Patent US3073337A successfully refreshed from Google Patents.
US3073337A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure equalizing valve mechanism
Assignee: —
•
Filing: —
•
Granted: 1963-01-15
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Expires: 1980-01-15
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:55
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/12; F16K31/18; F16K31/20; F16K31/24; F16K31/26; F16K31/265; Y; Y10; Y10T; Y10T137/00; Y10T137/2931; Y10T137/3003; Y10T137/3006; Y10T137/7287; Y10T137/7313; Y10T137/7323; Y10T137/7358; Y10T137/7439; Y10T137/7491
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
147 words
IN COMBINATION WITH A RECEPTACLE HAVING A CHAMBER THEREIN RECEIVING A FLUID UNDER ATMOSPHERIC PRESSURE, A BASE MEMBER SECURED TO SAID RECEPTACLE EXTENDING INTO THE CHAMBER OF THE RECEPTACLE AND HAVING A PASSAGEWAY THERETHROUGH, A HOLLOW CAP DETACHABLY SECURED IN SEALED RELATION UPON SAID BASE MEMBER HAVING A CHAMBER THEREIN INTO WHICH THE PASSAGEWAY OF THE BASE MEMBER OPENS, A VALVE STEM SLIDABLE IN THE PASSAGEWAY OF THE BASE MEMBER HAVING AN END PROJECTING INTO THE CHAMBER OF THE TANK AND HAVING AN OPPOSITE END PROVIDED WITH A VALVE HEAD DISPOSED IN THE CHAMBER OF SAID HOLLOW CAP, SAID VALVE STEM BEING SLIDABLE IN THE PASSAGEWAY OF THE BASE MEMBER IN SEALED RELATION THEREIN, A VALVE SEAT MOUNTED UPON SAID HOLLOW CAP HAVING A PASSAGEWAY THERETHROUGH WITH AN ORIFICE OPENING INTO THE CHAMBER OF SAID CAP, A PIPE LINE CONNECTED WITH THE HOLLOW CAP HAVING A PASSAGEWAY
Claim 2
Dependent Claim
147 words
IN COMBINATION WITH A RECEPTACLE HAVING A CHAMBER THEREIN RECEIVING A FLUID UNDER ATMOSPHERIC PRESSURE, A BASE MEMBER SECURED TO SAID RECEPTACLE EXTENDING INTO THE CHAMBER OF THE RECEPTACLE AND HAVING A PASSAGEWAY THERETHROUGH, A HOLLOW CAP DETACHABLY SECURED IN SEALED RELATION UPON SAID BASE MEMBER HAVING A CHAMBER THEREIN INTO WHICH THE PASSAGEWAY OF THE BASE MEMBER OPENS, A VALVE STEM SLIDABLE IN THE PASSAGEWAY OF THE BASE MEMBER HAVING AN END PROJECTING INTO THE CHAMBER OF THE TANK AND HAVING AN OPPOSITE END PROVIDED WITH A VALVE HEAD DISPOSED IN THE CHAMBER OF SAID HOLLOW CAP, SAID VALVE STEM BEING SLIDABLE IN THE PASSAGEWAY OF THE BASE MEMBER IN SEALED RELATION THEREIN, A VALVE SEAT MOUNTED UPON SAID HOLLOW CAP HAVING A PASSAGEWAY THERETHROUGH WITH AN ORIFICE OPENING INTO THE CHAMBER OF SAID CAP, A PIPE LINE CONNECTED WITH THE HOLLOW CAP HAVING A PASSAGEWAY
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) | 1966-01-14 | 1966-07-16 | 1967-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-14 | 1970-07-16 | 1971-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-14 | 1974-07-16 | 1975-01-15 | $7700.00 | Window Closed / Lapsed |