A device for puncturing a pressurized container for relieving the pressure therein and for releasing the residual contents thereof into a drum of a type having an end wall with a surrounding protruding peripheral rim, said device comprising: a generally elongated housing member defining an elongated cavity with inner and outer surfaces and with openings at first and second ends thereof for receiving a pressurized container at said first end and further including an attachment means for securing said second end of said elongated housing member to said end wall of said drum for collection by said drum of contents expelled from said pressurized container through said second end; a puncturing member mounted within said elongated housing member generally parallel to said inner and outer surfaces of said elongated housing member, intermediate said first and second ends and a distance from said inner surface of said elongated housing member for piercing said pressurized container in said elongated cavity whereby gases and residual contents thereof are emptied into said drum through said opening at said second end; a force-applying member movably mounted on said elongated housing member for engaging said pressurized container positioned in said elongated cavity and forcing said pressurized container towards said second end of said elongated housing member and onto said puncturing member; wherein said force-applying member, comprises: a cap; a rack gear attached to said cap; a paw gear interconnected with said rack gear such that rotation of said paw gear causes vertical movement of said rack gear; and an activation wheel attached to said paw gear such that rotation of said activation wheel causes rotation of said paw gear wherein rotation of said activation wheel results in vertical movement of said cap, and downward movement of said cap causes said cap to engage said pressurized container positioned in said elongated cavity and to force said pressurized container towards said second end of said elongated housing member and onto said puncturing member. said device further including an auxiliary support means for extending from said elongated housing member to said protruding peripheral rim of said drum for stabilizing relative movement between said elongated housing member and said drum during operation of said device. a generally elongated housing member defining an elongated cavity with inner and outer surfaces and with openings at first and second ends thereof for receiving a pressurized container at said first end and further including an attachment means for securing said second end of said elongated housing member to said end wall of said drum for collection by said drum of contents expelled from said pressurized container through said second end; a puncturing member mounted within said elongated housing member generally parallel to said inner and outer surfaces of said elongated housing member, intermediate said first and second ends and a distance from said inner surface of said elongated housing member for piercing said pressurized container in said elongated cavity whereby gases and residual contents thereof are emptied into said drum through said opening at said second end; a force-applying member movably mounted on said elongated housing member for engaging said pressurized container positioned in said elongated cavity and forcing said pressurized container towards said second end of said elongated housing member and onto said puncturing member; wherein said force-applying member, comprises: a cap; a rack gear attached to said cap; a paw gear interconnected with said rack gear such that rotation of said paw gear causes vertical movement of said rack gear; and an activation wheel attached to said paw gear such that rotation of said activation wheel causes rotation of said paw gear wherein rotation of said activation wheel results in vertical movement of said cap, and downward movement of said cap causes said cap to engage said pressurized container positioned in said elongated cavity and to force said pressurized container towards said second end of said elongated housing member and onto said puncturing member. a cap; a rack gear attached to said cap; a paw gear interconnected with said rack gear such that rotation of said paw gear causes vertical movement of said rack gear; and an activation wheel attached to said paw gear such that rotation of said activation wheel causes rotation of said paw gear wherein rotation of said activation wheel results in vertical movement of said cap, and downward movement of said cap causes said cap to engage said pressurized container positioned in said elongated cavity and to force said pressurized container towards said second end of said elongated housing member and onto said puncturing member. said device further including an auxiliary support means for extending from said elongated housing member to said protruding peripheral rim of said drum for stabilizing relative movement between said elongated housing member and said drum during operation of said device.