Patent ID: 9594064
Date: 2017-03-14
CPC Classifications: G01N

Claim:
1. A plate type column, comprising: a) a plate-shaped main body; and b) a projecting portion protruding from a circumferential edge of the main body, the plate-shaped main body and the projecting portion forming therein a groove as a fluid-flow passage extending in the main body and the projecting portion, wherein an intermediate portion of the passage is provided in the main body, while end portions of the passage extend from the main body through the projecting portion, with each of the end portions being open to an outside at a tip of the projecting portion, thus allowing the main body and the projecting portion to individually and independently undergo a temperature regulation, and wherein two or more projecting portions are provided for the main body, and each of the end portions of the passage is extended through a different projecting portion.