Stone working – Sawing – Reciprocating
Reexamination Certificate
2008-06-17
2008-06-17
Ackun, Jr., Jacob K. (Department: 3723)
Stone working
Sawing
Reciprocating
C451S310000, C451S311000, C451S304000
Reexamination Certificate
active
07387118
ABSTRACT:
The invention provides a wire saw in which wire tension fluctuations occurring in swinging of a row of wires can be accommodated to thereby increase a velocity of the wire and to carry out cutting with efficiency and precision by utilizing swinging of the row of wires even with thin wire. In the wire saw having the row of wires formed by winding the wire about a plurality of work rollers provided to a swinging disk many times, for pushing a workpiece against the row of wires caused to reciprocate or travel in one direction at high velocity to cut the workpiece into a plurality of pieces, and for swinging the row of wires in cutting of the workpiece, a feed side pulley for guiding feed side wire going into the work rollers to the work rollers and a retrieving side pulley for guiding retrieving side wire going out of the work rollers to an outside are disposed coaxially on an axial center of rotation of the swinging disk so that the tension fluctuations do not occur in the wire even if the row of wires swings.
REFERENCES:
patent: 6024080 (2000-02-01), Hodsden
patent: 6095129 (2000-08-01), Kanemichi et al.
patent: 6279564 (2001-08-01), Hodsden et al.
Ackun Jr. Jacob K.
Takatori Corporation
Wenderoth , Lind & Ponack, L.L.P.
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