Patent ID: 9637820
Date: 2017-05-02
CPC Classifications: C23C,Y10T

Claim:
1. A flame guard and exhaust system for use in a combustion deposition depositing system for forming a coating on a substrate via at least one flame of at least one burner, the flame guard and exhaust system comprising: an external baffle; an internal baffle spaced apart from the external baffle, the internal baffle to be closer than the external baffle to the at least one burner; an exhaust duct located over the external and internal baffle; first and second walls to be respectively provided at opposing ends of the at least one burner and joining the external baffle to the internal baffle so as to form a continuous boundary of the exhaust duct such that air that flows into the duct must pass between the external baffle and internal baffle, wherein the external baffle is sized and positioned to (1) reduce an amount of air flow into a deposition area proximate to the at least one flame during operation of the combustion deposition depositing system and (2) serve as a most external wall of the exhaust duct, wherein the internal baffle is sized and positioned to (1) at least partially confine the deposition area to the area immediately under the at least one burner face during operation of the combustion deposition depositing system and (2) provide an internal wall of the exhaust duct; a mechanical, electrical, and/or pneumatic system to vertically adjust the flame guard and exhaust system; and wherein the internal and external baffles are height adjustable independent of one another.