초록 ▼

A pressure relief device is disclosed. The pressure relief device may take the form of a “butterfly” vent, including paired burst panels or blow-out portions that are configured to open in a manner similar to a butterfly flapping its wings. Upon opening, the paired burst panels may contact each othe

A pressure relief device is disclosed. The pressure relief device may take the form of a “butterfly” vent, including paired burst panels or blow-out portions that are configured to open in a manner similar to a butterfly flapping its wings. Upon opening, the paired burst panels may contact each other, thereby absorbing kinetic energy. The burst panels may be positioned within a frame or may be formed or cut from a single sheet. A cord may be provided between the burst panels to retain the burst panels and/or ensure that the burst panels open substantially simultaneously. The pressure relief device also may include an activation mechanism to control the opening of the burst panels, one or more hinge members, and/or a braking member.

대표청구항 ▼

1. A pressure relief device comprising: a first vent, the first vent comprising a first panel;a second vent, the second vent comprising a second panel; anda connecting member interposed between the first panel and second panel, the first panel and second panel configured to rotate relative to the co

1. A pressure relief device comprising: a first vent, the first vent comprising a first panel;a second vent, the second vent comprising a second panel; anda connecting member interposed between the first panel and second panel, the first panel and second panel configured to rotate relative to the connecting member; anda cord having a first end and a second end, the first end joined to the first panel and the second end joined to the second panel, wherein the cord is configured to join the first panel and second panel in tension;wherein the first panel is configured to open upon activation of the first vent;wherein the second panel is configured to open upon activation of the second vent; andwherein the first panel and second panel are configured to engage at least their outer ends upon opening. 2. The pressure relief device of claim 1, wherein upon activation of the first vent, the first panel is configured to pull on the cord and thereby trigger activation of the second vent. 3. The pressure relief device of claim 2, wherein the cord causes the first vent and second vent to activate substantially simultaneously. 4. The pressure relief device of claim 1, further comprising: at least one braking member attached to the cord. 5. The pressure relief device of claim 1, further comprising: a first activation mechanism configured to control a pressure at which the first vent activates; anda second activation mechanism configured to control a pressure at which the second vent activates. 6. The pressure relief device of claim 1, further comprising: a first hinge rotatably joining the first panel to the connecting member; anda second hinge rotatably joining the second panel to the connecting member. 7. The pressure relief device of claim 6, wherein the first hinge and the second hinge are configured to deform and thereby absorb kinetic energy upon activation of the first vent and second vent. 8. The pressure relief device of claim 1, wherein the first panel is domed and wherein the second panel is domed. 9. A pressure relief device, comprising: a frame having a central portion, wherein the central portion of the frame defines an eyelet;a cord having a first end and a second end;wherein the cord is passed through the eyelet;a first burst panel mounted within the frame, wherein the first burst panel is configured to rotate relative to the central portion upon opening; anda second burst panel mounted within the frame, wherein the second burst panel is configured to rotate relative to the central portion upon opening;wherein the first end of the cord is attached to the first panel; andwherein the second end of the cord is attached to the second panel;wherein the first burst panel and second burst panel are configured to activate and open upon experiencing a predetermined pressure differential; andwherein at least a portion of the first burst panel engages with at least a portion of the second burst panel upon activation. 10. The pressure relief device of claim 9, wherein the cord is configured to ensure that the first burst panel and second burst panel activate at substantially the same time. 11. The pressure relief device of claim 9, further comprising: a first hinge, wherein the first hinge joins the first burst panel to the central portion of the frame; anda second hinge, wherein the second hinge joins the second burst panel to the central portion of the frame. 12. A pressure relief device, comprising: a sheet;wherein the sheet includes a first line of weakness defining a first burst panel, a second line of weakness defining a second burst panel, and a central portion between the first burst panel and the second burst panel;a cord joining the first burst panel to the second burst panel;wherein the first burst panel is configured to activate and rotate relative to the central portion upon experiencing a predetermined pressure differential, wherein rotation of the first burst panel creates a first opening in the sheet;wherein the cord is configured to transmit a tensile force between the first burst panel and second burst panel upon activation of the first burst panel;wherein the second burst panel is configured to activate and rotate relative to the central portion upon experiencing a predetermined pressure differential, wherein rotation of the second burst panel creates a second opening in the sheet; andwherein at least a portion of the first burst panel is configured to contact at least a portion of the second burst panel upon activation of the first burst panel and second burst panel. 13. The pressure relief device of claim 12: wherein the first burst panel has four sides, wherein the first line of weakness is a cut defining three sides of the first burst panel, and wherein the fourth side of the first burst panel is a first line of bending joining the first burst panel to the central portion; andwherein the second burst panel has four sides, wherein the second line of weakness is a cut defining three sides of the second burst panel, and wherein the fourth side of the second burst panel is a second line of bending joining the second burst panel to the central portion. 14. The pressure relief device of claim 13, wherein the first line of bending is defined by a partial cut, and wherein the second line of bending is defined by a partial cut. 15. The pressure relief device of claim 12: wherein the first line of weakness is an arc-shaped cut, and wherein a first line of bending joins the first burst panel to the central portion; andwherein the second line of weakness is an arc-shaped cut, and wherein a second line of bending joins the second burst panel to the central portion. 16. The pressure relief device of claim 12, further comprising: a first hinge member engaged between the first burst panel and the central portion; anda second hinge member engaged between the second burst panel and the central portion.