US3137316A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid pulsation dampener
Assignee: Individual
•
Filing: 1964-01-13
•
Granted: 1964-06-16
•
Expires: 1984-01-13
Abstract
No abstract record available.
Inventors
- 👤 Wilhelm S Everett
- 👤 John F Richards
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 13:41
CPC Classifications
F; F16; F16L; F16L55/00; F16L55/04; F16L55/045; F16L55/05; F16L55/052; Y; Y10; Y10T; Y10T137/00; Y10T137/206; Y10T137/2087; Y10T137/2109; Y10T137/2273; Y10T137/2931; Y10T137/3115; Y10T137/3118; Y10T137/8593; Y10T137/85978; Y10T137/86035; Y10T137/86043
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
82 words
A DEVICE FOR DAMPENING SURGE PRESSURES IN A FLUID LINE, SAID DEVICE COMPRISING A CLOSED RECEPTABLE ENCIRCLING AND SEALABLY CONNECTED TO SAID LINE AT TWO SPACED POINTS ALONG THE LENGTH THEREOF; A NORMALLY CLOSED VALVE COMMUNICATING BETWEEN THE INTERIOR OF SAID RECEPTACLE AND AN EXTERNAL SOURCE OF GAS, SAID VALVE BEING DESIGNED TO OPEN IN RESPONSE TO A GIVEN PRESSURE DROP WITHIN SAID RECEPTACLE; A VENTURI SECTION INTERPOSED IN SAID LINE, SAID VENTURI SECTION DEFINING A THROAT PORTION, AND AT LEAST ONE
Claim 2
Independent Claim
82 words
A DEVICE FOR DAMPENING SURGE PRESSURES IN A FLUID LINE, SAID DEVICE COMPRISING A CLOSED RECEPTABLE ENCIRCLING AND SEALABLY CONNECTED TO SAID LINE AT TWO SPACED POINTS ALONG THE LENGTH THEREOF; A NORMALLY CLOSED VALVE COMMUNICATING BETWEEN THE INTERIOR OF SAID RECEPTACLE AND AN EXTERNAL SOURCE OF GAS, SAID VALVE BEING DESIGNED TO OPEN IN RESPONSE TO A GIVEN PRESSURE DROP WITHIN SAID RECEPTACLE; A VENTURI SECTION INTERPOSED IN SAID LINE, SAID VENTURI SECTION DEFINING A THROAT PORTION, AND AT LEAST ONE
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) | 1967-06-16 | 1967-12-16 | 1968-06-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-16 | 1971-12-16 | 1972-06-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-16 | 1975-12-16 | 1976-06-16 | $7700.00 | Window Closed / Lapsed |