Abrasive tool making process – material – or composition – Impregnating or coating an abrasive tool
Patent
1986-08-25
1987-12-29
Whitehead, Harold D.
Abrasive tool making process, material, or composition
Impregnating or coating an abrasive tool
B24B 1900
Patent
active
047151498
ABSTRACT:
Flow valve seat grinding apparatus incorporating an improved steady rest means. Includes a tubular drive shaft housing which houses and supports a rotatable and longitudinally movable drive shaft means. Drive shaft is connected through a flexible torque coupler to drive a valve seat grinding head. Grinding head is adapted to grind a valve seat located within a valve body. Includes adjustable anchor operable to laterally extend at least three anchor members into fixed anchoring contact with a sidewall of a valve body to laterally support the shaft housing in fixed position within the valve body.
REFERENCES:
patent: 126522 (1872-05-01), Cooper
patent: 1308222 (1919-07-01), Brown
patent: 1796208 (1931-03-01), Mahoney
patent: 2292383 (1942-08-01), Liebmann
patent: 2541412 (1951-02-01), Frost
patent: 2908120 (1959-10-01), Jensen
patent: 4106880 (1978-08-01), Anders
patent: 4169487 (1979-10-01), Watson
Matthews Guy E.
Whitehead Harold D.
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