Abrasive tool making process – material – or composition – Impregnating or coating an abrasive tool
Patent
1990-04-03
1991-06-11
Parker, Roscoe V.
Abrasive tool making process, material, or composition
Impregnating or coating an abrasive tool
51245, B24B 1500
Patent
active
050221922
ABSTRACT:
A grinding apparatus for grinding the interior portion of a valve stem receiving area of a valve. The apparatus comprises a faceplate, a plurality of cams mounted to an interior face of the faceplate, a locking bolt to lock the faceplate at a predetermined position on the valve, a movable grinder and a guide tube for positioning an optical viewer proximate the area to be grinded. The apparatus can either be rotated about the valve for grinding an area of the inner diameter of a valve stem receiving area or locked at a predetermined position to grind a specific point in the receiving area.
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Korytkowski Alfred S.
Nachbar Henry D.
Caress Virginia B.
Constant Richard E.
Moser William R.
Parker Roscoe V.
The United States of America as represented by the United States
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