Claims
- 1. In a liquid containment and dispensing device having a rigid, generally cup-shaped outer shell with an open end, a chassis secured to the open end of the shell, the chassis having a pumping mechanism with a liquid inlet thereinto and a liquid outlet therefrom and a cap overlying the chassis, the chassis being positioned between the cap and the shell, the improvement wherein said device further comprises:a label, said label being adhesively joined to an exterior of the shell and an exterior of the cap and helping to permanently secure the cap, the chassis and the shell to one another.
- 2. In a liquid containment and dispensing device having a rigid, generally cup-shaped outer shell with an open end, a chassis secured to the open end of the shell, the chassis having a pumping mechanism with a liquid inlet thereinto and a liquid outlet therefrom, a flexible pouch having an open end and a closed end, the closed end being positioned within the shell and the open end being joined to the chassis in fluid communication with the pumping mechanism, a valve separating the flexible pouch into the pumping mechanism while preventing liquid flow from the pumping mechanism into the flexible pouch, to dispense liquid therefrom through the liquid outlet, the chassis having a top panel portion with an opening therein, the opening being in liquid communication with the pumping mechanism, the valve being a thin, flexible, rectangular film of a liquid impervious material overlying the opening in the top panel portion, the thin film being heat staked to the top panel portion so that a portion of the thin film is free to flex with respect to the top panel portion, the improvement wherein:the thin film is heat staked to the top panel portion only between ends of an opposed pair of sides of the thin film.
- 3. A liquid containment and dispensing device according to claim 2 wherein each of the opposed pair of sides of the thin film is shorter than each of another opposed pair of sides of the thin film.
- 4. In a liquid containment and dispensing device having a rigid, generally cup-shaped outer shell with an open end, a chassis formed from a heat-softenable polymeric material secured to the open end of the shell, a pumping mechanism having a liquid inlet thereinto and a liquid outlet therefrom, the chassis having a top panel portion, and a cap secured to the chassis, the improvement wherein:the chassis comprises a spaced apart pair of studs formed integrally therewith and extending outwardly therefrom; the cap is provided with a spaced apart pair of apertures, each of the apertures receiving one of the studs, a free end of each stud projecting through the aperture in which it is received; the cap being secured to the chassis by deforming the free end of each of the studs to enlarge it to create an interference between the free end and the aperture of the chassis in which it is received.
- 5. In an ink containment and dispensing device having a rigid, generally cup-shaped outer shell with an open end, a chassis secured to the open end of the shell, a pumping mechanism with an ink inlet thereinto and an ink outlet therefrom and a cap overlying the chassis, the chassis being positioned between the cap and the shell, the improvement wherein said device further comprises:a label, said label being adhesively joined to an exterior of the shell and an exterior of the cap and helping to permanently secure the cap, the chassis and the shell to one another.
- 6. In an ink containment and dispensing device having a rigid, generally cup-shaped outer shell with an open end, a chassis secured to the open end of the shell, the chassis having a pumping mechanism with an ink inlet thereinto and an ink outlet therefrom, a flexible pouch having an open end and a closed end, the closed end being positioned within the shell and the open end being joined to the chassis in liquid communication with the pumping mechanism, a check valve separating the flexible pouch from the pumping mechanism and permitting ink flow from the flexible pouch into the pumping mechanism while preventing ink flow from the pumping mechanism into the flexible pouch, to dispense ink therefrom through the ink outlet, the chassis having a top panel portion with an opening therein, the opening being in liquid communication with the pumping mechanism, the check valve being in the form of a thin, flexible, rectangular film of a liquid impervious material overlying the opening in the top panel portion, the thin film being heat staked to the top panel portion so that a portion of the thin film is free to flex with respect to the top panel portion, the improvement wherein:the thin film is heat staked to the top panel portion only between the ends of an opposed pair of sides of the thin film.
- 7. A liquid containment and dispensing device according to claim 6, wherein each of an opposed pair of sides of the thin film is shorter than each of another opposed pair of sides of the thin film.
- 8. In an ink containment and dispensing device having a rigid, generally cup-shaped outer shell with an open end, a chassis formed from a heat-softenable polymeric material secured to the open end of the shell, a pumping mechanism having an ink inlet thereinto and an ink outlet therefrom, the chassis having a top panel portion, and a cap secured to the chassis, the improvement wherein:the chassis comprises a spaced apart pair of studs formed integrally therewith and extending outwardly therefrom; the cap is provided with a spaced apart pair of apertures, each of the apertures receiving one of the studs, a free end of each stud projecting through the aperture in which it is received; the cap being secured to the chassis by deforming the free end of each of the studs to enlarge it to create an interference between the free end and the aperture of the chassis in which it is received.
- 9. In an ink containment and dispensing device having a rigid, generally cup-shaped outer shell with an open end, a chassis secured to the open end of the shell, the chassis having a pumping mechanism with an ink inlet thereinto and an ink outlet therefrom, a flexible ink containment pouch having an open end and a closed end, the closed end being positioned within the shell and the open end being joined to the chassis in liquid communication with the pumping mechanism, a check valve separating the flexible pouch from the pumping mechanism and permitting ink flow from the flexible pouch into the pumping mechanism into the flexible pouch, the shell being formed of a rigid polymeric material and having a generally rectangular cross-section with a firs pair of opposed sides and a second pair of opposed sides, the sides of the first pair being substantially longer than the sides of the second pair, the improvement wherein:each of the sides of the first pair is outwardly bowed.
- 10. In an ink containment and dispensing device according to claim 9, wherein the chassis has a perimetrical wall, the further improvement wherein:the perimetrical wall fits snugly within the open end of the shell, one of the perimetrical wall and the open end of the shell having at least one radially outwardly projecting bead, the other of the open end of the chassis and the perimetrical wall having at least one radially inwardly projecting recess, the at least one bead being received in the at least one recess chassis in a snap fit.
Parent Case Info
This is a division of application Ser. No. 08/429,987 filed Apr. 27, 1995 now U.S. Pat. No. 5,784,087.
US Referenced Citations (5)
Foreign Referenced Citations (7)
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Non-Patent Literature Citations (1)
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