Surface grinder for ball of ball valve

Details Surface grinder for ball of ball valve Surface grinder for ball of ball valve

2011-01-04

2011-01-04

Rachuba, Maurina (Department: 3727)

Abrading

Precision device or process - or with condition responsive...

With feeding of tool or work holder

C451S268000, C451S548000

Reexamination Certificate

active

07862403

ABSTRACT:
A surface grinder for a ball of a ball valve comprises a ball positioning device at an X axis for driving the ball to rotate about the X axis and a grinding device at a Z axis for driving a grindstone set to rotate about the Z axis, wherein the grindstone set grinds a spherical surface of the ball.

REFERENCES:
patent: 1806918 (1931-05-01), Riggs
patent: 1989215 (1935-01-01), Seybold
patent: 2082404 (1937-06-01), Leshure
patent: 3300905 (1967-01-01), Gardner
patent: 3716951 (1973-02-01), Walters
patent: 3818644 (1974-06-01), Walters
patent: 3961448 (1976-06-01), Akahane
patent: 3971164 (1976-07-01), Albin et al.
patent: 6402600 (2002-06-01), Besch
patent: 7220171 (2007-05-01), Riel

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