Abstract:
An ink reservoir bag of flexible, plastic sheet material for an ink delivery system for an ink cartridge is constructed of two sheets of plastic material having peripheral edges bonded together to provide an ink chamber therebetween and has separate fill and exit ports opening into the chamber and respectively defined by a fill tube and an exit tube bonded to the bag between the peripheral edges thereof. Flexible tubing is connected to the exit port through a check valve interposed between the port and tubing, and a lure lock is interconnected with the fill tube to provide an injection sight for filling the bag. The bag is filled by connecting the tubing to a vacuum source, evacuating air from the bag and tubing, connecting the fill port to a source of ink and using the negative pressure to draw ink into the bag and tubing.
Abstract:
An aperture provided in a bottom wall of an ink cartridge is designed to break the surface tension of the ink as the ink proceeds toward an outlet port. For example, serrated edges, tapering conformations, cruciform dividing walls, different diameter regions in the outlet passage, etc. are all designed to prevent the formation of large bubbles or preclude the migration of air bubbles to the region of the outlet passage where the print needle of an associated printer extends.
Abstract:
A gas separation device has a peripheral flow-through frame with a sheet of gas separation filter media disposed across the frame and attached to the frame for filtering a gas stream passing through the filter media. As an aid in installing and removing the gas separation device from an installation, one advantageous embodiment has a handle centrally disposed of and attached to the filter media and projecting from one face of the filter media while another advantageous embodiment has two handles centrally disposed of and attached to the filter media and projecting from opposite faces of the filter media.
Abstract:
An ink jet cartridge comprising an outer housing and an inner ink chamber has adjacent housing and chamber wall portions, and a coupling member for communicating the ink chamber with an external source of ink has an inner end extending through an oversized opening in the housing wall portion and into threaded interengagement with an opening through the chamber wall portion. The outer end of the coupling is outside the housing wall portion for connection to a source of ink.
Abstract:
An ink tank cartridge (A) includes a housing (10) having a bottom wall (28) and a plurality of side walls (12, 14, 16, 18) forming a cavity (20). A divider wall (22) is positioned within the cavity to divide the cavity into first and second chambers (24, 26). An ink supply port (42) projects from the bottom wall of the housing. A porous member (40) is accommodated in the chamber having the ink supply port. The other chamber is partially filled with ink. The divider wall has an opening (30) allowing ink to pass from one of the chambers to the other chamber. A cover (50) having a fill hole (94) is secured to the housing.
Abstract:
An ink cartridge (10) for dispensing ink (IK) having a housing (12) with a cavity (22) therein for storing a quantity of ink, and a dispensing port (26) for delivering the ink to an output recordation device, such as a printer. The housing further having one or more additional ports (32, 34) extending through the housing in fluid communication with the cavity, and a self-sealing plug (16) received in one of the additional ports. The self-sealing plug being pierceable by a hollow instrument (H), such as a needle, to form a fluid passage therethrough, the self-sealing plug re-forming a fluid-tight seal in the port upon the removal of the hollow instrument.
Abstract:
An ink cartridge (10) for dispensing ink (IK) having a housing (12) with a cavity (22) therein for storing a quantity of ink, and a dispensing port (26) for delivering the ink to an output recordation device, such as a printer. The housing further has one or more additional ports (32, 34) extending through the housing in fluid communication with the cavity, and a check valve (16) received in one of the additional ports. The check valve is adapted to permit fluid flow in substantially one direction.
Abstract:
An ink tank cartridge has a housing with a bottom wall and first and a divider that separates a housing cavity into second chambers. An ink supply port with an opening extends through and projects from the bottom wall. A porous member is accommodated in one of the chambers and abuts the opening in the ink supply port. The other chamber is partially filled with ink to a pre-determined level. The predetermined level is approximately 2 millimeters above the opening in the bottom wall in a preferred arrangement. The predetermined level is used to prevent excessive flow of ink through the opening in the bottom wall. A groove is formed in the bottom wall to direct and transfer ink from the porous member to the ink supply port.