Integrated U-tube and adsorbent unit

Abstract

An integrated U-tube and adsorbent unit including a U-tube having first and second legs and a return bend, a space between the first and second legs and the return bend, adsorbent in the space, opposite sides on the first and second legs and the return bend, permeable covers bonded to the first and second opposite sides to contain the adsorbent within the space, a hole in the return bend, a frame connected to the U-bend and defining a space in communication with the hole, and filter material on the frame. An integrated U-tube and adsorbent unit including a plastic U-tube and a self-contained adsorbent unit having a plastic cover bonded to the U-tube with the body of the self-contained adsorbent unit positioned between the legs of the U-tube.

Dependencies are inferred from the claim text.