초록 ▼

A fluid pressure vessel includes an exterior composite structural shell formed with a cylindrical sidewall and first and second dome-shaped end sections with two axially aligned openings in the end sections. An interior fluid impermeable liner is disposed in the shell to fit against the inside surfa

A fluid pressure vessel includes an exterior composite structural shell formed with a cylindrical sidewall and first and second dome-shaped end sections with two axially aligned openings in the end sections. An interior fluid impermeable liner is disposed in the shell to fit against the inside surface thereof, and includes two openings, each aligned with and adjacent to a respective one of the openings in the shell. A pair of end bosses are each disposed in respective adjacent openings of the shell and liner. The improvement of the invention involves forming the bosses so that each includes a cylindrical neck portion, an annular collar extending radially outwardly from the neck portion, a central hollow or bore extending axially through the neck portion, and an annular groove formed in the bore to include downwardly and inwardly sloping shoulders on one side of the groove. The perimeters of the openings in the liner are each formed with a first radially inwardly projecting section for overlying the top of the collar of a respective boss, and a second section projecting from an underside of the first section radially inwardly, for underlying the bottom of the collar of a respective boss, and upwardly into the bore, over the shoulder, to the groove.

대표청구항 ▼

A pressure vessel for holding fluids comprising an outer shell made of a substantially rigid, mechanically strong material, and having at least one oblate end section with an opening therein, boss means having a neck portion for fitting in the opening in the outer shell and a flange portion extendin

A pressure vessel for holding fluids comprising an outer shell made of a substantially rigid, mechanically strong material, and having at least one oblate end section with an opening therein, boss means having a neck portion for fitting in the opening in the outer shell and a flange portion extending outwardly from one end of the neck portion and having an upper surface, and a lower, radially convex surface, the boss means having a generally cylindrical hollow substantially aligned with the opening in the outer shell, for receiving an attachment mechanism and including a groove formed therein extending circumferentially about the hollow, above the flange portion, said groove including a radially inwardly, downwardly sloping shoulder, an inner, generally fluid impervious liner disposed within the outer shell against the inside surface thereof, and having at least one end section with an opening aligned with the opening of the outer shell, said inner liner being formed with a dual-layer lip circumscribing the opening in the liner, the dual-layer lip having an upper lip segment and a lower lip segment longer than said upper lip segment which terminates in an annular bead, with an annular recess therebetween for receiving and holding therein the flange portion of the boss means, the upper lip segment being held between the inside surface of the outer shell and the upper surface of the flange portion of the boss means, and the lower lip segment extending radially inwardly under the lower surface of the flange portion of the boss means and then upwardly into the hollow of the boss means, along the interior wall of said hollow, until the annular bead fits in the groove of the hollow, and wherein said hollow includes a first portion having a first diameter for receiving the lower lip segment, and an inlet portion having a diameter greater than the first diameter for receiving an attachment mechanism, and wherein said groove is formed in the hollow between the first portion and the inlet portion such that when the bead is fitted into the groove, an attachment mechanism received in the inlet portion contacts the lower lip segment at the bead to pin the lower segment against the sloping shoulder of the groove.