Valve mounting assembly with slit misalignment prevention feature
A mounting system is provided for mounting a valve for accommodating the flow of fluent a substance from a supply of the fluent substance wherein the valve includes a peripheral attachment portion, an intermediate portion extending from the peripheral attachment portion, and a flexible, resilient head that extends from the intermediate portion and that has (a) a first side, (b) a second side, (c) at least one self-sealing slit through the head, (d) a laterally marginal portion adjacent the intermediate portion, and (e) confronting, openable portions along the slit to define an initially closed orifice. The mounting system includes a retention structure for engaging holding the valve and includes an abutment structure. The abutment structure is adapted to be disposed adjacent the valve intermediate portion so that the abutment structure can be engaged by the valve head first side at the laterally marginal portion of the valve head to limit movement of the laterally margin portion of the valve head in one direction.
1. A mounting system for mounting a valve for accommodating flow of a substance from a supply of the substance, wherein said valve includes:
(1) a peripheral attachment portion;
(2) a flexible, resilient, intermediate portion extending from said peripheral attachment portion; and
(3) a flexible, resilient head that extends from said intermediate portion, and that has (a) a first side, (b) a second side, (c) at least two self-sealing slits through said head, (d) a laterally marginal portion adjacent said intermediate portion, and (e) at least three confronting, openable portions along said slits to define an initially closed orifice wherein said valve head openable portions can move to an open configuration, the head being thicker in transverse cross section than the intermediate portion;
said mounting system comprising:
(A) a retention structure to engage and hold said valve peripheral attachment portion;
(B) an annular flange located to extend over at least a portion of said valve intermediate portion adjacent said laterally marginal portion of the flexible resilient head;
a unitary housing defining said annular flame and at least part of said retention structure, said housing defines a through passage, and said valve is initially separate from, but subsequently attachable to, said housing across said through passage; and
wherein said flow of said substance from said supply is via a probe that selectively penetrates said valve, and said annular flange includes a probe directing surface sloped toward said valve head as said surface extends inward radially.
2. The system in accordance with claim 1 , wherein said retention structure further includes a retainer ring in snap-fit engagement with said housing to clamp said valve between said retainer ring and a portion of said housing.
3. The system in accordance with claim 1 , wherein said annular flange is sized to extend over all of said valve intermediate portion and located to be engaged by said valve head first side at said laterally marginal portion of said valve head to limit movement of said laterally marginal portion of said valve head in said second direction.
4. The system in accordance with claim 1 , in which
said annular flange extends around said through passage;
said annular flange has an arcuate configuration in transverse cross section; and
said annular flange has a distal end defining a frustoconical abutment surface for being engaged by said valve first side at said laterally marginal portion of said valve head.
5. The system in accordance with claim 4 , in which said frustoconical abutment surface of said annular flange is positioned to confront said laterally marginal portion of said valve head first side at a location adjacent an end of said slit.