Expanded – threaded – driven – headed – tool-deformed – or locked-thr – Having separate expander means – Including sleeve and distinct tapered expander
Reexamination Certificate
2011-08-23
2011-08-23
Omgba, Essama (Department: 3726)
Expanded, threaded, driven, headed, tool-deformed, or locked-thr
Having separate expander means
Including sleeve and distinct tapered expander
C411S060100, C411S060200, C411S052000, C029S432000, C029S525020, C029S525050, C029S525110
Reexamination Certificate
active
08002506
ABSTRACT:
A self-expanding and self-undercutting guard rail bolt includes a dowel having a guard rail fastening end and a ring. The fastening end is configured to be driven in rotation, and the ring is configured to rigidly connect to a first screwing end of the dowel by an incipient fracture portion. The self-expanding and self-undercutting guard rail bolt further includes a counter-dowel screwed to the dowel by a second screwing end. The counter-dowel includes an expansion cone, and an anti-rotation head having at least one edge which projects beyond a periphery of the dowel to prevent rotation of the counter-dowel about an axis of the guard rail bolt.
REFERENCES:
patent: 3523482 (1970-08-01), Ploch et al.
patent: 4015826 (1977-04-01), Lauzier
patent: 4640654 (1987-02-01), Fischer et al.
patent: 4904134 (1990-02-01), Fischer
patent: 4940372 (1990-07-01), Fischer
patent: 4943195 (1990-07-01), Fischer
patent: 4986711 (1991-01-01), Fischer
patent: 5032046 (1991-07-01), Fischer
patent: 5314277 (1994-05-01), Fischer
patent: 5690455 (1997-11-01), Fischer et al.
patent: 6524045 (2003-02-01), Pourtier
patent: 6827535 (2004-12-01), Fuchs et al.
patent: 6942439 (2005-09-01), Rouger
patent: 7357613 (2008-04-01), Houck et al.
patent: 2004/0096288 (2004-05-01), Haug et al.
patent: 2004/0253075 (2004-12-01), Liebig et al.
patent: 2006/0115343 (2006-06-01), Hartney et al.
patent: 2009/0274533 (2009-11-01), Zimmer et al.
patent: 2009/0274534 (2009-11-01), Zimmer et al.
patent: 3524284 (1987-01-01), None
patent: 0412257 (1991-02-01), None
Pourtier Fabrice
Ricordi Christian
Lowe Hauptman & Ham & Berner, LLP
Omgba Essama
Societe de Prospection et d'Inventions Techniques Spit
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