METHOD AND DEVICE FOR PROTECTIVELY COVERING A HEATING ELEMENT USED TO HEAT A CHEMICAL BATH

摘要

A method of inhibiting material in a chemical bath (16) from accumulating on a heating element (14) involves placing the heating element (14) in a protective sleeve (12). The sleeve (12) can be made of two sheets of material such as PTFE that are sealed together along the periphery of the sleeve. The heating element generally enclosed by the sleeve can then be used in a chemical bath. The fluid pressure of the chemical bath presses the sleeve against the heating element to facilitate efficient heat transfer.