Centrifuge

Claim 1

A CENTRIFUGE FOR CAPILLARY TUBES COMPRISING A CASING HAVING A LOWER PORTION AND AN UPPER CIRCULAR PORTION, MOTOR MEANS WITHIN THE LOWER PORTION OF SAID CASING AND IN SPACED RELATION TO THE INNER SURFACE PORTIONS OF THE SIDE WALLS THEREOF, SHAFT MEANS EXTENDING UPWARDLY FROM SAID MOTOR MEANS, A FLAT HEAD MEMBER FOR CARRYING CAPILLARY TUBES ON THE TOP SURFACE THEREOF DISPOSED WITHIN THE UPPER PORTON OF SAID CASING AND OPERATIVELY ENGAGED WITH SAID SHAFT MEANS, VENTILATING OPENINGS IN LOWER PORTIONS OF THE SIDE WALLS OF SAID CASING, A COVER MOVABLY MOUNTED ON THE UPPER EDGE OF THE UPPER CIRCULAR PORTION AND SAID CASING AND OVERLAYING SAID HEAD MEMBER, SAID COVER HAVING A CENTRALLY LOCATED VENTILLING OPENING, GASKET MEANS FOR SEALING SAID COVER TO THE RIM OF SAID CASING IN THE CLOSED POSITION THEREOF, PAN MEANS MOUNTED ON THE UPPER CIRCULAR PORTION OF SAID CASING WITH SIDE AND BOTTOM WALL PORTIONS THEREOF RESPECTIVELY SPACED FROM THER PERIPHERAL EDGE AND BOTTOM SURFACE OF SAID HEAD MEMBER, THE BOTTOM WALL PORTION OF SAID PAN MEANS BEING FORMED WITH A CENTRAL VENTILATING OPENING WITH SAID SHAFT MEANS PASSING THERETHROUGH TO ALLOW AIR CURRENTS INCIDENT TO THE ROTATION OF SAID HEAD MEMBER AND ENTERING THE OPENING OF SAID COVER TO PASS RADIALLY OUTWARD ALONG THE UPPER SURFACE OF SAID HEAD MEMBER, DOWNWARDLY ABOUT THE PERIPHERAL EDGE THEREOF, RADIALLY INWARD ALONG THE UNDER SURFACE THEREOF AND DOWNWARDLY THROUGH THE VENTILATING OPENING IN THE BOTTOM WALL OF SAID PAN MEANS ABOUT SAID MOTOR MEANS AND OUTWARDLY THROUGH SAID VENTILATING OPENINGS IN THE LOWER PORTIONS OF SAID CASING TO COOL AND VENTILATE THE INTERIOR OF SAID CASING ABOVE AND BELOW THE ROTATING FLAT HEAD MEMBER.