| 主权项 |
1. A sealing member in a quick-disconnect coupler assembly, comprising:
a coupler having first and second coupler parts which are capable of being coupled together when the upstream part is under fluid pressure, lockable in a coupling position, said coupling halves comprising a male coupler and a female coupler, lockable in a coupling position; said male coupler and said female coupler couple in a typical linear axial action; said female coupler contains a sealing member acting as a check valve and biased and held in the closed position by internal upstream pressure in female coupler; said sealing member of said female coupler having a stop restricting and defining total displacement travel of said male coupler during insertion; said female coupler having a hollow cylindrical body located within the central fluid chamber which one annular surface provides a sealing surface for the said sealing member; said female coupler contains a said locking mechanism which is of typical prior-art origin and whose function is to lock the said male coupler and the said female coupler together in the fully engaged coupled position, where the said sealing valve is in its fully-opened position; a seal member extending circumferentially contained within the outer diameter of said male coupler, proving for a fluid seal between the outer diameter of the said male coupler and the inside diameter of the female coupler, to ensure that fluid does not escape the quick-disconnect coupler and is of typical prior-art origin and design; a body having an upstream end for receiving a fluid source and a downstream end for connecting downstream devices; said male coupler half contains a hollow cylindrical end whose radial size(s) correspond with the mating sizes of the said sealing members engaging surfaces of varying types and styles and geometric shapes; said male coupler hollow cylindrical downstream end is shaped as to provide a flat plane perpendicular to axial direction; a sealing member (check valve) with an approximate circular geometry is contained by proximity in a corresponding circular hollow tubular upstream female coupler chamber; wherein the sealing element is not physically attached to any other portion of the upstream or downstream body and is held in its relative location by surface contact between the sealing element and the relative surfaces of the upstream female coupler body; the sealing member is of the direct response valve style which is activated and held in the closed position by the internal upstream pressure within said internal chambers of said female coupler; the sealing member contains protrusions in the downstream direction whose physical orientation correspond with the said male coupler cylindrical end, in the radial direction, during insertion of the two parts; these protrusions interact with the said male coupler cylindrical end, during part insertion, which opens the sealing member; the said quick-disconnect assembly contains said female coupler orientated in the upstream direction and said male coupler is orientated in a relative downstream direction; upstream is considered the supply of fluid direction and hence the above mentioned sealing member must resist fluid flow and resultant fluid pressure from the upstream direction. |
