Abstract: An ink cartridge comprising a container body 3 housing an ink absorbing member 6? so as to absorb ink, a lid member 4, and a spacer 30 pressing the ink absorbing member 6? between the lid member 4 and the ink absorbing member 6?. It is possible to decrease the volume of the ink absorbing member 6? without changing structure in the vicinity of an ink supply port by using the same shape of a container body 3 and a lid member 4.

Abstract: An ink cartridge comprising a container body 3 housing an ink absorbing member 6? so as to absorb ink, a lid member 4, and a spacer 30 pressing the ink absorbing member 6? between the lid member 4 and the ink absorbing member 6?. It is possible to decrease the volume of the ink absorbing member 6? without changing structure in the vicinity of an ink supply port by using the same shape of a container body 3 and a lid member 4.

Abstract: An ink cartridge containing a container body 3 housing an ink absorbing member 6? so as to absorb ink, a lid member 4, and a spacer 30 pressing the ink absorbing member 6? between the lid member 4 and ink absorbing member 6?. It is possible to decrease the volume of the ink absorbing member 6? without changing structure in the vicinity of an ink supply port by using the same shape of a container body 3 and a lid member 4.

Abstract: An ink supply port is sealed with a seal material made up of two layers of at least a physical protective layer and an airtight hold layer and formed with slits in the physical protective layer. When ink cartridge is mounted, a tip of an ink introduction member breaks the seal material sealing the ink supply port along the slits made in the seal member, and air is released to the atmosphere without raising pressure of a space of packing. Then, the ink introduction member penetrates the packing.

Abstract: The present invention provides a method for making an external circulation fluid bed furnace which does not require a chamber for retaining heat transporting medium communicating with the down comer. According to the method of the present invention, said chamber is eliminated by properly determining the dimension of the down comer etc. According to the present invention, the ratio of the diameter of the down comer to the diameter of the riser so that the ratio (X) thereof falls in an area between two lines described as follows, in a Ws-X plane:Ws=12500X.sup.5 -12080X.sup.4 +4370X.sup.3 -600X.sup.2 +36XandWs=5800X.sup.4 +1600X.sup.3 -580X.sup.2 +44Xwherein, Ws is flow rate of solid heat transport medium in the riser at each unit area the cross section (kg/m.sup.2 sec); X is a ratio of the diameter of down comer (d) to the diameter of riser (D).

Abstract: An improved system for treating waste material in a molten state wherein the waste material in the form of finely pulverized combustible waste material including incombustible material, e.g., pulverized coal, dried sludge derived from sewerage or the like is burnt in a primary combustion furnace and then burnt in a secondary combustion furnace, the incombustible material is molten to form a flow of molten slag and the resultant molten slag is taken to the outside of the system is disclosed. Floatable dust in the combustion waste gas is collected and agglomerated in the atmosphere of a swirling flow having a high temperature enough to keep the incombustible material in a molten state, whereby a flow of molten slag is produced and then it is cooled so as to allow it to be discharged to the outside of the system. The molten slag may flow back by its own gravity weight to the combustion furnace against a counterflow of the waste gas.

Abstract: An improved system for treating waste material in a molten state wherein the waste material in the form of finely pulverized combustible waste material including incombustible material, e.g., pulverized coal, dried sludge derived from sewerage or the like is burnt in a primary combustion furnace and then burnt in a secondary combustion furnace, the incombustible material is molten to form a flow of molten slag and the resultant molten slag is taken to the outside of the system is disclosed. Floatable dust in the combustion waste gas is collected and agglomerated in the atmosphere of a swirling flow having a high temperature enough to keep the incombustible material in a molten state, whereby a flow of molten slag is produced and then it is cooled so as to allow it to be discharged to the outside of the system. The molten slag may flow back by its own gravity weight to the combustion furnace against a counterflow of the waste gas.