| 摘要 |
<p>With the use of the double or multiple insulated walls of the cylinders (2, 3) and others, the insulating layers (4 and 5) and of the void (6) of the parts of the lid (9 and 11), the insulating coating (10 and 12) of the void space (13), we may increase the heat insulating properties of the highly insulated cooking utensil, which are further enhanced with the use of the flexible heat insulating custom extension (24), which bears a projection (27) and several small protrusions (28), with the custom extension consisting of two metallic disks (37 and 38) with a void space (40) and the cover made of thin plastic (42 and 43), glasswool (44) and an elastic band (46) and the use of the empty cylinder of a height (47) and a diameter (48) which protects the steam pressure valve (15). The joints of the cylinders are made with two compact joints along their circumference or one compact joint and one or two gaskets.</p> |
