Degreaser freeboard control
OwnerRobert G. Cormackinventor
Life of this patent
Estimating the term…
Abstract
A vapor degreaser with solvent tank, a liquid heated at the bottom of the tank to produce vapor, condensing coils at the wall of the tank defining a vapor level, and a condensate collector and return, with a freeboard or open space between the vapor level and the open top of the tank for insertion and removal of articles to be cleaned. Inserts are installed at each side of the interior of the tank at the freeboard level to increase the freeboard depth-to-width ratio to meet air pollution control requirements.
Claims6
In a vapor degreaser having a rectangular tank for a solvent, condensing means at the wall of said tank defining a vapor level with a freeboard between the vapor level and the open top of the tank of depth D and width W, having a fixed design freeboard ratio defined as the ratio of the debth of said tank between said open top and a predetermined vapor level within said tank, to said width W, condensate collecting means for returning condensed solvent vapor to the lower portion of the tank, and means for heating the liquid solvent, the improvement for increasing the tank freeboard depth-to-width ratio D/W and comprising:
- means to be inserted into said degreaser, dimensioned for increasing said design freeboard ratio sufficient to satisfy predetermined air pollution control requirements, including,
- a tank insert mounted within said tank and having a substantially vertical wall extending from adjacent said tank top to said vapor level,
- spacer means for positioning said insert wall inward from the tank wall reducing the freeboard width W, and
- stop means positioned between said insert wall and tank wall blocking vapor flow upward between said walls.
Dependencies are inferred from the claim text.