the cutting teeth on the second cutting edge, the cutting teeth on the first and second cutting edges being adapted to cut first and second materials of disparate hardness; the main body portion further comprising a plurality of depth gauges disposed on opposite sides of the main body portion at selected distances from the distal end of the main body portion; the depth gauges comprising a plurality of dimples disposed in the opposite sides of the main body portion, the dimples comprising at least one subset of dimples extending transversely of the main body portion in a direction parallel to the distal end of the saw blade; the dimples each comprising a depression no part of which extends beyond the plane of the main body portion, whereby paint applied to the main body portion is adapted to being worn off during use except in the dimples.