Patent ID: 8657780

Claim:
An application device for applying a dispensable material, said application device having a closed state and an open state and comprising: a receptacle having a cavity for receiving a material; a collar fitted onto an end portion of said receptacle; an elastic part made of an elastic material and having a through channel engaging said cavity; a holder comprising a support for receiving a dispensing means fluidly connected with said through channel; a removable cap supported on a peripheral portion of said holder when the application device is in said closed state, said cap, when the application device is in the closed state, compressing said peripheral portion of said holder at least partially, thereby compressing said elastic part for effecting a pinch seal sealing said through channel; and a cap end portion provided on said cap, said cap end portion partially fitting into said collar, said collar thereby enclosing said cap end portion from outside so as to avoid leakage of said pinch seal; wherein said pinch seal is released when said cap is removed, thereby allowing delivery of material stored within said cavity through said through channel to said dispensing means; wherein said through channel of said elastic part further comprises an internal surface having a coating made of a material selected from the group consisting of parylene and PTFE, thereby preventing sticking of said internal surface and interaction with said material received within said cavity; and further wherein said collar is made of a plastic material more stable than the material from which said cap is made, thereby preventing a leakage of said pinch seal, even in case said cap should be prone to creeping during long-term storage.