Patent ID: 7516851

Claim:
A retaining system for a transmitter and a receiver for detecting an RF path through a porous element in a material separator, wherein the material separator includes a first frame having a first frame wall and a second frame having a second frame wall, wherein the porous element is received between the first frame wall and the second frame wall such that a first chamber and a second chamber are defined, the retaining system comprising: a first retainer within which the transmitter is housed, wherein the first retainer is affixed about an RF path through the first frame wall and provides a barrier to RF signals outside of the RF path through the first frame wall; wherein the first retainer comprises: a first ferrule having a first end affixed around the RF path through the first frame wall and a second end extending outward from the first frame wall; a first housing sealingly retained within the first ferrule and separating the transmitter from the first chamber; a first cap sealingly retained against the second end of the first ferrule and retaining the transmitter within the first housing and having a connector opening therethrough retaining a transmitter communication connector providing data exchange between the transmitter and an external device; and a second retainer within which the receiver is housed, wherein the second retainer is affixed about an RF path through the second frame wall and provides a barrier to RF signals outside of the RF path through the second frame wall.