Expanded – threaded – driven – headed – tool-deformed – or locked-thr – Having separate expander means – With hole forming means
Reexamination Certificate
2008-01-29
2008-01-29
Mitchell, Katherine (Department: 3677)
Expanded, threaded, driven, headed, tool-deformed, or locked-thr
Having separate expander means
With hole forming means
C411S501000, C411S030000, C411S031000, C411S034000, C411S043000
Reexamination Certificate
active
07322783
ABSTRACT:
A river body (40) is formed with cutting teeth (68) in a forward edge (66) of the rivet body. A mandrel (96) is formed at a forward end with an enlarged head (104) having a drill point (60) thereon. A plurality of the rivet bodies (40) are stacked on the mandrel (96), with the drill point (60). The rivet body (40a) is rotated and, through rotative coupling, the mandrel (96) is also rotated. The rotating drill point (60) forms pilot holes I workpieces (186) and (188), and the rotating cutting teeth (68) enlarge the pilot holes to form holes (192) and (194), respectively, for receipt of a cylindrical portion (42) of the lead rivet body (40a).
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Pearce Richard A.
Smith Daniel R.
Stanko Robert M.
Harness & Dickey & Pierce P.L.C.
Mitchell Katherine
Newfrey LLC
LandOfFree
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