Measuring and testing – By abrasion – milling – rubbing – or scuffing
Reexamination Certificate
2007-05-29
2010-06-08
Williams, Hezron (Department: 2856)
Measuring and testing
By abrasion, milling, rubbing, or scuffing
Reexamination Certificate
active
07730761
ABSTRACT:
An apparatus for producing stress on a surface, comprising one or more service assembly and one or more cleaning assembly. The service assembly comprises one or more means for applying dirt to said surface, or one or more means for scuffing said surface, or one or more means for dragging a test material across said surface, or a combination thereof. The cleaning assembly comprises one or more scrubber, or one or more burnisher, or a combination thereof.Also provided is a method of testing a surface with such an apparatus.
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Gregory Walter Jay
Shah Nilesh
Tysak Theodore
Hemenway Carl P.
Rohm and Haas Company
Shabman Mark
Williams Hezron
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