Abrading – Precision device or process - or with condition responsive... – Computer controlled
Reexamination Certificate
2007-04-13
2008-05-20
Eley, Timothy V (Department: 3724)
Abrading
Precision device or process - or with condition responsive...
Computer controlled
C451S045000, C451S297000, C451S310000, C451S311000, C451S451000
Reexamination Certificate
active
07374470
ABSTRACT:
A sharpening apparatus having at least one guide slot, a drive pulley drivingly coupled to a frame and at least one idler pulley rotatably coupled to a support member. The support member is pivotably coupled to the frame. The apparatus includes an endless abrading belt rotatable in a path over the drive pulley and the at least one idler pulley and a biasing member coupled to the frame for biasing the support member toward an engaged position. Pivotal movement of the support member adjusts tension in the belt. A tool is traversed into the guide slot for sharpening a cutting edge thereof. The belt and support member respond to application and release of a force applied to the belt by the cutting edge to decrease and increase, respectively, belt speed to preclude overheating of the cutting edge and damage to the belt and cutting edge.
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International Search Report and Written Opinion dated Sep. 25, 2007.
Eley Timothy V
Michaud-Duffy Group LLP
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