Opposed Conical Coil Topology for Non-Radiative Near-Field Gravitational Effects: A Framework Summary of Four Studies

This document provides a structural summary of four previously published studies, all based on a common geometric core — the Bidirectional Closed Opposed Conical Coil (BCOCC). In each study, a distinct driving condition (quadrature-phase feeding, parametric resonance, magnetic inductive coupling, and 180° anti-phase feeding) produced a distinct physical effect: time-varying gravitomagnetic signal, time-varying gravitational potential, steady-state frame-dragging field, and controlled magnetic reconnection. The present summary outlines the shared geometric basis, the unifying mechanism of non-radiative near-field tunability, and the role of frequency as a scale-selection parameter. The series forms a coherent framework in which a single electromagnetic topology can be reconfigured to access multiple distinct gravitationally relevant effects. No new experimental predictions are introduced; this document serves as an archival orientation for the series.