Abstract: A ink-refilled convection device for introducing ink into an ink cartridge is disclosed. The ink-refilled convection device comprises a convective refill unit, an ink container, and an opening hole. The convective refill unit has a base body at lower portion of the convective refill unit, a drain conduit disposed in the first cylindrical hole, a vent conduit disposed in the second cylindrical hole. The ink container has an inner cap disposed at opening of the ink container with a taper column detachably engaged with the taper cylindrical hole. Wherein said convective refill unit connected with the cap of the ink container, the convective refill unit of said vent conduit is passed through the opening hole with the first end of the vent conduit kept approaching to the bottom of the ink container and the second end of the vent conduit extended to exterior of the column body through the recess, between the column body and the second end of the drain conduit.

Abstract: An ink-refilled convection device for introducing ink into an ink cartridge mainly has an ink-refilled convection unit disposed at the top of taper column of the ink container. When the ink-refilled convection unit is inverted to insert into the ink tank, the drain conduit goes deep into the bottom of the ink tank for the ink flowing into the ink tank. The vent conduit has an end above the ink container and the other end at a predetermined level in the chamber to form a convective circulation between the drain conduit and the vent conduit. Once the ink flows downward in the drain conduit, it starts to fill in the cartridge automatically until the predetermined level is reached, and after that, the convective circulation stops immediately to complete the ink refilling.

Abstract: A simplified refilling assembly of DURABrite ink cartridge comprises an ink bottle connector, a pipe and an ink cartridge connector; the ink cartridge connector has a plug pipe to be connected with the refilling hole of the ink cartridge hermetically; the ink bottle connector is furnished with a L-shaped connector and a recovering cylinder, which are molded into one piece to be plugged into a bottle plug of the ink bottle; the ink cartridge and the ink bottle are connected each other by means of a refilling assembly; a syringe is plugged into the refilling hole of the ink cartridge; when the pull grip is pulled upward, the ink in the ink bottle will be drawn to flow into the ink chamber of the ink cartridge; then, the syringe is plugged into the recovering cylinder of the ink bottle connector so as to recover ink for re-use.

Abstract: An external ink supply and balancing system for inkjet printer, which mainly comprises a reflow system of each ink container of an inkjet printer be blocked and to have each ink container be connected to a respective external ink bottle through a respective L-shaped connector and flexible ink supply tube and also to be an air bag connected to an air discharge connector at each ink bottle through a flexible tube for collecting exhaust air so that when the inkjet printer runs an ink circulation flow, the ink bottles supply inks to the respective ink containers and guide exhaust air out of the ink containers to the air bag.

Abstract: A tiny air-pressure balance device between an ink cartridge and an ink bottle, in which the ink cartridge is connected with an ink tube extended to one side of the printer; every ink tube is connected with the outlet of the ink bottle; the upper part of the ink bottle is mounted with a balance device, in which a tiny air-pressure check valve is mounted so as to have a tiny air enter for balancing the pressure in the ink bottle upon the printer printing words or drawings, and to prevent the water in the ink bottle from volatilizing away.

Abstract: A tiny air-pressure balance device between an ink cartridge and an ink bottle, in which the ink cartridge is connected with an ink tube extended to one side of the printer; every ink tube is connected with the outlet of the ink bottle; the upper part of the ink bottle is mounted with a balance device, in which a tiny air-pressure check valve is mounted so as to have a tiny air enter for balancing the pressure in the ink bottle upon the printer printing words or drawings, and to prevent the water in the ink bottle from volatilizing away.

Abstract: An improved cap structure of a glue container, which has an injection tube extended out of the center of a threaded portion of the container; the injection tube includes a cylindrical surface for mounting dispensing tip and a tapered cylindrical surface; a guide shoulder is furnished between the cylindrical surface and the tapered cylindrical surface; one end of the tapered cylindrical surface can be stabbed through with a needle; the tapered cylindrical surface can be cut off from the guide shoulder with knife so as to facilitate mounting a dispensing tip having a needle pipe.

Abstract: An improved dispensing syringe for a fluid glue, which comprises a syringe stem, a syringe seat, a syringe cap, a guide sleeve and a sealing pad; the syringe seat has a conic cylindrical opening at one end, and a contact surface and a guide hole on the other end thereof; one end of the syringe stem has a bevel opening, being mounted in the center of the conic cylinder opening while the other end thereof is a flat opening, being set out of the syringe seat. There is a given length between the flat opening and the syringe seat. The syringe stem and the syringe seat are connected together by glue. The dispensing syringe is mounted to the conic cylinder on the container with a stinging through method so as to draw the glue to flow out.