Joints and connections – Interfitted members – Interdigitated ends
Reexamination Certificate
2004-11-26
2008-08-26
Ferguson, Michael P (Department: 3679)
Joints and connections
Interfitted members
Interdigitated ends
C403S339000, C403S340000, C403S353000, C403S381000, C052S590200, C052S592100
Reexamination Certificate
active
07416363
ABSTRACT:
A joint for flat rigid parts comprises projections, which are embodied on the mating sides of the parts in the form of bulbous breadths at the edge thereof and necks at the basis thereof, and complementary joggles, which are embodied in the form of bulbous slots corresponding to the bulbous breadths of the projections and gradually changing into grooves corresponding to the projections necks. The surfaces of the projections edges and the surfaces of the slots bottoms mating therewith are embodied in the form of cones, wherein the peaks of the conical surfaces of the projections edges and of the slats bottoms are arranged an the opposite sides with respect to the connecting parts. The radius of curvature of the guiding lines of the conical surfaces of the projections edges and of the slots bottoms can be embodied in such a way that they tend to infinity; at least one connecting part can be embodied in the form of a through-thickness composite part.
REFERENCES:
patent: 757812 (1904-04-01), Keyes
patent: 4541525 (1985-09-01), Braun et al.
patent: 5682935 (1997-11-01), Bustamante
patent: 5765707 (1998-06-01), Kenevan
patent: 5940935 (1999-08-01), Julius
patent: 2 815 678 (2007-04-01), None
patent: 2 221 273 (1990-01-01), None
patent: 1624218 (1988-08-01), None
Translation of FR 2 815 678. European Patent Office online translation.
Ferguson Michael P
Gugliotta John D.
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