Close coupled motor driven gear reducing unit

Claim 1

A GEAR REDUCING UNIT FOR ATTACHMENT TO THE END PLATE OF A MOTOR HAVING AN AXIALLY EXTENDING SHAFT PROJECTING THEREFROM, AND GENERALLY RADIALLY OUTWARDLY FACING ABUTMENTS SURFACES SPACED CONCENTRICALLY WITH RESPECT TO SAID SHAFT, SAID UNIT COMPRISING: A GENERALLY CUP-SHAPED BACKPLATE HAVING AN END WALL WITH AN OPENING THERETHROUGH THAT IS LARGER THAN THE SHAFT OF THE MOTOR AND THROUGH WHICH THE SHAFT IS ADAPTED TO EXTEND, SAID GENERALLY CUP-SHAPED BACKPLATE HAVING SIDEWALL PORTIONS WITH ABUTMENT SURFACES CONCENTRIC WITH SAID OPENING FOR CENTERING SAID OPENING OVER THE SHAFTS WHEN SAID ABUTTMENT SURFACES OF SAID BACKPLATE ARE IN ENGAGEMENT WITH THE ABUTMENT SURFACES OF THE MOTOR, A DRIVE GEAR SMALLER THAN SAID OPENING, SAID DRIVE GEAR HAVING AN AXIALLY EXTENDING TUBULAR PROJECTION ON ONE SIDE THEREOF HAVING AN OUTER DIAMETER AT LEAST AS GREAT AS THE OUTER DIAMETER OF SAID GEAR, SAID TUBULAR PROJECTION BEING ADAPTED OF SAID THROUGH SAID OPENING AND HAVING AN AXIALLY EXTENDING INTERNAL OPENING ADAPTED TO RECEIVE THE SHAFT OF SAID MOTOR, MEANS FOR PREVENTING THE PASSAGE OF OIL THROUGH SAID OPENING OF SAID TUBULAR PROJECTION WHEN INSTALLED ON THE SHAFT, DRIVE MEANS FOR ESTABLISHING A DRIVING CONNECTION BETWEEN SAID DRIVE GEAR AND THE MOTOR SHAFT, MEANS FOR ESTABLISHING AN OIL SEAL BETWEEN SAID TUBULAR PROJECTION AND THE SIDEWALLS OF SAID OPENING IN SAID BACKPLATE, AND OIL RETAINING HOUSING POSITIONED ON THE SIDE OF SAID GENERALLY CUPSHAPED BACKPLATE OPPOSITE SAID ABUTTMENT SURFACES THEREON, AND OUTPUT SHAFT CARRIED BY SAID HOUSING, AND GEARING SUPPORTED BY SAID UNIT IN A POSITION SO MESH WITH SAID DRIVE GEAR AND ROTATABLY DRIVE SAID OUTPUT SHAFT.