Patent ID: 7249504

Claim:
A level meter for measuring a level of a product in a container by means of electromagnetic signals, comprising: a housing; an insert located in said housing at an end thereof in the direction away from the container; at least one waveguide which extends into the container, said at least one waveguide defining a longitudinal axis, carrying signals into the container toward a product surface in the container, and carrying reflected signals from the product surface back out of the container, said at least one waveguide is secured to said housing mounted on the container; and an elastomeric element fastened parallel to said longitudinal axis, said elastomeric element rests sealingly on said housing and said at least one waveguide, and is adjoined by a recess surrounding said at least one waveguide, wherein: said recess is defined by said at least one waveguide, said elastomeric element and said insert.