Buckles – buttons – clasps – etc. – Trim molding fastener – Resilient metal type
Reexamination Certificate
2007-10-09
2007-10-09
Brittain, James (Department: 3677)
Buckles, buttons, clasps, etc.
Trim molding fastener
Resilient metal type
Reexamination Certificate
active
11001825
ABSTRACT:
A spring fastener characterized by a structure having a top portion and a cavity in which the rib of a first article, such as a plastic panel for example having a lower side, may be engaged, and is also suitable to be engaged reversibly in a slot of a second article, such as a metal sheet for example, like the frame of a car for example. The spring fastener also comprises engagement springs having a peak, a front end, and an engagement region between the peak and the front end. The spring fastener further comprises side spacers disposed at the top portion and being adaptable to reach the vicinity or touch the lower side of the first article. It is highly preferable that the fastener comprises barbs with inwardly bent front ends, and that the engagement regions further have a single sided ripple. The configuration of this fastener, as well as that of the assembly of the fastener with the first and second article highly improves the balance of insertion to removal ratio, the assembly stability, rigidity, and avoidance of rumbling, among numerous other advantages.
REFERENCES:
patent: 5314280 (1994-05-01), Gagliardi et al.
patent: 5992914 (1999-11-01), Gotoh et al.
patent: 6381811 (2002-05-01), Smith et al.
patent: 6928705 (2005-08-01), Osterland et al.
patent: 2003/0233738 (2003-12-01), Osterland et al.
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