Expanded – threaded – driven – headed – tool-deformed – or locked-thr – Internally threaded fastener element – e.g. – nut – etc. – Multipart
Reexamination Certificate
2007-08-21
2009-12-29
Estremsky, Gary (Department: 3677)
Expanded, threaded, driven, headed, tool-deformed, or locked-thr
Internally threaded fastener element, e.g., nut, etc.
Multipart
C411S014500
Reexamination Certificate
active
07637706
ABSTRACT:
A fastener includes a threaded circular ring half divided along a plane intersecting a central longitudinal axis. One of the end walls is formed with a truncated conical load-bearing surface that is seated on a truncated conical thrust surface formed on a circular ring of a stress generator. The load bearing and thrust generating surfaces are arranged to present a conjugate pair of truncated conical surfaces to provide a favorable resolution of forces developed by torque applied to jack bolts distributed about an outwardly surrounding cylindrical stress generator body section.
REFERENCES:
patent: 4332169 (1982-06-01), Stuart
patent: 4927305 (1990-05-01), Peterson, Jr.
patent: 5161928 (1992-11-01), Burdick, Jr.
patent: 6799930 (2004-10-01), More et al.
Steinbock Allan T.
Steinbock Robert C.
Estremsky Gary
Kikel Suzanne
Poff Clifford A.
Steinbock Machinery Corproation
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