Metal deforming – By use of tool acting during relative rotation between tool... – Work-hammering tool
Reexamination Certificate
2011-07-12
2011-07-12
Tolan, Edward (Department: 3725)
Metal deforming
By use of tool acting during relative rotation between tool...
Work-hammering tool
C072S046000, C072S123000, C470S002000, C470S009000, C470S011000, C470S049000, C029S517000
Reexamination Certificate
active
07975519
ABSTRACT:
A wind turbine installation comprises anchor bolts having a sheath or sleeve which extends above the cement foundation and the overlying grout layer. If desired, the sleeve may partially extend inside the base flange of the wind turbine tower. The sleeve may be manufactured from polypropylene, polyethylene or other materials having satisfactory mechanical properties, primarily that the material be capable of withstanding sufficient plastic deformation to cause the material to conform to the shape of the threads of the anchor bolts without the material failing. This swaging operation results in a crimped end which forms an interference fit with the threads of the anchor bolt thereby preventing or limiting the intrusion of water or other liquids into the bolt-sleeve annulus during the installation of the turbine foundation.
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Duncan, Esq. James M.
Klein, DeNatale, Goldner et al.
Tolan Edward
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