Patent US6120474A successfully refreshed from Google Patents.
US3667652A
Expired / Lapsed
US
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Method and apparatus for separately packaging two liquids which are to be simultaneously dispensed
Assignee: L'Oréal SA
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Filing: 1969-12-01
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Granted: 1972-06-06
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Expires: 1989-12-01
Abstract
Abstract Two liquids are stored in a single jacket on opposite sides of a plug of compressible material. The fluids are mixed by applying fluid pressure to compress the plug and the mixture is then dispensed through a valve or nozzle in the jacket. The pressure may be supplied by actuating a piston or by releasing a compressed fluid into the jacket, or both.
Inventors
- 👤 Bruno Morane
- 👤 Manlio Maurelli
- 👤 Charles Paoletti
- 👤 Louis Merrien
- 👤 Robert Sathicq
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 01:42
CPC Classifications
A; A61; A61M; A61M5/00; A61M5/178; A61M5/19; A61M5/20; A61M5/2053; B; B65; B65D; B65D81/00; B65D81/32; B65D81/3255; B65D83/00; B65D83/14; B65D83/16; B65D83/162; A61M2207/00
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
95 words
A container comprising an outer jacket having two ends spaced by a side wall, at least one plug mounted inside the jacket transversely of said side wall and in liquid-tight sealing relationship therewith, said plug being made of a cellular material having closed cells which responds to an increase in fluid pressure thereagainst by contracting in all directions, and means for increasing the fluid pressure within said jacket to an extent sufficient to cause contraction of said plug transversely of said side wall and thereby terminate the sealing relationship between said plug and side wall.
Claim 2
Dependent Claim
95 words
A container comprising an outer jacket having two ends spaced by a side wall, at least one plug mounted inside the jacket transversely of said side wall and in liquid-tight sealing relationship therewith, said plug being made of a cellular material having closed cells which responds to an increase in fluid pressure thereagainst by contracting in all directions, and means for increasing the fluid pressure within said jacket to an extent sufficient to cause contraction of said plug transversely of said side wall and thereby terminate the sealing relationship between said plug and side wall.
Claim 3
Dependent Claim
43 words
A container as claimed in claim 1 in which said plug divides said container into two compartments, each of which has, adjacent to said plug, a diameter as small as that of the section of said container in which said plug is located.
Claim 4
Dependent Claim
19 words
A container as claimed in claim 1 which holds two different liquids, one on each side of said plug.
Claim 5
Dependent Claim
22 words
Container as claimed in claim 1 in which the compressible plug is made of a synthetic expanded foam material having closed cells.
Claim 6
Dependent Claim
13 words
Container as claimed in claim 4 in which the synthetic material is polyethylene.
Claim 7
Dependent Claim
18 words
Container as claimed in claim 1 in which the compressible plug is an envelope containing a compressed gas.
Claim 8
Dependent Claim
16 words
Container as claimed in claim 6 in which the envelope is provided with localized stiffening ribs.
Claim 9
Dependent Claim
46 words
A container as claimed in claim 1 in which said means for increasing the pressure inside said jacket comprises a sealed chamber at one end of said jacket enclosing a pressurizing fluid, and means for bringing said chamber into communication with the inside of said jacket.
Claim 10
Dependent Claim
46 words
A container as claimed in claim 8 comprising a movable piston slidably mounted within said jacket, and dividing said jacket into two parts, one of which contains said plug, and said chamber is adapted to be brought into communication with the other part of said jacket.
Claim 11
Dependent Claim
38 words
A container as claimed in claim 1 in which said presSure increasing means is a piston having a head in sealing contact with the walls of said jacket and a rod projecting from one end of said jacket.
Claim 12
Dependent Claim
17 words
A container as claimed in claim 10 comprising frangible means for preventing movement of said piston rod.
Claim 13
Dependent Claim
26 words
A container as claimed in claim 11 in which said dispensing means is a nozzle at one end of said jacket terminating in a frangible closure.
Claim 14
Dependent Claim
26 words
In combination a container as claimed in claim 12 and an injection needle adapted to be mounted on said nozzle when said frangible closure is removed.
Claim 15
Dependent Claim
23 words
A container as claimed in claim 12 comprising lateral projections extending radially outward from the end of said jacket remote from said nozzle.
Claim 16
Dependent Claim
20 words
A container as claimed in claim 12 provided with transverse ribs inside the end of said jacket carrying said nozzle.
Claim 17
Dependent Claim
118 words
Method of separately storing and simultaneously dispensing two liquids which comprises the steps of storing said liquids within a single jacket on opposite sides of a compressible plug in sealing engagement with the side walls of said jacket and dividing said jacket into two parts, said plug being made of a cellular material having closed cells which responds to an increase in pressure thereagainst by contracting in all directions, applying fluid pressure to said plug until it contracts sufficiently in a direction transverse to said side walls to permit mixture of said liquids, and then dispensing the resulting mixture through a valve at one end of said jacket which is kept closed while said plug is being compressed.
Claim 18
Dependent Claim
118 words
Method of separately storing and simultaneously dispensing two liquids which comprises the steps of storing said liquids within a single jacket on opposite sides of a compressible plug in sealing engagement with the side walls of said jacket and dividing said jacket into two parts, said plug being made of a cellular material having closed cells which responds to an increase in pressure thereagainst by contracting in all directions, applying fluid pressure to said plug until it contracts sufficiently in a direction transverse to said side walls to permit mixture of said liquids, and then dispensing the resulting mixture through a valve at one end of said jacket which is kept closed while said plug is being compressed.
Claim 19
Dependent Claim
17 words
Method as claimed in claim 16 in which said plug is compressed by exerting fluid pressure thereagainst.
Claim 20
Dependent Claim
24 words
Method as claimed in claim 17 in which said fluid pressure is applied by admitting a pressurized fluid to one side of said plug.
Claim 21
Dependent Claim
26 words
Method as claimed in claim 17 in which said fluid pressure is applied by pressing a piston against the liquid on one side of said plug.
Claim 22
Dependent Claim
13 words
Method as claimed in claim 19 in which said piston is manually actuated.
Claim 23
Dependent Claim
15 words
Method as claimed in claim 19 in which said piston is actuated by fluid pressure.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-06-06 | 1975-12-06 | 1976-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-06 | 1979-12-06 | 1980-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-06 | 1983-12-06 | 1984-06-06 | $7700.00 | Window Closed / Lapsed |