Abstract: A centrifugal spark arrestor having a main body portion with a first end and a second end spaced from one another. The main body has an interior wall defining a flow path for the flow of air through the main body and a longitudinal axis. An inlet is positioned at the first end and extends generally perpendicular to the longitudinal axis. The inlet is in operative communication with the flow path. An outlet is positioned at the second end; the outlet is in operative communication with the flow path. At least one baffle is positioned within the main body portion between the first and second ends, partially extending into the flow path. Air is pulled into the inlet and forced initially in a direction perpendicular to the longitudinal axis and against the interior wall. The air is forced through the main body portion to the outlet in a centrifugal flow path. The baffle is engaged by the air flowing through the main body portion with any particles entrained within the air impinging upon the baffle.

Abstract: A work cell assembly such as welding cell assembly and a method for assembling the same is provided. The work cell has a perimeter wall including an upper wall edge defining an open top. A fluid filtration unit draws in fluid from the work cell and removes contaminants. A fluid moving device including an air blade assembly adjacent the upper wall edge and an inlet adjacent the upper wall edge and spaced downstream from the air blade assembly establish therebetween a sheet-like fluid barrier extending across the open top. The fluid barrier is defined by a continuous flow of fluid traveling across the open top for entraining the contaminant and creating a ceiling effect across the open top to prevent escape of the contaminant from the work cell through the open top. The fluid barrier has a narrow vertical extent to prevent disturbance of the fluid in the work cell.

Abstract: The present invention discloses a composition of matter having anti-inflammatory characteristics to be used in the treatment of dermatological inflammatory responses. The composition includes four salts and an oxidant. Also disclosed herein are methods of preparing the composition and methods of using the compositions.