Cartridge with an exchangeable content package
OwnerWilhelm A. Kellerinventor
Life of this patent
Estimating the term…
Abstract
The cartridge comprises a liner which is fastened at its outlet end to an outlet assembly which in turn is attachable to the front piece of the cartridge and which is held at its inlet end thus, that the piston slides inside the liner package. At the inlet end the liner is either fastened to the piston or to a ring insertable into the inlet end of the cartridge. Such a liner package has a low volume and plastic waste to be disposed of whereas the cylinders and the front piece of the cartridge are re-usable, whilst all performances of a rigid cartridge can be maintained or surpassed.
Claims23
A cartridge for dispensing at least one component, comprising:
- a cartridge having a rigid cartridge wall
- a content package having a liner which has an outlet end and an inlet end disposed in said rigid cartridge wall, and
- a piston assembly having a piston body,
- wherein said liner is fastened at said outlet end to an outlet assembly,
- wherein said liner is fastened at said inlet end to a rear portion of said piston body such that said piston body is disposed inside said liner.
A cartridge system for dispensing a mix of components, comprising:
- a plurality of cartridges each containing a different component, wherein said cartridges have relative sizes which correspond to a predetermined ratio of said components in said mix;
- a content package disposed in each of said cartridges, each package having a liner which has an outlet end and an inlet end,
- a plurality of outlet assemblies each of which is attached to one of said liners at said outlet end for outputting said components,
- a front piece for receiving said plurality of outlet assemblies and providing means for mixing said components in said predetermined ratio,
- a plurality of piston assemblies corresponding to said plurality of cartridges, each piston assembly having a piston body,
- wherein, at said inlet end, each said liner is fastened to a rear portion of one of said piston bodies such that said piston body is disposed inside said liner.
Dependencies are inferred from the claim text.