Mounting arbor for saw cutting blades

  • US 5,303,688 A
  • Filed: 04/03/1992
  • Issued: 04/19/1994
  • Est. Priority Date: 04/03/1992
  • Status: Expired due to Term
First Claim
Patent Images

1. A cutting blade for use with a concrete cutting saw having a drive shaft with a blade mounting member for a rotating concrete cutting blade, said cutting blade having a first and second side, comprising:

  • a mounting hole at the center of the blade, said mounting hole having a shape which when viewed from the first side has a center point with a horizontal axis and vertical axis therethrough, a first corner with a radius of about 3.4 mm, said radius extending from a point located in front of the vertical axis and about 12.4 mm from the center point and at an angle of about 0 degrees from the horizontal axis, a second corner with a radius of about 4.1 mm, said radius extending from a point located behind the vertical axis and about 11.4 mm from the center point and at an angle of about 54 degrees above the horizontal axis, a third corner with a radius of about 3.6 mm, said radius extending from a point located behind the vertical axis and about 11.0 mm from the center point and at an angle of about 66 degrees below the horizontal axis, a first side which tangentially connects the outside of said first and second sides, a second side which tangentially connects the outside of said second and third sides, and a third side which is arcuate, having a radius of about 27.8 mm and which tangentially connects the outside of said first and third sides.

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