Patent ID: 7441495

Claim:
A particulate storage cartridge comprising: a case element defining a storage space for containing a particulate substance, said case element having an opening in communication with said storage space for the outflow of said particulate substance from said storage space and a detachable valved lid element said case element and said lid element being configured such that said lid element is removably attached to said case element so as to cover said opening such that said case element and said lid element form an enclosed chamber for containing said particulate substance, said lid element comprising a valve member having an outflow aperture and defining a flow path for the flow of particulate material out of said storage space, said valve member further comprising a plug element and a bias component, said plug element and said bias component being configured such that said plug element is displaceable between a closed position and an open position whereby when said plug element is in said closed position said plug closes off said outflow aperture whereby particulate material is unable to flow out of said enclosed storage space through said outflow aperture and when said plug element is in said open position particulate material is able to flow out of said storage space through said outflow aperture, said bias element biasing said plug element in said closed position and wherein said storage cartridge further comprises an orientation guide means.