US3834589A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure-responsive safety device for aerosol dispenser and containers equipped therewith
Assignee: L'Oréal SA
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Filing: 1972-07-11
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Granted: 1974-09-10
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Expires: 1992-07-11
Abstract
Abstract CONTAINER HAS CONCAVE BOTTOM, AND CARTRIDGE OF PRESSURIZING GAS WITHIN IT NEAR THE BOTTOM. A RESILIENT SAFETY DEVICE IS SEATED IN THE BOTTOM AND DEFINES A CENTRAL HOLE. A PIN IS SLIDABLY POSITIONED IN SAID HOLE IN ALIGNMENT WITH THE CARTRIDGE SO AS TO REPTURE SAID CARTRIDGE WHEN DEPRESSED. THE SAFETY DEVICE BLUGES OUTWARDLY WHEN THERE IS EXCESSIVE PRESSURE INSIDE THE CONTAINER, THUS ENLARGING THE HOLE SO THAT GAS CAN ESCAPE AROUND THE PIN. D R A W I N G
Inventors
- 👤 B Morane
- 👤 C Paoletti
- 👤 R Sathicq
- 👤 M Maurelli
- 👤 L Merrien
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 06:56
CPC Classifications
B; B65; B65D; B65D83/00; B65D83/14; B65D83/60; B65D83/673; B65D2251/00; B65D2251/0003; B65D2251/0006; B65D2251/0012; B65D2251/0068; B65D2251/0075
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-09-09 | 1978-03-11 | 1978-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-09 | 1982-03-11 | 1982-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-09 | 1986-03-11 | 1986-09-10 | $7700.00 | Window Closed / Lapsed |