Hot liquid metal pumps

• US 3,255,702 A
• Filed: 02/27/1964
• Issued: 06/14/1966
• Est. Priority Date: 02/27/1964
• Status: Expired due to Term

• Current Assignee: John A. Gehrm
• Original Assignee: John A. Gehrm
• Inventors: Gehrm, John A.
• Application Number:
  US04/347,925
• Time in Patent Office: 838 Days
• US Class Current: 415/197
• CPC Class Codes: F04D 7/065 for liquid metal

Claims

1. A PUMP OF THE CLASS DESCRIBED COMPRISING, IN COMBINATION, A MOUNTING PLATE, AN IMPELLER HOUSING HAVING TOP AND BOTTOM WALLS VERTICALLY SPACED BY A VERTICAL WALL AND HAVING, AT LEAST, ONE LIQUID INLET OPENING IN ONE OF ITS WALLS AND A LIQUID OUTLET OPENING IN ITS VERTICAL WALL, A CENTRIFUGAL IMPELLER IN SAID HOUSING IN PARALLEL RELATION WITH ITS TOP AND BOTTOM WALLS, THE BOTTOM WALL OF SAID HOUSING HAVING AN OPENING THEREIN OF A SUFFICIENT DIAMETER TO PERMIT THE PASSAGE THERETHROUGH OF SAID IMPELLER, A SINGLE ELONGATED MEMBER ATTACHED AT ITS ENDS TO SAID MOUNTING PLATE AND IMPELLER HOUSING FOR SUPPORTING SAID HOUSING ON SAID PLATE IN DISTANTLY SPACED RELATION THEREWITH;

A MOTOR MOUNTED ON SAID PLATE AND HAVING A SHAFT CONNECTED WITH SAID IMPELLER;

MEANS CONNECTED WITH SAID PLATE FOR SUSPENDING IT AND SAID HOUSING IN A HORIZONTAL POSITION ABOVE A FLOOR;

SAID IMPELLER HOUSING HAVING A THROUGH VERTICAL BORE IN COMMUNICATION WITH THE LIQUID OUTLET OPENING THEREIN, A REMOVABLE PLUG IN THE BOTTOM END OF SAID OPENING, A CIRCULAR RECESS IN THE TOP OF SAID IMPELLER HOUSING SURROUNDING THE VERTICAL BORE THEREIN, A LIQUID DISCHARGE PIPE SEALED AT ITS BOTTOM END IN SAID RECESS AND TERMINATING AT ITS UPPER END IN A DOWNWARDLY TAPERED FLANGE IMMEDIATELY ABOVE SAID MOUNTING PLATE, SAID MOUNTING PLATE HAVING THEREIN A GUIDE OPENING THROUGH WHICH SAID PIPE PROJECTS;

A CYLINDRICAL EXTENSION FITTING ATTACHED TO SAID MOUNTING PLATE IN CONCENTRIC RELATION WITH SAID GUIDE OPENING, SAID EXTENSION FITTING