Containing and dispensing device for flowable material having relatively rigid and deformable material containment portions
OwnerPaul D. Evezichinventor
Life of this patent
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Abstract
A device is disclosed for containing and dispensing flowable materials contained in a material handling unit which is located at least in part within an outer container. The material handling unit includes a first, relatively rigid portion having a nozzle affixed to one end thereof and a readily reshapable bladder affixed to the other end thereof, with the nozzle having a one-way check valve permitting ejection of the contents therefrom. The outer container admits air into the space between the containers to thereby cause selective expellation of the contents of the material handling unit without direct manual contact by a user with the device.
Claims17
A device for containing and repeatedly dispensing a predetermined material comprising:
- a deformable material containment portion having an open end and a volume for material containment;
- a second material containment portion which is relatively rigid relative to said deformable material containment portion, said second material containment portion having an engagable portion at one end thereof and a material outlet at another end thereof, a material containment volume being defined between said ends, said open end of said deformable material containment portion being connected to said one end of said second material containment portion adjacent to said connecting means thus together defining an initial containment volume for material to be dispensed;
- and
- pressurizing means including wall means for defining a chamber for receiving and housing said deformable material containment portion and having connecting means for engaging said engagable portion of said second material containment portion so that when engaged said pressurizing means and said second material containment portion comprise an outer body of said device,
- said chamber having a fluid inlet for enabling selected flow of fluid from the exterior of said device to said chamber of said pressurizing means between said wall means and said deformable material containment portion so that negative pressure in said chamber is substantially avoided and dispensing of the material from said device is caused by deformation of said deformable material containment portion and movement of said deformable material containment portion into said second material containment portion.
A device for containing and repeatedly dispensing a predetermined material comprising:
- material handling means for containing and enabling dispensing of said predetermined material, said material handling means including first and second portions connected to each other adjacent to open and sections thereof, said open end sections each having a substantially similar configuration, with said first portion having a volume for containment of a volume of the material and having a wall defining said volume that is relatively rigid relative to a material containment volume defining wall of said second portion, said wall of said second portion being readily reshapable and movable into said volume of said first portion as a predetermined volume of said material is dispensed, said first portion having an outlet opening therein with first flow control means positioned adjacent thereto oriented to allow dispensing of said predetermined material therethrough but substantially precluding passage of matter into said material handling means through said outlet opening;
- containment means forming at least in part a chamber which receives said second portion of said material handling means, said first portion being releasably engagable with said containment means adjacent to said open and section thereof;
- and
- input means connected for selective flow of matter from the exterior of said containment means to a volume in said chamber defined between said containment means and said second portion of said material handling means so that negative pressure is substantially avoided in said volume and said second portion is deformed to effect dispensing of said material.
A unit for containing flowable material, said unit being receivable by containment means for containing a part of said unit and including engaging means adjacent to one end thereof for engaging said unit and inlet means for allowing passage therethrough of matter from the exterior thereof to a volume defined within the containment means to substantially avoid negative pressure in said volume and allow repeated dispensing of the flowable material from said unit, said unit comprising:
- a first portion at least in part defined by a wall and having outlet means at one end thereof for allowing passage therethrough of the material and engagable means at an opposite end thereof for engagement by the engaging means of the containment means, said first portion having a volume defined thereby for material containment;
- and
- a second portion having a volume at least in part defined by a wall for initial material containment, said second portion being connected to said first portion adjacent to said opposite end thereof and being readily deformable and movable into said volume of said first portion as a predetermined volume of said material is dispensed, said wall of said first portion being formed so that it is relatively rigid relative to said wall of said second portion.
Dependencies are inferred from the claim text.