×

Variable inductor with non-magnetic core and method of manufacture therefor

  • US 8,248,198 B2
  • Filed: 07/22/2009
  • Issued: 08/21/2012
  • Est. Priority Date: 07/22/2009
  • Status: Active Grant
First Claim
Patent Images

1. A variable inductor, comprising:

  • a dielectric core having a threaded portion on an outer surface thereof and a recess coaxial with the central longitudinal axis of the dielectric core;

    a solid, non-magnetic rod positioned within the coaxial recess, the rod extending beyond half the length of the dielectric core; and

    a coil received by the threaded portion of the dielectric core,wherein the dielectric core can be rotated to move the rod and the threaded portion of the dielectric core with respect to the coil from a first position where the entire length of the rod and the threaded portion of the dielectric core are surrounded by the coil to a second position where a portion of the rod extends beyond the coil, to vary the inductance of the variable inductor.

View all claims
  • 2 Assignments
Timeline View
Assignment View
    ×
    ×