Toothbrush having a removable brush head

Claim 1

A TOOTHBRUSH COMPRISING A HOLLOW HANDLE, A BRUSH HEAD HOLDING DEVICE FIXED TO ONE END OF THE HANDLE, SAID BRUSH HEAD HOLDING DEVICE HAVING AN END WALL FIXED TO SAID ONE END OF THE HANDLE, A BASE PLATE EXTENDING AXIALLY FORWARDLY OF THE HANDLE FROM ONE EDGE OF THE END WALL, A FLANGE AT THE OUTER END OF THE BASE PLATE HAVING A REARWARDLY EXTENDING PROJECTION THEREON, AND A TONGUE EXTENDING FORWARDLY FROM THE END WALL GENERALLY PARALLEL TO THE BASE PLATE AND HAVING A FIXED END PORTION EXTENDING REARWARDLY THROUGH AN OPENING IN SAID END WALL AND INTO THE HANDLE, THE TONGUE BEING SECURED TO PORTIONS OF SAID END WALL SURROUNDING ITS OPENING FOR FIXING THE TONGUE AGAINST AXIAL MOVEMENT AND FOR SEALING THE HANDLE TO PREVENT BACTERIAL GROWTH THEREIN, AND A SEPARATE BRUSH HEAD COMPRISING A BASE SEATED ON THE BASE PLATE AND AHVING A LONGITUDINALLY EXTENDING SOCKET RECEIVING THE TONGUE, THE BASE HAVING ONE END ENGAGING THE END WALL OF THE HOLDING DEVICE AND ITS OPPOSITE END BEING RECESSED TO RECEIVE THE PROJECTION ON THE FLANGE, SAID BASE PLATE OF THE HOLDING DEVICE BEING FLEXIBLE FOR BENDING THE BASE PLATE AWAY FROM THE TONGUE TO PERMIT THE BRUSH HEAD TO BE INSERTED INTO AND REMOVED FROM THE HOLDING DEVICE.