Aerosol valve construction

Claim 1

IN AN AEROSOL VALVE CONSTRUCTION, IN COMBINATION: (A) A TUBULAR, MOLDED PLASTIC VALVE HOUSING ADAPTED TO BE MOUNTED IN THE UPPER PORTION OF A PRESSURIZED AEROSOL CONTAINER, SAID VALVE HOUSING HAVING AN ANNULAR END PART ARRANGED TO BE NORMALLY DISPOSED IN THE GAS AREA OF THE CONTAINER, AND HAVING A PASSAGE THROUGH IT FOR AEROSOL SUBSTANCE, (B) VALVE MEANS CONNECTED WITH THE VALVE HOUSING, FOR CONTROLLING THE FLOW OF AEROSOL SUBSTANCE THROUGH THE PASAGE THEREOF, (C) A TUBULAR PART TIGHTLY ENGAGED WITH THE ANNULAR END OF THE VALVE HOUSING, SAID PART HAVING A PASSAGE THROUGH WHICH THE AEROSOL SUBSTANCE PASSES AS IT FLOWS THROUGH THE VALVE HOUSING, (D) SAID ANNULAR END PART OF THE VALVE HOUSING AND TUBULAR PART HAVING A COMMON CONNECTION CONSTITUTED OF CO-ENGAGING ANNULAR SURFACES, ONE OF SAID PARTS HAVING A FINE GROOVE OF COMMENSURATE WIDTH AND DEPTH IN THE ANNULAR SURFACE THEREOF, SAID GROOVE BEING DIRECTED AT THE SAID PASSAGE FOR AEROSOL SUBSTANCE IN THE VALVE HOUSING AND PROVIDING A BY-PASS ESCAPE PASSAGE FOR GAS THROUGH THE CONNECTION FORMED BY THE ANNUAL SURFACES WHEREBY SUCH GAS AS A FINE JET IMPINGES ON AND MIXES WITH THE AEROSOL SUBSTANCE PASSING THROUGH THE VALVE HOUSING.