Abrasive tool making process – material – or composition – Impregnating or coating an abrasive tool
Patent
1982-09-30
1984-07-03
Whitehead, Harold D.
Abrasive tool making process, material, or composition
Impregnating or coating an abrasive tool
51324, 219200, 219201, 264320, B24B 4106
Patent
active
044571143
ABSTRACT:
A workpiece carrier has a support bar centrally supported at one end of a stem portion. The stem is carried at its opposite end on a base. Columns are interposed between the ends of the support bar and the base. Heat is applied to the columns, preferably by resistive heating elements, to heat them and cause their thermal expansion, causing the support bar ends to be bent away from the base. A relatively flexible workpiece which has been bonded to the support arms on a surface facing away from the base will undergo the same bend.
REFERENCES:
patent: 2393593 (1943-05-01), Daiber
patent: 3146977 (1964-09-01), Coates et al.
patent: 3470289 (1969-09-01), Katsuki et al.
patent: 4297314 (1981-10-01), Schmidt
patent: 4398991 (1983-08-01), Thies
IBM Technical Disclosure Bulletin, vol. 24, No. 1A, Jun. 1981, p. 198, Correction of Bowing of Magnetic Head Rows.
IBM Technical Disclosure Bulletin, vol. 13, No. 4, Sep. 1970, p. 1032, Polishing Apparatus.
Hennenfent Douglas J.
Holmstrand Allan L.
Kracke Alan G.
Genovese J. A.
Hartman Judy J.
Magnetic Peripherals Inc.
Schwarz E. L.
Whitehead Harold D.
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