Patent US1997237A successfully refreshed from Google Patents.
Patent EP0100151A2 successfully refreshed from Google Patents.
EP0100151A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Pressurized dispensing pouch
Assignee: Grow Group Inc
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Filing: 1983-06-29
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Granted: —
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Expires: 2003-06-29
Abstract
Abstract @ A product dispensing means is disclosed comprised of a gas generating piston action pouch (25), formed in one embodiment from an elongated flexible plastic tubular member having one end portion (28) folded inwardly on the other portion (26) to integrally form an inner tube within an outer tube and outwardly slidable relative thereto. Both ends of the tubular member are sealed thus providing a sealed interstitial cavity (35, 36), between the two portions and a product receptacle within the folded portion. Successive gas generating means (37,38 39, 40) are located in said cavity and operatively connected between said portions (26, 28) to generate successive additional quantities of gas as said inner tube (28) moves outwardly from said outer tube (26) to dispense product from said receptacle under relatively constant pressure or any variation or increase or decrease of pressure if shelf life performance dictates specific pressure variances. The pouch (25) itself can be a self-contained product dispenser or can be utilized as an insert component in another container.
Inventors
- 👤 Benno E. Liebermann
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-08 05:32
CPC Classifications
B; B65; B65D; B65D83/00; B65D83/14; B65D83/60; B65D83/62; B65D83/625
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
96 words
An elongated tubular member sealed at a first end and at an intermediate location along its length having an inwardly folded flexible portion extending into the outer portion defined by said first end and said intermediate point, with a second sealed end terminating short of said first end to provide a fluid tight inner chamber between said portions and a product receptacle within said folded portion and pressure generating means disposed in said inner chamber for progressively moving said second sealed end toward said intermediate location to gradually decrease the volume of said product containing receptacle.
Claim 2
Dependent Claim
96 words
An elongated tubular member sealed at a first end and at an intermediate location along its length having an inwardly folded flexible portion extending into the outer portion defined by said first end and said intermediate point, with a second sealed end terminating short of said first end to provide a fluid tight inner chamber between said portions and a product receptacle within said folded portion and pressure generating means disposed in said inner chamber for progressively moving said second sealed end toward said intermediate location to gradually decrease the volume of said product containing receptacle.
Claim 3
Dependent Claim
37 words
In the apparatus of claim 1, a closure member disposed at said intermediate location enclosing said receptacle, and dispensing valve means on said closure member for delivering a product from said receptacle in controlled amounts and pressures.
Claim 4
Dependent Claim
67 words
3 . In the apparatus of claim 1 or claim 2, said pressure generating means comprising a plurality of pocket members disposed within said inner chamber and at spaced positions generally longitudinally of said portions, cover means releasably closing said pocket members and operatively associated with said second sealed end, said cover means removable from successive pockets as said second sealed end moves toward said intermediate location.
Claim 5
Dependent Claim
36 words
In the apparatus of claim 3, a first reactive component of a two component gas generating system disposed in said pocket members, and the second component disposed in said inner chamber externally of said pocket members.
Claim 6
Dependent Claim
22 words
In the apparatus of claim 4, one of said components being citric acid and the other of said components being sodium bicarbonate.
Claim 7
Dependent Claim
58 words
In the apparatus of claim 5, a first elongated strip containing said pocket members and a second strip constituting said cover means, one end of said second strip interconnected with said folded portion adjacent said second sealed end and the end of said first strip adjacent said one end of said second strip interconnected with said outer portion.
Claim 8
Dependent Claim
28 words
In the apparatus of any of claims 3 to 5, said pocket members being integrally formed in said outer portion and said folded portion providing said cover means.
Claim 9
Dependent Claim
22 words
In the apparatus of claim 6 or claim 7, said outer portion being relatively inflexible and said folded portion being relatively flexible.
Claim 10
Dependent Claim
43 words
In the apparatus of claim 8, a starting capsule disposed in said inner chamber containing an aliquot of said first component, said capsule adapted to release said first component into contact with said second component to initiate the generation of said gaseous pressure.
Claim 11
Dependent Claim
15 words
In the apparatus of claim 9, said capsule being frangible upon application of manual force.
Claim 12
Dependent Claim
18 words
In the apparatus of claim 9, said capsule comprised of material that is degradable in said second component.
Claim 13
Dependent Claim
33 words
In the apparatus of any of claims 3 to 11, said pocket members having progressively larger volume in sequence from the first pocket member opened to the last pocket member in the series.
Claim 14
Dependent Claim
39 words
A dispenser comprising an outer fluid tight container having dispensing valve means thereon, a product to be dispensed disposed in said container and a tubular member as defined in any of claims 1 to 11 disposed in said container.
References Cited (Backward Citations)
No citation records indexed.
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