Saber saw blade
First Claim
Patent Images
1. For cutting a kerf in wood composed of fibers, a saber saw metal blade in the form of a longitudinally extending web having teeth extending generally in the plane of the web along one side thereof, with means on the web to secure the blade at one end to a reciprocating motor-driven saw so that the blade reciprocates longitudinally of the saw;
- the improvement comprisinga tooth combination of(1) shear teeth for shearing fibers at the side of the kerf, and(2) cleaving teeth for partially cleaving fibers cut on one side of the kerf, wherein(1) a single cleaving tooth alternates with a single shear tooth;
(2) the shear teeth have a set out of the plane of the web, with alternating shear teeth having opposite sets; and
(3) the cleaving teeth lie in the plane of the web;
whereby, when the saw blade reciprocates, a sawing action occurs wherein(1) a first shear tooth set to one side of the web first shears wood fibers at the side of the kerf of the set;
(2) a cleaving tooth adjacent the first shear tooth partially cleaves the said first sheared fivers from the wood, the said cut fibers remaining intact at the side of the kerf opposite the cut made by the first shear tooth, and(3) a second shear tooth set opposite the first shear tooth shears the said partially cleaved fibers at the side of the kerf opposite the first shear;
wherein the teeth are symmetrical, whereby the shearing and cleaving action set forth occurs in each direction of reciprocation.
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Abstract
A saber saw blade having shearing teeth and cleaving teeth in combination wherein the shearing teeth alternatively cut the fiber on opposite sides of the kerf, and the cleaving teeth separate out the sheared fiber. The saw cuts on both portions of the reciprocating stroke.
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Citations
1 Claim
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1. For cutting a kerf in wood composed of fibers, a saber saw metal blade in the form of a longitudinally extending web having teeth extending generally in the plane of the web along one side thereof, with means on the web to secure the blade at one end to a reciprocating motor-driven saw so that the blade reciprocates longitudinally of the saw;
- the improvement comprising
a tooth combination of (1) shear teeth for shearing fibers at the side of the kerf, and (2) cleaving teeth for partially cleaving fibers cut on one side of the kerf, wherein (1) a single cleaving tooth alternates with a single shear tooth; (2) the shear teeth have a set out of the plane of the web, with alternating shear teeth having opposite sets; and (3) the cleaving teeth lie in the plane of the web; whereby, when the saw blade reciprocates, a sawing action occurs wherein (1) a first shear tooth set to one side of the web first shears wood fibers at the side of the kerf of the set; (2) a cleaving tooth adjacent the first shear tooth partially cleaves the said first sheared fivers from the wood, the said cut fibers remaining intact at the side of the kerf opposite the cut made by the first shear tooth, and (3) a second shear tooth set opposite the first shear tooth shears the said partially cleaved fibers at the side of the kerf opposite the first shear; wherein the teeth are symmetrical, whereby the shearing and cleaving action set forth occurs in each direction of reciprocation.
- the improvement comprising
Specification
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Current AssigneeAnthony K. Kuklinski
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Original AssigneeAnthony K. Kuklinski
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InventorsKuklinski, Anthony K.
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Primary Examiner(s)Schran, Donald R.
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Application NumberUS07/196,811Time in Patent Office264 DaysField of Search83/848, 83/849, 83/850, 83/835, 83/854, 83/855US Class Current83/849CPC Class CodesB23D 61/121 Types of set; Variable teet...B23D 61/128 Sabre saw bladesY10T 83/9319 Toothed blade or tooth ther...Y10T 83/9353 Including raker tooth groupY10T 83/9355 Including intermediate rake...
