Unit for dispensing liquid from a frangible ampoule

Claim 2

A unit for dispensing liquid, said unit comprising a onepiece body made of non-porous flexible material capable of retaining its shape, said body including an elongated blister having a top, sides, ends and an open bottom, a frangible ampoule filled with liquid and housed within said blister, a sheet of non-porous material bonded to said body and covering the bottom of the blister to retain the ampoule therein, said body having means located outwardly of one end of said blister and defining a chamber having an open bottom, a pad of porous material covering the bottom of said chamber, and a passage establishing communication between said blister and said chamber whereby, when the sides of said blister are squeezed inwardly to break said ampoule, the liquid therein may flow out of said blister and through said passage into said chamber from where the liquid may be dispensed through said pad.

Claim 3

A unit as defined in claim 1 in which a tongue is formed integrally with said blister and projects outwardly from said one end of the blister adjacent the bottom thereof, said means comprising a second blister formed in said tongue and defining said chamber, and said porous material being bonded to the bottom of said tongue.

Claim 4

A unit as defined in claim 2 in which said passage comprises a downwardly opening channel formed in said one end of said first blister and leading from said first blister to said second blister.

Claim 5

A unit as defined in claim 2 in which a peripheral flange is formed integrally with and projects outwardly from the sides and the opposite end of said first blister adjacent the bottom thereof, said non-porous sheet being bonded to said flange, the bottom of said flange and the bottom of said tongue initially lying in the same plane, and means defining a hinge adjacent said one end of said first blister to enable said tongue to be flexed to a position in which the bottom of said tongue is inclined relative to the bottom of said flange.

Claim 6

A unit as defined in claim 4 in which said hinge is defined by a weakened section formed in the material of said body adjacent said one end of said first blister.

Claim 7

A unit for dispensing liquid, said unit comprising a one-piece body made of a non-porous flexible material capable of retaining its shape, said body including an elongated first blister having a top, sides, first and second ends and an open bottom, a frangible ampoule filled with liquid and housed within said first blister, a peripheral flange formed integrally with and projecting outwardly from the sides and said first end of said first blister adjacent the bottom thereof, a sheet of non-porous material bonded to said flange and covering the bottom of said first Blister to retain said ampoule therein, a tongue projecting outwardly from the second end of said first blister adjacent the bottom thereof, said tongue having a bottom which initially lies in the same plane as the bottom of said flange, means defining a hinge adjacent said second end of said first blister to enable said tongue to be flexed to a position in which the bottom of said tongue is inclined relative to the bottom of said flange, a second blister formed in said tongue and having an open bottom, a pad of porous material bonded to the bottom of said tongue and covering the bottom of said second blister, and a passage formed in the second end of said first blister and establishing communication between said first and second blisters whereby, when the sides of said first blister are squeezed inwardly to break said ampoule, the liquid therein may flow out of said first blister and through said passage into said second blister from where the liquid may be dispensed through said pad.

Claim 8

A unit for dispensing liquid, said unit comprising a one-piece body made of a non-porous flexible material capable of retaining its shape, said body including an elongated first blister having a top, sides, first and second ends and an open bottom, a frangible ampoule filled with liquid and housed within said first blister, a peripheral flange formed integrally with and projecting outwardly from the sides and said first end of said first blister adjacent the bottom thereof, a sheet of non-porous material bonded to said flange and covering the bottom of said first Blister to retain said ampoule therein, a tongue projecting outwardly from the second end of said first blister adjacent the bottom thereof, said tongue having a bottom which initially lies in the same plane as the bottom of said flange, means defining a hinge adjacent said second end of said first blister to enable said tongue to be flexed to a position in which the bottom of said tongue is inclined relative to the bottom of said flange, a second blister formed in said tongue and having an open bottom, a pad of porous material bonded to the bottom of said tongue and covering the bottom of said second blister, and a passage formed in the second end of said first blister and establishing communication between said first and second blisters whereby, when the sides of said first blister are squeezed inwardly to break said ampoule, the liquid therein may flow out of said first blister and through said passage into said second blister from where the liquid may be dispensed through said pad.