US3342210A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Surge suppressor
Assignee: Individual
•
Filing: 1964-06-22
•
Granted: 1967-09-19
•
Expires: 1984-06-22
Abstract
No abstract record available.
Inventors
- 👤 Colin A Renton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 09:59
CPC Classifications
F; F16; F16L; F16L55/00; F16L55/04; F16L55/045; F16K; F16K47/00; F16K47/02; F16K47/023; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86381
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
139 words
IN A SURGE SUPPRESSING DEVICE FOR PIPE LINES, A CHAMBER OF GREATER INSIDE DIAMETER THAN THE INSIDE DIAMETER OF THE PIPE LINE BEING SERVED, A VALVE SEAT IN SAID CHAMBER, A VALVE MOUNTED IN SAID VALVE SEAT HAVING A VALVE HEAD OF THE SAME DIAMETER AS THE INSIDE DIAMETER OF THE PIPE LINE BEING SERVED, A TUBULAR STEM ON SAID VALVE HEAD HAVING ONE END OPEN TO PERMIT INLET OF FLUID MOVING UPSTREAM, AND HAVING A GAS FILLED SURGE CHAMBER AT THE OTHER END, A DIAPHRAGM BETWEEN SAID SURGE CHAMBER AND SAID VALVE STEM EXPANDABLE BY UPSTREAM PRESSURE, YIELDABLE MEANS FOR MAINTAINING SAID VALVE NORMALLY IN OPEN POSITION AND MEANS FOR PERMITTING DOWN STREAM FLOW OF FLUID THROUGH SAID VALVE WHEN SAID VALVE IS IN OPEN POSITION AND AGAINST SAID SURGE CHAMBER WHEN SAID VALVE IS IN CLOSED POSITION.
References Cited (Backward Citations)
US2707002A
Cited
US2742928A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-09-18 | 1971-03-20 | 1971-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-18 | 1975-03-20 | 1975-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-18 | 1979-03-20 | 1979-09-19 | $7700.00 | Window Closed / Lapsed |