PRESSURE VESSEL BOSS AND LINER INTERFACE

• Main Authors: TILLER, DALE B, NEWHOUSE, NORMAN L
• Format: Patent
• Language: English; French
• Published: 15.07.2010
• Subjects: BLASTING; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED,LIQUEFIED, OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; HEATING; LIGHTING; MECHANICAL ENGINEERING; STORING OF DISTRIBUTING GASES OR LIQUIDS; VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED ORSOLIDIFIED GASES; WEAPONS

A boss (16A, 16B) for a pressure vessel (10) has a flange (3OA, 30B). The flange (3OA, 30B) includes an interior keyway (44) having an inner sidewall (50) and a plurality of bores (48) disposed on the inner sidewall (50). A pressure vessel (10) includes a main body section (12) and an end section (14). The end section (14) includes a boss (16A, 16B) and the boss (16A, 16B) includes a flange (3OA, 30B). The flange (3OA, 30B) includes an interior keyway (44) having an inner sidewall (50) and a plurality of bores (48) disposed on the inner sidewall (50). In another aspect, a pressure vessel (10) includes an outer shell (18), an inner liner (20) and a boss (16A) including a flange (30A) with an exterior side (62) and an interior side (60). The liner (20) is mechanically integrated with the flange (30A) via a plurality of anchors (49), each anchor (49) contacting the flange (30A) only on the interior side (60). A method of forming a pressure vessel (10) includes providing a boss (16A, 16b) having a flange (3OA, 30B). The flange (3OA, 30B) has an interior keyway (44) having an inner sidewall (50) and a plurality of bores (48) disposed on the inner sidewall (50). The method comprises allowing a fluid polymer material to flow into the interior keyway (44) and into the plurality of bores (48).