US3272403A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve for pressure container
Assignee: Primerica Inc
•
Filing: 1964-10-19
•
Granted: 1966-09-13
•
Expires: 1984-10-19
Abstract
No abstract record available.
Inventors
- 👤 Alexander Claude Livingston
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:47
CPC Classifications
B; B65; B65D; B65D83/00; B65D83/14; B65D83/44; B65D83/48; F; F16; F16K; F16K15/00; F16K15/14; F16K15/1402; B65D83/16; B65D83/162; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7838; Y10T137/7839; Y10T137/784; Y10T137/7843
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
159 words
A DISPENSING VALVE FOR A PRESSURE CONTAINER COMPRISING AN ANNULAR TRANSVERSE WALL MEANS SURROUNDING AN OPENING LEADING TO THE INTERIOR OF SAID CONTAINER, AN ELASTOMERIC VALVE ELEMENT BRIDGING SAID OPENING WITH ITS PERIPHERAL MARGIN RESTING UPON SAID WALL MEANS, SAID VALVE ELEMENT HAVING A SOLID CENTRAL PORTION AND A PLURALITY OF SLITTED PERFORATIONS DISPOSED BETWEEN SAID PERIPHERAL MARGIN AND CENTRAL PORTION, SAID PERFORATIONS BEING NORMALLY CLOSED BECAUSE OF THE INHERENT RESILIENCY OF SAID VALVE ELEMENT WHEN INITS NORMAL RELAXED POSITION BUT ADAPTED TO BE FLEXED OPEN WHEN SAID CENTRAL PORTION IS DEPRESSED, AND A RETAINING-SEATING MEMBER EXTENDING UPWARDLY AND INWARDLY FROM SAID WALL MEANS TO SEALINGLY ANCHOR SAID VALVE ELEMENT IN SAID BRIDGING POSITION, SAID RETAINING-SEATING MEMBER INCLUDING A CENTRAL ANNULAR PORTION DISPOSED OVER AND SEALINGLY ENGAGING SAID CENTRAL PORTION OF SAID VALVE ELEMENT TO PROVIDE A VALVE SEAT THEREFOR, AND AN ACTUATOR INCLUDING A HOLLOW DEPENDING STEM SLIDABLY DISPOSED IN SAID ANNULAR PORTION FOR DEPRESSING SAID VALVE ELEMENT.
Claim 2
Dependent Claim
159 words
A DISPENSING VALVE FOR A PRESSURE CONTAINER COMPRISING AN ANNULAR TRANSVERSE WALL MEANS SURROUNDING AN OPENING LEADING TO THE INTERIOR OF SAID CONTAINER, AN ELASTOMERIC VALVE ELEMENT BRIDGING SAID OPENING WITH ITS PERIPHERAL MARGIN RESTING UPON SAID WALL MEANS, SAID VALVE ELEMENT HAVING A SOLID CENTRAL PORTION AND A PLURALITY OF SLITTED PERFORATIONS DISPOSED BETWEEN SAID PERIPHERAL MARGIN AND CENTRAL PORTION, SAID PERFORATIONS BEING NORMALLY CLOSED BECAUSE OF THE INHERENT RESILIENCY OF SAID VALVE ELEMENT WHEN INITS NORMAL RELAXED POSITION BUT ADAPTED TO BE FLEXED OPEN WHEN SAID CENTRAL PORTION IS DEPRESSED, AND A RETAINING-SEATING MEMBER EXTENDING UPWARDLY AND INWARDLY FROM SAID WALL MEANS TO SEALINGLY ANCHOR SAID VALVE ELEMENT IN SAID BRIDGING POSITION, SAID RETAINING-SEATING MEMBER INCLUDING A CENTRAL ANNULAR PORTION DISPOSED OVER AND SEALINGLY ENGAGING SAID CENTRAL PORTION OF SAID VALVE ELEMENT TO PROVIDE A VALVE SEAT THEREFOR, AND AN ACTUATOR INCLUDING A HOLLOW DEPENDING STEM SLIDABLY DISPOSED IN SAID ANNULAR PORTION FOR DEPRESSING SAID VALVE ELEMENT.
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) | 1969-09-12 | 1970-03-14 | 1970-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-12 | 1974-03-14 | 1974-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-12 | 1978-03-14 | 1978-09-13 | $7700.00 | Window Closed / Lapsed |