Expanded – threaded – driven – headed – tool-deformed – or locked-thr – Headed fastener element with nut – washer – securing means or cap – Headed fastener element with securing means and biasing spring
Reexamination Certificate
2006-10-10
2006-10-10
Saether, Flemming (Department: 3677)
Expanded, threaded, driven, headed, tool-deformed, or locked-thr
Headed fastener element with nut, washer, securing means or cap
Headed fastener element with securing means and biasing spring
C411S553000, C024SDIG053
Reexamination Certificate
active
07118316
ABSTRACT:
A fixing element of plastic is provided which includes a foot part for insertion into an oblong hole of a carrier plate. The foot part includes of a head corresponding to the edge of the oblong hole and of a shaft adapted to the width of the oblong hole. The fixing element can be locked in the oblong hole after the insertion of the head by a quarter turn under elastic deformation of the shaft. The shaft includes a middle strut connecting the head to the fixing element. The strut has the width of the oblong hole. A shank is formed on each of the two edges of the middle strut at a right angle and in opposite directions. The shank is elastically bent towards the middle strut during the screwing in of the shaft through the edge of the oblong hole and after a quarter turn returns to its original position due to the elastic return force of the plastic and prevents a rotation in the opposite direction.
REFERENCES:
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patent: 3220078 (1965-11-01), Preziosi
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patent: 4375879 (1983-03-01), Kojima
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patent: 4705442 (1987-11-01), Fucci
patent: 4981405 (1991-01-01), Kato
A. Raymond & CIE
Gifford, Krass, Groh Sprinkle, Anderson & Citkowski, P.C.
Saether Flemming
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