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US 2007/0164046 A1Published application
Beverage dispenser
AssigneeIMI Vision Limited
InventorRichard Nighy
Life of this patent
Estimating the term…
Abstract
A disposable pump cartridge for use in conjunction with a pump driver characterised in the disposable pump unit containing a pair of piston pumps and inlet and outlet valves positioned at one end of each piston. The piston pump has a pair of pistons arranged for reciprocal motion and which are retained by a retaining mean adjacent the inlet and outlet valves during transit
Claims14
A disposable pump cartridge for use with a non disposable pump drive, the cartridge comprising:
- two pump barrels each having a piston therein, said pistons having means for connecting them to a drive means for driving the pistons of the disposable pump cartridge,
- a fluid inlet for connection to a source of fluid to be pumped, said fluid inlet leading to two inlet valves each leading into one of the two barrels, and
- two outlet valves each leading from one of said two barrels to a pump outlet.
Dependencies are inferred from the claim text.