Patent ID: 9711838
Date: 2017-07-18
CPC Classifications: G01F,H01P,H01R

Claim:
1. A coaxial probe for a guided wave radar (GWR) level measurement system, the coaxial probe comprising: a first inner rod section comprising a first rod body and a first rod end located at one end of the first inner rod section, wherein the first rod end comprises internal threads and diametrically opposed flats, wherein the first rod body has a circular cross-section, and wherein the first rod end has a first non-circular cross-section; a spacer having an inner bore and a plurality of flow channels wherein the inner bore is shaped and dimensioned to slide onto the first rod end, wherein the inner bore is shaped and dimensioned such that it cannot slide completely onto the first rod body, and wherein the spacer is positioned onto the first rod end; a second inner rod section comprising a second rod body and a second rod end located at one end of the second inner rod section, wherein the second rod end comprises internal threads and diametrically opposed flats, wherein the second rod body has the circular cross-section, and wherein the second rod end has a non-circular cross-section; a threaded rod threaded into the first rod end and into the second rod end to thereby join the first inner rod section and the second inner rod section; and an outer tube wherein the first inner rod section, the second inner rod section, and the spacer are positioned inside the outer tube, wherein the spacer centers the first inner rod section and the second inner rod section within the outer tube, and wherein the flow channels allow a fluid inside the outer tube to flow past the first inner rod section and past the spacer and to the second inner rod section.