Patent ID: 8755682
Filing Date: 2014-06-17
Classification: F24H,G05D,Y10T

Abstract:
1. A fluid heater, comprising: a heating element tube; first and second headers disposed proximate respective first and second ends of the heating element tube, each header defining a respective fluid passage arranged for fluid communication with the heating element tube, and the second header comprising: a first seal interposed between the first end of the heating element tube and the first header; a second seal interposed between the second end of the heating element tube and the second header; a first header plate disposed proximate the first header; a second header plate disposed proximate the second header; a plurality of tie bolts connecting the first and second headers to each other; and a spring disposed on each tie bolt and arranged to be compressed by a corresponding nut on that tie bolt as the nut is tightened on the tie bolt.