Vent fan and bilge pump

Claim 1

THE COMBINATION OF HOUSING MEANS INCLUDING SEALING MEANS AND A PAIR OF IDENTICAL HOUSING SECTIONS EACH INCLUDING AN IMPELLER CHAMBER AND A MOTOR CAVITY SEPARATED BY A PARTITION INCLUDING AN APERTURE, SAID HOUSING SECTIONS BEING DISPOSED IN INVERTED RELATION TO EACH OTHER ON OPPOSITE SIDES OF SAID SEALING MEANS TO THEREBY DEFINE A SUBSTANTIALLY CLOSED CHAMBER FORMED BY SAID MOTOR CAVITIES, A MOTOR HAVING A SUPPORTING FRAME AND A DOUBLE ENDED ARMATURE SHAFT, CO-OPERATING MEANS ON SAID FRAME AND ON EACH OF SAID HOUSING SECTIONS FOR SECURING SAID SECTIONS TO SAID FRAME TO SUPPORT SAID FRAME WITHIN SAID CHAMBER WITH SAID ARMATURE SHAFT EXTENDING THROUGH SAID APERTURES AND FOR ENGAGING SAID HOUSING SECTIONS AGAINST SAID SEALING MEANS, AND PACKING MEANS IN SAID APERTURES AND AROUND SAID SHAFT, WHEREBY SAID MOTOR CHAMBER IS SUBSTANTIALLY FLUIDTIGHT.