Patent EP0033377B1 successfully refreshed from Google Patents.
EP0033377B1
Expired / Lapsed
EP
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Self-pressurizing dispensing container
Assignee: Cessione ccl Technologies Inc
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Filing: 1980-12-06
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Granted: 1986-02-26
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Expires: 2000-12-06
Abstract
No abstract record available.
Inventors
- 👤 Ellis M. Reyner
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-31 12:11
CPC Classifications
B; B65; B65D; B65D83/00; B65D83/14; B65D83/60; B65D83/62; B65D83/625
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
233 words
Self-pressurizing dispensing container with a manually actuable atomizing and dispensing valve (14), a dispensable medium (19) and internal expulsion means for developing and maintaining a relatively constant gaseous dispensing pressure for the product being dispensed, comprising an enclosed fluid impermeable flexible pouch (27) disposed within the container (10), a first and a second component (36 and 37) of a gas generation mixture disposed separately within the pouch (27) and being brought sequentially into contact for causing increasing gas generation in the pouch, characterized in that the pouch (27) sealingly encompasses first closure means including at least one first closure member (32) affixed to the interior (27c) of a first wall member (27a) of the pouch (27) and second closure means including at least one second closure member (33) affixed to the interior (27d) of a second wall member (27b) of the pouch (27) facing the first wall member (27a), the second closure means defining a plurality of pocket members (34) in spaced relation to one another, the first closure means releasably closing each of the pocket members (34), which contain one component (36) of the two-component gas generation mixture, the pocket members (34) being sequentially severable from said first closure means to empty their contents into admixture with the other component, whereby the second wall member (27b) is increasingly spaced from the first wall member (27a) to gradually expand the flexible pouch (27).
Claim 2
Dependent Claim
233 words
Self-pressurizing dispensing container with a manually actuable atomizing and dispensing valve (14), a dispensable medium (19) and internal expulsion means for developing and maintaining a relatively constant gaseous dispensing pressure for the product being dispensed, comprising an enclosed fluid impermeable flexible pouch (27) disposed within the container (10), a first and a second component (36 and 37) of a gas generation mixture disposed separately within the pouch (27) and being brought sequentially into contact for causing increasing gas generation in the pouch, characterized in that the pouch (27) sealingly encompasses first closure means including at least one first closure member (32) affixed to the interior (27c) of a first wall member (27a) of the pouch (27) and second closure means including at least one second closure member (33) affixed to the interior (27d) of a second wall member (27b) of the pouch (27) facing the first wall member (27a), the second closure means defining a plurality of pocket members (34) in spaced relation to one another, the first closure means releasably closing each of the pocket members (34), which contain one component (36) of the two-component gas generation mixture, the pocket members (34) being sequentially severable from said first closure means to empty their contents into admixture with the other component, whereby the second wall member (27b) is increasingly spaced from the first wall member (27a) to gradually expand the flexible pouch (27).
Claim 3
Dependent Claim
104 words
Dispensing container according to claim 1, characterized in that the pouch (27) forms an envelope and that said first closure member (32) and said second closure member (33) comprise a pair of sheets disposed within said envelope and permanently attached on their outer surfaces to the inner facing surfaces (27c, 27d) of the envelope along at least portions of their respective margins and releasably adhered to one another over substantially their entire contacting surfaces, and that at least one of the sheets (33) has a plurality of depressions in its surface forming the pocket members (34) and the other sheet (32) closes the depressions.
Claim 4
Dependent Claim
68 words
Dispensing container according to claim 2, characterized in that said envelope (27) is comprised of a three-layer laminated plastic, the external layer being thermoplastic linear polyester 0,0127 to 0,0772 mm in thickness, the inner layer being low-density polyethylene 0,0127 to 0,508 mm in thickness, and the middle layer being polyvinylidene chloride deposited by spraying onto at least one of the inner surfaces of said polyester and polyethylene layers.
Claim 5
Dependent Claim
55 words
Dispensing container according to claim 2, characterized in that the sheet (33) of the pair carrying the depressions (34) is comprised of a two-layer plastic lamination having an outer layer of low-density polyethylene about 0,0127 to 0,508 mm thick attached to the envelope and an inner layer of polypropylene 0,00254 to 0,254 mm in thickness.
Claim 6
Dependent Claim
49 words
Dispensing container according to claim 2, characterized in that the other sheet (32) is comprised of a three-layer plastic sandwich lamination having an inner layer of thermoplastic linear polyester 0,0077 to 0,0772 mm thick, the other layers of the sandwich being low-density polyethylene each 0,00254 to 0,508 mm thick.
Claim 7
Dependent Claim
34 words
Dispensing container according to claims 2 to 4, characterized in that the pouch (27) and the sheet (33) carrying the depressions and forming the pocket members (34) have polyethylene layers permanently heat sealed together.
Claim 8
Dependent Claim
36 words
Dispensing container according to claims 2, 3 and 5, characterized in that the said other sheet (32) is permanently adhered to the interior (27c) of its associated wall member (27a) at surfaces comprised of low-density polyethylene.
Claim 9
Dependent Claim
106 words
Dispensing container according to one of the claims 1 to 7, characterized in that a plurality of relatively short heat sealed portions (35), each adjacent and laterally spaced from a respective one of the pocket members (34), permanently join the first wall member (27a) and the first closure member (32) as well as the second wall member (27b) and the second closure member (33) and releasably join the second closure member (33) relative to the first closure member (32), and that the heat sealed portions (35) are staggered diagonally longitudinally relative to the pocket members (34) to accommodate sequential expansion of the pouch (27) during use.
Claim 10
Dependent Claim
52 words
Dispensing container according to one of the claims 1 to 8, characterized in that the one component (36) of the two-component gas generation mixture is comprised of a compound selected from the group consisting of barium carbonate, calcium carbonate and sodium bicarbonate and the other component (37) is a water soluble acid.
Claim 11
Dependent Claim
28 words
Dispensing container according to claim 9, characterized in that the one component of the gas generation mixture is sodium bicarbonate and the water soluble acid is citric acid.
Claim 12
Dependent Claim
18 words
Dispensing container according to one of the foregoing claims, characterized in that the generated gas is carbon dioxide.
Claim 13
Dependent Claim
42 words
Dispensing container according to claim 1, characterized in that starting delay means is disposed in the second component of the gas generating mixture and comprises a capsule (38) carrying a portion of the component (36) being enclosed in the pocket members (34).
References Cited (Backward Citations)
No citation records indexed.
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