Brushing – scrubbing – and general cleaning – Implements – Pipe – tube – or conduit cleaner
Reexamination Certificate
2008-08-28
2011-11-22
Hail, Joseph J (Department: 3723)
Brushing, scrubbing, and general cleaning
Implements
Pipe, tube, or conduit cleaner
C474S135000
Reexamination Certificate
active
08060968
ABSTRACT:
An assembly for adjusting belt tension in a drain cleaning device is disclosed. The assembly includes an idler pulley assembly in which a pivotable idler pulley is urged against a belt by a tensioned spring. The tensile force exerted by the spring can be adjusted or otherwise changed by a rotatable spool engaged to the other end of the spring.
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Babb Larry F.
Rutkowski Michael J.
Emerson Electric Co.
Hail Joseph J
Hall, Jr. Tyrone
Rankin , Hill & Clark LLP
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