Cutlery – Cutting tools – Saw
Reexamination Certificate
2007-04-24
2007-04-24
Dexter, Clark F. (Department: 3724)
Cutlery
Cutting tools
Saw
C030S272100, C030S277400, C091S278000, C091S325000, C091S330000
Reexamination Certificate
active
10237129
ABSTRACT:
A main spindle of an air saw is reciprocated by sliding a piston in a cylinder chamber with the pressure of air supplied to the cylinder chamber via an air supply path so as to alternately apply the air pressure to pressure-receiving surfaces of a back plate and a front plate, wherein a rear air-cushion chamber is formed in a portion for fixing a return spring for urging the back plate toward the center of a cylinder while a front air-cushion chamber is formed in a portion for fixing a return spring for urging the front plate toward the center of the cylinder, so that the front and rear balance is maintained.
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Dexter Clark F.
Kuken Co., Ltd.
Wenderoth, Lind and Ponack, L.L.P.
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