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A main housing assembly has a back plate and a front casing which is hingedly secured to the back plate. A bracket on the backplate supports a liquid reservoir which includes a flexible bag carried by a fiber board box, the bag having a discharge tube clamped at one corner of the bag. A discharge no

A main housing assembly has a back plate and a front casing which is hingedly secured to the back plate. A bracket on the backplate supports a liquid reservoir which includes a flexible bag carried by a fiber board box, the bag having a discharge tube clamped at one corner of the bag. A discharge nozzle assembly is connected by one end to the discharge tube, the discharge nozzle assembly having a pair of ball check valves carried by the ends of a flexible tube. The lower ball check valve protrudes from the bottom of the housing when the liquid reservoir is mounted on the bracket and the nozzle assembly protrudes downwardly therefrom in front of the bracket. A depressible plunger carried by the casing is adapted to squeeze the flexible tube of the nozzle assembly so as to close the upper ball check valve and open the lower ball check valve permitting a metered amount of liquid to be discharged through the lower ball check valve. The method of forming the liquid reservoir includes enclosing the bag in the fiber board housing and then inverting the liquid reservoir assembly so as to insert the liquid through the discharge tube which protrudes through the housing. A cap is then placed on the end of the discharge nozzle so that the liquid reservoir assembly can be shipped.

대표청구항 ▼

A cartridge assembly for use within a liquid dispenser comprising: (a) a box-like fiberboard housing having a hole in its bottom portion; (b) a flexible bag within said housing; said bag having a corner and an opening provided at said corner; (c) liquid within said bag for being dispensed from said

A cartridge assembly for use within a liquid dispenser comprising: (a) a box-like fiberboard housing having a hole in its bottom portion; (b) a flexible bag within said housing; said bag having a corner and an opening provided at said corner; (c) liquid within said bag for being dispensed from said cartridge assembly; (d) a discharge tube having an intermediate portion and an inner portion protruding through said opening and received within said bag, said bag being gathered around said intermediate portion said tube having an outer end portion; (e) a compression clamp surrounding a portion of the gathered portion of said bag and said intermediate portion of said tube, the outer portion of said gathered portion extending below said clamp; (f) adhesive means for securing said outer portion of said gathered portion of said bag between the inner surface of said housing and said clamp, said outer end portion of said tube protruding out of said opening in said housing; and (g) a ball check valve extending through a hole in a screw cap and communicating with the interior of said tube, a flexible dispensing tube secured to said ball check valve, and a second ball check valve on the end of said dispensing tube, said first mentioned ball check valve being normally open and said second ball check valve being normally closed.