TH69318B - Metal container lid that is responsible for releasing internal pressure. - Google Patents

Abstract

DC60 (20/02/57) A metal container closure comprising a shell of thin metal sheets having a circular top panel wall 7 and a circumferential wall 9, and synthetic resin liners arranged in the shell, the circumferential wall 9 having a spiral formation region and an annular groove 17 positioned at the upper end of the spiral formation region, wherein a pressure-releasing line A extending in the circumferential direction is arranged in the circumferential wall 9 above the annular groove 17, and an annular ridge 30 is arranged so as to pass between the pressure-releasing line A and the annular groove 17. The metal container closure will efficiently release gas when the pressure in the container is increased and will effectively prevent the circumferential wall from being deformed at the part where the pressure-releasing line A is formed when it is seam-wrapped to the neck and mouth of the container. Metal container closure It consists of a shell of thin metal sheets having a circular top panel wall 7 and a circumferential wall 9 and synthetic resin lined sheets arranged in the shell, the circumferential wall 9 having a spiral formation region and an annular groove 17 positioned at the upper end of the spiral formation region, wherein a pressure release line A extending in the circumferential direction is arranged in the circumferential wall 9 above the annular groove 17, and an annular ridge 30 is arranged so as to pass between the pressure release line A and the annular groove 17. The metal container closure will effectively release gas when the pressure in the container is increased and will effectively prevent the circumferential wall from being deformed at the part where the pressure release line A is formed when it is seam-wrapped to the neck and mouth of the container.

Claims (2)

Disclaimer (all) which will not appear on the advertisement page. : ------ 23/04/2018 ------ (OCR) Page 1 of 1 page. 1. a metal container lid (1) consisting of a shell (3) of a thin sheet of metal with a circular top panel wall (7) and a cylindrical surrounding wall (9) hanging down from the edge along The perimeter of the top panel wall (7), synthetic resin lining (5) arranged in the shell (3), the surrounding wall (9) of the shell with the area Forms a helix (15) and an annular groove (17) positioned at the upper end of the thread-forming region (15) and internal pressure release (A) including slits (20). That extends in the circumferential direction They are arranged in the surrounding wall (9) over the annular groove (17), which is characterized by at least one line. Flexible (60) protrusions in an axial direction or over an incline relative to an axial direction Formed in the area where the internal pressure release line (A) is formed. 2. The metal container lids according to claim 1, the flexible brewing line (60), are placed at both ends. Two of the internal pressure release lines (A) in circumferential direction, pairs of flexible lines (60) protruding slopes. Tilted in such a way that they approach each other or separate from each other from bottom to top. At an angle of inclination in the range of 10 to 45 degrees relative to the axial direction. ------------ 1. Metal container cover (1) consisting of a shell (3) of a thin metal sheet. With a circular top panel wall (7) and a cylindrical surrounding wall (9) hanging down from the edge along the line. The perimeter of the top panel wall (7) and the synthetic resin lining (5) arranged in the shell (3), the surrounding wall (9) of the shell containing the area The spiral (15) and annular groove (17) are positioned at the upper end of the formation area. A spiral (15) and an internal pressure drop (A), as well as a slit (20) protruding in the circumferential direction. They are arranged in the surrounding wall (9) over the annular groove (17), which is characterized by at least one line. Flexible (60) protrusions in an axial direction or over an incline relative to an axial direction Formed in areas where the internal pressure release line (A) is formed