US3635261A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for packaging products which are to be stored separately but dispensed simultaneously
Assignee: L'Oréal SA
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Filing: 1969-07-25
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Granted: 1972-01-18
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Expires: 1989-07-25
Abstract
Abstract A dispenser for packaging two products which must be stored separately but mixed when dispensed, said dispenser comprising an outer container and an inner container within said outer container, said inner container being provided with closure means which opens in response to a difference between the pressure in said outer container and that in said inner container, and means for creating such a pressure difference.
Inventors
- 👤 Bruno Morane
- 👤 Charles Paoletti
- 👤 Louis Merrien
- 👤 Manlio Maurelli
- 👤 Robert Sathicq
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:37
CPC Classifications
B; B65; B65D; B65D83/00; B65D83/14; B65D83/60; B65D83/64; B65B; B65B29/00; B65B29/10; B65B31/00; B65B31/003; B65D83/141; B65D83/42; B65D83/425; B65D83/68; B65D83/682; B65D83/687; B65B2230/00; B65B2230/02
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
126 words
A method of packaging two products which must be stored separately but mixed when dispensed, said method comprising the steps of introducing one of said products into an inner container, adapted to rupture under pressure, introducing the other product at the same pressure as said first product into a jacket enclosing said inner container and provided with an external outlet, and associating with said jacket a cartridge holding propellant fluid under pressure and means for bringing said cartridge and inner container into communication with each other to create a fluid pressure differential between the contents of said inner container and jacket sufficient to cause rupture of said inner container and thereby admit the product held by said inner container, and said propellant, into said outer jacket.
Claim 2
Independent Claim
126 words
A method of packaging two products which must be stored separately but mixed when dispensed, said method comprising the steps of introducing one of said products into an inner container, adapted to rupture under pressure, introducing the other product at the same pressure as said first product into a jacket enclosing said inner container and provided with an external outlet, and associating with said jacket a cartridge holding propellant fluid under pressure and means for bringing said cartridge and inner container into communication with each other to create a fluid pressure differential between the contents of said inner container and jacket sufficient to cause rupture of said inner container and thereby admit the product held by said inner container, and said propellant, into said outer jacket.
Claim 3
Dependent Claim
20 words
The method as claimed in claim 1 in which said cartridge is formed of a separate chamber in said jacket.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-01-17 | 1975-07-19 | 1976-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-17 | 1979-07-19 | 1980-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-17 | 1983-07-19 | 1984-01-18 | $7700.00 | Window Closed / Lapsed |