Abrasive tool making process – material – or composition – With carbohydrate or reaction product thereof
Patent
1992-09-28
1994-04-19
Rose, Robert A.
Abrasive tool making process, material, or composition
With carbohydrate or reaction product thereof
51 59SS, 51241VS, B24B 1504
Patent
active
053035097
ABSTRACT:
An apparatus for treating valves having a sealing seat embodied on a movable valve element and a valve seat face embodied on a valve seat body in such a way as to improve the surface quality of the sealing faces. The movable valve element is set into a rotational motion, with pressure applied thereto toward the valve seat body held in a fixed position. During the rotational motion of the valve element a vibrational motion of ultrasonic range high frequency, acting parallel to the axis of rotation, is superimposed upon the rotary motion. Simultaneously a fine-grained lapping medium is applied to the valve seat face. The apparatus is suitable for all valves having movable valve elements, the sealing seats of which cooperate with valve seat faces.
REFERENCES:
patent: 950565 (1910-03-01), Cooke
patent: 2268723 (1942-01-01), Scherer
patent: 2621447 (1952-12-01), Beer
patent: 4903439 (1990-02-01), Hoffmann
Schweizer Siegfried
Sefz Werner
Greigg Edwin E.
Greigg Ronald E.
Robert & Bosch GmbH
Rose Robert A.
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