Hose construction, coupling arrangement therefor and method of making the same

Claim 1

In a coupling arrangement for conveying fluid therethrough and having a filter unit disposed therein to filter the fluid flow through said coupling arrangement, the improvement wherein said coupling arrangement is a quick connect-disconnect coupling arrangement that comprises a first tubular coupling member having opposed open ends, a second tubular coupling member having opposed open ends one of which is telescopically disposed in one of said ends of said first coupling member, a staple-like fastening member securing said one ends of said coupling members together in the telescoping relation thereof, said filter unit having means that is held between said one ends of said coupling members when said one ends are in said secured telescoping relation thereof whereby said filter unit is secured in said coupling arrangement by said means thereof, and an annular flexible sealing member carried by said coupling arrangement and being in a compressed relation therein to provide a loading force on said filter unit and on said staple-like member, said means of said filter unit comprising an outwardly directed annular flange, said filter unit comprising a cylindrical member having opposed ends, said annular flange being located at one of said ends of said cylindrical member, said one end of said first coupling member having an internal annular shoulder means, said one end of said second coupling member having an annular shoulder means, said annular flange of said filter unit being held in sandwiched relation between said shoulder means when said one ends are in said secured telescoping relation, one of said shoulder means carries said annular flexible sealing member in said compressed relation between said one shoulder means and said annular flange of said filter unit when said one ends are in said secured telescoping relation.