Static structures (e.g. – buildings) – Processes – Anchor – bond – etc.
Reexamination Certificate
2011-01-11
2011-01-11
Canfield, Robert J (Department: 3635)
Static structures (e.g., buildings)
Processes
Anchor, bond, etc.
C411S453000
Reexamination Certificate
active
07866116
ABSTRACT:
A connecting device includes an axial core and a plurality of helical projections that extend radially from the core. The core has a cross section comprising two-fifths or less of the circumscribed cross sectional area of the device and the accuracy of the pitch of the helical projections varies by no more than 0.5% from any given probate pitch along the axis of the device. Another connecting device includes an axial core and two or three helical fins projecting radially from the core, wherein the core has a cross section comprising two-fifths or less of the circumscribed cross sectional area of the device, the accuracy of the pitch of the helical fins varies by no more than 0.5% from any given probate pitch along the axis of the device and wherein the root of the fin material includes a radiused surface. A further connecting device includes a twisted wire portion having an axial core and a plurality of projecting fins that extend radially from the core in a constant helical configuration, wherein the core has a cross section comprising two-fifths or less of the circumscribed cross sectional area of the wire, wherein the device has a pointed leading end and a rear end having a retaining head or clip.
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European Search Report for Application No. EP 06 01 5877.
Canfield Robert J
Fay Sharpe LLP
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