Ceiling-type automatic fire extinguisher

Claim 1

A CEILING-TYPE AUTOMATIC FIXED EXTINGUISHER ADAPTED TO CONTAIN A FRANGIBLE, FLUID-CONTAINING GRENADE AND TO BE MOUNTED IN AN OPENING IN A CEILING COMPRISING, IN COMBINATION: (A) A FUNNEL-LIKE GRENADE-CONTAINING BODY HAVING A DOWNWARD SPOUT, (B)MEANS AT THE SPOUT ADAPTED TO HOLD THE BODY ABOVE THE CEILING OPENING WITH THE SPOUT BOTTOM BEING SUBSTANTIALLY AT THE CEILING OPENING, INCLUDING A WASHERSHAPED FLANGE ABOUT THE SPOUT ADAPTED TO REST UPON THE UPPER SURFACE OF THE CEILING ABOUT THE OPENING, (C) A CUP-LIKE NOZZLE HAVING AN ARRAY OF ORIFICES ABOUT ITS BASE AFFIXED TO THE BOTTOM OF THE SPOUT, (D) A NORMALLY TENSED STRIKER MEANS WITHIN THE NOZZLE ADAPTED TO BE RELEASED AND TO BE PROJECTED UPWARDLY AND THROUGH THE SPOUT TO STRIKE AND BREAK A GRENADE WITHIN THE BODY, AND (E) A RELEASING MEANS ADAPTED TO RELEASE SAID STRIKER MEANS HAVING A THERMALLY SENSITIVE RELEASING FUSE BELOW THE NOZZLE ADAPTED TO RELEASE WHENEVER SAID FUSE IS HEATED TO A SELECTED TEMPERATURE.