Abrading – Precision device or process - or with condition responsive... – Computer controlled
Reexamination Certificate
2006-10-10
2006-10-10
Eley, Timothy V. (Department: 3724)
Abrading
Precision device or process - or with condition responsive...
Computer controlled
C451S009000, C451S010000, C451S021000, C451S072000, C451S443000
Reexamination Certificate
active
07118448
ABSTRACT:
A method and apparatus are used for truing grindstones. Grinding wheels are arranged in a manner such that the respective grindstone surfaces are disposed apart from each other to define a space therebeween and respective ones of the grindstone surfaces are positioned in respective planes with the planes extending parallel to each other. Each grinding wheel is composed of a conductive grindstone having abrasive grains bound by a conductive binding material. An electrode discharge is applied from an electro-discharge truing electrode disposed in the space between the grindstone surfaces in a non-contacting relationship with the grindstone surfaces. The electrode discharge occurs in respective gaps formed between the electro-discharge truing electrode and the grindstone surfaces. The electro-discharge electrode is moved relative to the grindstone surfaces while applying the electrode discharge so that the grindstone surfaces are trued thereby.
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International Search Report for PCT/JP01/11502 mailed on Apr. 23, 2002.
Eley Timothy V.
Koyo Machine Industries Co., Ltd.
Rader & Fishman & Grauer, PLLC
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