High speed precision sharpening apparatus

  • US 5,611,726 A
  • Filed: 04/28/1995
  • Issued: 03/18/1997
  • Est. Priority Date: 04/28/1995
  • Status: Expired due to Term
First Claim
Patent Images

1. A sharpener for blades with an elongated cutting edge and with facets adjacent to each side of the cutting edge, comprising at least one disk having an exposed abrasive coated surface, said disk being mounted on a shaft for rotation about a horizontal axis to move said abrasive coated surface across and away from the cutting edge when the blade is moved into contact with said surface, a blade guide surface juxtaposed said disk, said blade guide surface being at a predetermined vertical angle relative to a vertical line normal to said axis of rotation of said disk, said blade guide surface being in a plane which intersects said abrasive coated surface to function as an angular guide for the blade when the blade is placed against said blade guide surface to dispose the blade in contact with said abrasive coated surface, an edge guide disposed at said disk, said edge guide providing a location of contact with the blade as the blade is moved into contact with said abrasive coated surface, said location of contact being forward of said abrasive coated surface, and said edge guide having an exposed surface for said location of contact which is made of a non-abrasive material capable of having a groove formed therein to receive the cutting edge and both of the facets of the blade with the groove in and across said edge guide to provide a guide track for the blade edge to cooperate with said angular guide as the blade is moved across said rotating abrasive coated surface to properly dispose the blade against said abrasive coated surface.

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