US3157202A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Surge tank
Assignee: HYPRO ENGINEERING Inc
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Filing: 1961-09-05
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Granted: 1964-11-17
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Expires: 1981-09-05
Abstract
No abstract record available.
Inventors
- 👤 Harry J Sadler
- 👤 Ernest E Cook
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:29
CPC Classifications
F; F16; F16L; F16L55/00; F16L55/04; F16L55/045; F16L55/05; F16L55/052; F16L55/053
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
109 words
A SURGE TANK COMPRISING, A MAIN TANK, AN UPSTANDING SURGE TUBE EXTENDING INTO SAID TANK, SAID SURGE TUBE DEFINING A TUBE CHAMBER PARTIALLY EXTENDING INTO SAID MAIN TANK, A PLURALITY OF RESTRICTIVE APERTURES SPACED AROUND SAID SURGE TUBE WITHIN SAID MAIN TANK, AND A SLEEVE SHIELD POSITIONED ABOUT SAID SURGE TUBE AND SECURED TO SAID SURGE TUBE ABOVE SAID APERTURES AT THE UPPER END THEREOF, THE ANNULAR CROSS-SECTIONAL AREA BETWEEN SAID SURGE TUBE AND SAID SLEEVE SHIELD BEING GREATER THAN THE TOTAL AREA OF SAID PLURALITY OF RESTRICTIVE APERTURES, SAID SLEEVE SHIELD AND SAID SURGE TUBE DEFINING THEREBETWEEN A SURGE CHAMBER INTO WHICH FLUID FLOWS FROM SAID RESTRICTIVE APERTURES.
Claim 2
Dependent Claim
109 words
A SURGE TANK COMPRISING, A MAIN TANK, AN UPSTANDING SURGE TUBE EXTENDING INTO SAID TANK, SAID SURGE TUBE DEFINING A TUBE CHAMBER PARTIALLY EXTENDING INTO SAID MAIN TANK, A PLURALITY OF RESTRICTIVE APERTURES SPACED AROUND SAID SURGE TUBE WITHIN SAID MAIN TANK, AND A SLEEVE SHIELD POSITIONED ABOUT SAID SURGE TUBE AND SECURED TO SAID SURGE TUBE ABOVE SAID APERTURES AT THE UPPER END THEREOF, THE ANNULAR CROSS-SECTIONAL AREA BETWEEN SAID SURGE TUBE AND SAID SLEEVE SHIELD BEING GREATER THAN THE TOTAL AREA OF SAID PLURALITY OF RESTRICTIVE APERTURES, SAID SLEEVE SHIELD AND SAID SURGE TUBE DEFINING THEREBETWEEN A SURGE CHAMBER INTO WHICH FLUID FLOWS FROM SAID RESTRICTIVE APERTURES.
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) | 1967-11-17 | 1968-05-18 | 1968-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-11-17 | 1972-05-18 | 1972-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-11-17 | 1976-05-18 | 1976-11-17 | $7700.00 | Window Closed / Lapsed |