Grease extractor for kitchen ventilating systems

Claim 1

A GREASE EXTRACTOR FOR REMOVING GREASE, OIL AND OTHER CONTAMINANTS FROM A VAPOROUS EXHAUST STREAM IN A KITCHEN VENTILIATING SYSTEM, SAID EXTRACTOR COMPRISING THE COMBINATION OF A HOUSING HAVING TOP AND BOTTOM WALLS, FRONT AND REAR WALLS, AND A PAIR OF SIDE WALLS, SAID FRONT WALL FORMING A RESTRICTED, HORIZONTALLY ELONGATED ENTRANCEWAY FOR RECEIVING THE VAPOROUS EXHAUST STREAM, AN ENTRANCE BAFFLE EXTENDING REARWARDLY FROM THE TOP OF THE ENTRANCEWAY FOR DEFLECTING TH ENTERING EXHAUST STREAM REARWARDLY OVER THE BOTTOM WALL AND AGAINST SAID REAR WALL FOR DEFLECTING THE EXHAUST STREAM UPWARDLY PAST THE REAR EDGE OF SAID ENTRANCE BAFFLE, A SUBSTANTIALLY HORIZONTAL REAR BAFFLE EXTENDING FORWARDLY FROM SAID REAR WALL ABOVE SAID ENTRANCE BAFFLE TOWARD THE FRONT WALL OF THE EXTRACTOR, SAID REAR BAFFLE EXTENDING FORWARDLY BEYOND THE REAR EDGE OF SAID ENTRANCE BAFFLE AND BEING FORMED OF A SINGLE SHEET OF METAL WHICH IS TURNED BACK AT THE FORWARD END OF THE BAFFLE TO FORM A FLUID MANIFOLD EXTENDING ACROSS THE LENGTH OF THE BAFFLE AND TO STRENGTHEN SAID REAR BAFFLE, AND THE TURNED BACK PORTION OF THE SINGLE SHEET OF METAL HAS A LONGITUDINAL EDGE WHICH IS JOINED TO THE MAIN BODY PORTION OF SAID SHEET BY A FLUID-TIGHT CONTINUOUS WELL EXTENDING ACROSS THE FULL LENGTH OF THE BAFFLE, A PLURALITY OF NOZZLES IN FLUID COMMUNICATION WITH SAID MANIFOLD AND SPACED ALONG BOTH THE TOP AND BOTTOM OF SAID MANIFOLD FOR DISCHARGING A SELECTED A FLUID INTO THE EXTRACTOR BOTH ABOVE AND BELOW SAID REAR BAFFLE, TOP BAFFLE MEANS EXTENDING REARWARDLY FROM SAID FRONT WALL ABOVE SAID BAFFLE MEANS FOR DEFLECTING