Blower

Claim 1

A BLOWER COMPRISING: A PAIR OF INTAKE PASSAGEWAYS HAVING INLET OPENINGS IN FACING SIDEWALLS THEREOF; A PAIR OF HOLLOW IMPELLER HOUSINGS, EACH OF SAID IMPELLER HOUSINGS HAVING ONE SIDEWALL AND AN INLET OPENING THROUGH SAID ONE SIDE WALL, EACH OF SAID IMPELLER HOUSINGS ALSO HAVING AN OPENING AT ONE POSITION AROUND ITS PERIPHERY; A HOLLOW CYLINDRICALLY SHAPED ROTOR IN EACH OF SAID IMPELLER HOUSINGS, EACH OF SAID ROTORS HAVING IMPELLER BLADES AT ITS PERIPHERY TO DRAW AIR FROM A CORRESPONDING INTAKE PASSAGEWAY AND TO DIRECT THE SAME THROUGH THE PERIPHERAL OPENING IN A CORRESPONDING IMPELLER HOUSING; AN ELECTRIC MOTOR HAVING ONE OF SAID ROTORS FIXED TO ONE END OF ITS DRIVE SHAFT AND THE OTHER FIXED TO THE OTHER END THEREOF, ONE OF SAID IMPELLER HOUSINGS BEING FIXED TO ONE SIDE OF SAID MOTOR AND THE OTHER OF SAID IMPELLER HOUSINGS BEING FIXED TO THE OTHER SIDE OF SAID MOTOR, SAID MOTOR HAVING AN APPROXIMATELY CYLINDRICAL HOUSING; A BRACKET FIXED IN POSITION RELATIVE TO SAID INTAKE PASSAGEWAYS; AND CLAMP MEANS ON SAID BRACKET EXTENDING AROUND AND ENGAGING SAID MOTOR HOUSING TO SUPPORT IT AND SAID IMPELLER HOUSINGS IN A POSITION SUCH THAT THE INLET OPENING IN ONE OF SAID IMPELLER HOUSINGS LIES CONTIGUOUS TO AND IN REGISTRY WITH THE INLET OPENING IN ONE CORRESPONDING INTAKE PASSAGEWAY AND THE INLET OPENING IN THE OTHER OF SAID IMPELLER HOUSINGS LIES CONTIGUOUS TO AND IN REGISTRY WITH THE INLET OPENING IN THE OTHER CORRESPONDING INTAKE PASSAGEWAY, SAID CLAMP MEANS BEING RELEASABLE TO PERMIT ROTATION OF SAID IMPELLER HOUSINGS AND SAID MOTOR ABOUT THE AXIS THEREOF TO A SELECTED POSITION.