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Powered cutting saw system

  • US 6,021,826 A
  • Filed: 05/19/1998
  • Issued: 02/08/2000
  • Est. Priority Date: 05/19/1997
  • Status: Expired due to Fees
First Claim
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1. A cutting saw, comprising:

  • a motor that induces rotary motion in a shaft;

    a plate that is mounted to the shaft so that the shaft can be held stationary relative to the plate on all axes except a longitudinal axis of the shaft, whereby the shaft can be freely rotated about the longitudinal axis of the shaft;

    an elongated saw-bar mounted to the plate, the saw-bar having a perimeter;

    a cutting-chain entrained about the perimeter of the saw-bar and about the shaft so that rotation of the shaft induces rotary motion of the cutting-chain about the perimeter of the saw-bar, the cutting-chain including at least one tooth that is capable of removing solid material;

    a base that is slidably mounted to the plate to permit the plate to move relative to the base between a first position and a second position; and

    a depth stop that limits movement of the plate relative to the base to a plurality of third positions that are between the first and second positions;

    wherein the base encloses the saw-bar and the cutting-chain in the first position, and wherein the base encloses only a portion of the saw-bar and the cutting-chain in the second position.

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