Expanded – threaded – driven – headed – tool-deformed – or locked-thr – Having structure to restrict rotation of threaded – mating... – Comprising a thread lock
Reexamination Certificate
2006-08-29
2006-08-29
Sandy, Robert J. (Department: 3677)
Expanded, threaded, driven, headed, tool-deformed, or locked-thr
Having structure to restrict rotation of threaded, mating...
Comprising a thread lock
C411S452000, C411S451400, C411S451100
Reexamination Certificate
active
07097403
ABSTRACT:
A reduced material fastener has a shank cross-section selected to provide a parting line. Having a parting line means that the fastener may be made using two opposing dies, including roller dies, to cold form the cross-section. The cross-sections do not have to be symmetrical with respect to the parting line as long as hypothetical dies can be separated. Typical fasteners include common nails. Cross-sections having parting lines may have fin-like protuberances that result in less material being used for the same overall outline as a round cross-section. A computer aided design methodology and a nail making apparatus are also disclosed.
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http://web.archive.org/web/20010605022131/http://www.efunda.com/designstandards/plastic—design/draft.cfm.
U.S. Appl. No. 60/434,350, filed Dec. 18, 2002, Wall.
Douma Mark
Reese David
Sandy Robert J.
The Everhold Group, Corporation
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