Patent US906963A successfully refreshed from Google Patents.
US3249261A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Post-use foaming prevention means for aerosol foam type containers
Assignee: Anderson Clayton and Co
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Filing: 1963-08-30
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Granted: 1966-05-03
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Expires: 1983-08-30
Abstract
No abstract record available.
Inventors
- 👤 Einar I Benediktson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:55
CPC Classifications
B; B65; B65D; B65D83/00; B65D83/14; B65D83/44; B65D83/46
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
103 words
IN A DISPENSING DEVICE HAVING A DISCHARGE VALVE FOR DISCHARGING A FLUID UNDER PRESSURE, A DISCHARGE ORIFICE, AND AN EXPANSION PASSAGEWAY BETWEEN SAID VALVE AND SAID ORIFICE FOR CONDUCTING DISCHARGED MATERIAL FROM SAID VALVE TO SAID ORIFICE WHILE PERMITTING SAID MATERIAL TO EXPAND, SAID PASSAGEWAY BEING OPEN TO SAID ORIFICE TO PERMIT FLUID PRESSURE THEREIN TO EQUALIZE WITH THAT TO THE EXTERIOR OF SAID ORIFICE, THE IMPROVEMENT COMPRISING A BODY OF SPONGY MATERIAL CONFINED IN THE ENTIRETY THERETO IN SAID DEVICE IN COMMUNICATION WITH SAID PASSAGEWAY UPSTREAM OF SAID ORIFICE WHEREBY FOAMING OF MATERIAL FROM SAID ORIFICE AFTER CLOSING OF VALVE IS PREVENTED.
Claim 2
Dependent Claim
103 words
IN A DISPENSING DEVICE HAVING A DISCHARGE VALVE FOR DISCHARGING A FLUID UNDER PRESSURE, A DISCHARGE ORIFICE, AND AN EXPANSION PASSAGEWAY BETWEEN SAID VALVE AND SAID ORIFICE FOR CONDUCTING DISCHARGED MATERIAL FROM SAID VALVE TO SAID ORIFICE WHILE PERMITTING SAID MATERIAL TO EXPAND, SAID PASSAGEWAY BEING OPEN TO SAID ORIFICE TO PERMIT FLUID PRESSURE THEREIN TO EQUALIZE WITH THAT TO THE EXTERIOR OF SAID ORIFICE, THE IMPROVEMENT COMPRISING A BODY OF SPONGY MATERIAL CONFINED IN THE ENTIRETY THERETO IN SAID DEVICE IN COMMUNICATION WITH SAID PASSAGEWAY UPSTREAM OF SAID ORIFICE WHEREBY FOAMING OF MATERIAL FROM SAID ORIFICE AFTER CLOSING OF VALVE IS PREVENTED.
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) | 1969-05-02 | 1969-11-01 | 1970-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-02 | 1973-11-01 | 1974-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-02 | 1977-11-01 | 1978-05-03 | $7700.00 | Window Closed / Lapsed |