Stone working – Sawing – Rotary
Reexamination Certificate
2007-12-04
2007-12-04
Shakeri, Hadi (Department: 3723)
Stone working
Sawing
Rotary
C310S052000
Reexamination Certificate
active
11071402
ABSTRACT:
A cutting machine includes a cutting supporting frame, a cutting head arrangement and a motor air flow arrangement which includes a driving motor to drive a cutting blade to rotate, a motor case defining a motor cavity within an open end inlet end, an open outlet end and a circumferential wall, and an air intake hood sheltering around the motor case to define an air intake passage between the air intake hood and the motor, an air intake window communicating an air intake passage with the air intake hood, an air discharging slot communicating with the open outlet end, and a sidewall defining an air chamber between an inner side portion of the air intake hood and the open inlet end. When air is sucked through the air intake window, the air is detoured to enter into the motor cavity through the air intake passage and the air chamber to generate a circulated motion of air cycle in the air intake hook for enhancing a sucking effect of the driving motor.
REFERENCES:
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patent: 5701676 (1997-12-01), Itoh
patent: 6294852 (2001-09-01), Lee
Chan Raymond Y.
David and Raymond Patent Group
Shakeri Hadi
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