BigPatents India

An inhalation apparatus for dispensing a product characterized in that a housing, an end cap seated axially slidable relative to the housing and a collar in one or other of the end cap, or housing, said housing having a portion to receive a pressurized dispensing container and being connected to a mouthpiece, and duct means communicating with the container receiving portion for conveyance of product towards the mouthpiece; said end cap having a portion for engaging a pressurized dispensing container; said collar having an inwardly directed rim one of said end cap and said housing including an outwardly directed flange which fits within said rim; said end cap being movable from a first position in which said rim and flange have an axial overlap and there is no or a minimal flow of air through said housing to a second position in which there is a maximum flow of air, the air flow being created by a user applying suction to the mouthpiece, wherein the collar is slidably moveable relative to its seat in the end cap or housing on a first actuation of the inhalation apparatus to axially position the collar relative to the end cap or housing to accommodate variations in the axial length of the valve stem of a pressurized dispensing container received, in use, in the housing.