Apparatus and method for sealing with a liquid sealant
View Patent ↗A device includes a first part having a co-molded first support, valve cover and elastic actuator, and a second part having an injection molded second support, valve seat, and variable-volume storage chamber pre-form. The pre-form is blow molded into a flexible pouch defining the variable-volume storage chamber. The one-way valve includes a semi-annular, curvilinear, relatively rigid valve seat defining axially-extending, opposing first marginal portions, and an axially-extending first mid-portion angularly extending between the opposing first marginal portions. A flexible valve member is superimposed on the valve seat and defines axially-extending, opposing second marginal portions fixedly secured on or adjacent to respective first marginal portions of the valve seat, and an axially-extending second mid-portion angularly extending between the opposing first marginal portions and superimposed onto the first mid-portion of the valve seat. The flexible valve cover and valve seat form a normally closed axially and angularly extending valve seam therebetween.
1. A method, comprising:
filling a device with a substance, the device including a first piece comprising a penetrable portion and a first surface and a second piece defining a chamber for containing substance therein and comprising a second surface, said first piece securedly attached to the second piece and at least a portion of the first surface in sealing engagement with at least a portion of the second surface to define a seal therebetween to seal the chamber from ambient atmosphere, the sealed chamber in fluid communication with the penetrable portion;
wherein the filling step includes
penetrating the penetrable portion with a filling or injection member;
introducing substance through the filling or injection member and into the chamber;
withdrawing the filling or injection member from the penetrable portion; and
subsequent to the withdrawing step, dispensing a liquid sealant from a resealing device including, or in fluid communication with, a source of the liquid sealant and onto the penetrable portion, so that liquid sealant dispensed from the resealing device contacts and overlies a resulting penetration aperture formed in the penetrable portion, and hermetically seals the penetration aperture.
2. A method as recited in claim 1 , wherein the liquid sealant is at ambient temperature when dispensed.
3. A method as recited in claim 1 , further comprising applying oxygen or other gas to the sealant to facilitate curing of the sealant.
4. A method as recited in claim 3 , wherein the oxygen or other gas is applied at a substantially predetermined temperature for curing the sealant.
5. A method as recited in claim 1 , wherein the dispensing step includes overlying the sealant in a recess defined by the penetrable portion.
6. A method as recited in claim 1 , wherein the sealant is a silicone.
7. A method as defined in claim 1 , wherein the sealed chamber is sterile and the introducing step includes aseptically introducing substance through (he filling or injection member and into the chamber.
8. A method as defined in claim 1 , wherein the dispensing step includes pumping liquid sealant with a pump out of the resealing device.
9. A method as defined in claim 1 , wherein the dispensing step includes dispensing a metered or measured volume or amount of liquid sealant.
10. A method as defined in claim 1 , wherein the resealing device comprises a dispensing port and the dispensing step includes dispensing the liquid sealant from the dispensing port.
11. A method as defined in claim 10 , further comprising aligning the dispensing port with the penetration aperture.
12. A method as defined in claim 1 , further comprising mounting the resealing device over the device.
13. A method as defined in claim 1 , wherein the penetrable portion contains a recess, and the dispensing step includes dispensing the liquid sealant into the recess.
14. A method as defined in claim 1 , wherein the penetrable portion is defined by a portion of the first piece made of an elastomeric material.
15. A method as defined in claim 1 , wherein the first piece is formed with a first material and the second piece is formed with a second material that is different than the first material.
16. A method as defined in claim 1 , wherein the device further includes a nozzle for dispensing substance.