Expanded – threaded – driven – headed – tool-deformed – or locked-thr – Internally threaded fastener element – e.g. – nut – etc. – Having cap
Reexamination Certificate
2011-08-23
2011-08-23
Saether, Flemming (Department: 3677)
Expanded, threaded, driven, headed, tool-deformed, or locked-thr
Internally threaded fastener element, e.g., nut, etc.
Having cap
C411S377000
Reexamination Certificate
active
08002508
ABSTRACT:
A cover for the protection of large bolts and nuts, such as those used to secure wind turbine towers to foundations, from the weather. The protective cover may be tubular in shape and designed to be forcefully pressed over the bolt while ribs on the interior of the cover form an interference fit with the threading on the bolt. A larger portion located at the bottom of the cover protectively surrounds the nut and washer without touching either. The bottom can then seal against a surface, such as the surface of a mounting flange of a tower, to prevent the entry of corroding moisture.
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Chernoff Vilhauer McClung & Stenzel LLP
Griptight Bolt Cover Co.
Saether Flemming
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