Abrading – Machine – Endless band tool
Reexamination Certificate
2006-11-07
2006-11-07
Nguyen, Dung Van (Department: 3723)
Abrading
Machine
Endless band tool
C451S451000
Reexamination Certificate
active
07131897
ABSTRACT:
A portable rail cutting apparatus is presented herein. The portable rail cutting apparatus comprises a housing encasing a motor, the motor configured to drive a rotary abrasive blade, a drive pulley coupled to the motor, a driven pulley coupled to the rotary abrasive blade, a loop drive belt engaged by the drive pulley at one end and engaging the driven pulley at another end, and an automatic belt tensioning mechanism. The automatic belt tensioning system comprises a spring and push rod assembly that applies a pre-set tension to the loop drive belt. The portable rail cutting apparatus may also comprise an adjustable protective guard member that partially surrounds the rotary abrasive blade and includes a detent mechanism configured to provide integral travel positions for the adjustable protective guard member.
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Nguyen Dung Van
Pillsbury Winthrop Shaw & Pittman LLP
The Stanley Works
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