US3333604A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pulsation reducer
Assignee: Individual
•
Filing: 1964-07-28
•
Granted: 1967-08-01
•
Expires: 1984-07-28
Abstract
No abstract record available.
Inventors
- 👤 Dewie W Birdwell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:38
CPC Classifications
F; F16; F16L; F16L55/00; F16L55/04; F16L55/045; F16L55/05; F16L55/052; F16L55/053; F16K; F16K47/00; F16K47/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
112 words
A METHOD OF CONTROLLING LOW AMPLITUDE, HIGH FREQUENCY IN THE RANGE OF 3450 CYCLES PER MINUTE, HIGH PRESSURE IN THE RANGE OF 400 TO 500 POUNDS PER SQUARE INCH FLUID PULSATIONS IN A LINE, SAID METHOD COMPRISING: PROVIDING OPPOSED LOW VOLUME, LOW ALTITUDE CAVITIES HAVING FLATLY CONCAVE INNER SURFACES AND BEING SEPARATED BY A DEFORMABLE, RESILIENT DIAPHRAGM NORMALLY OCCUPYING A MEDIAL PLANE BETWEEN SAID CAVITIES; APPLYING GAS PRESSURE TO ONE OF SAID CAVITIES TO DEFORM SAID DIAPHRAGM INTO CONFORMITY WITH THE OPPOSITE CAVITY WITH SAID DIAPHRAGM SUPPORTED BY THE WALLS OF SAID CAVITY, BRINGING SAID GAS PRESSURE TO APPROXIMATELY ONE-HALF TE INTENDED MAXIMUM PRESSURE IN THE OPPOSITE CAVITY, AND SUPPLYING FLUID PULSA-
Claim 2
Independent Claim
112 words
A METHOD OF CONTROLLING LOW AMPLITUDE, HIGH FREQUENCY IN THE RANGE OF 3450 CYCLES PER MINUTE, HIGH PRESSURE IN THE RANGE OF 400 TO 500 POUNDS PER SQUARE INCH FLUID PULSATIONS IN A LINE, SAID METHOD COMPRISING: PROVIDING OPPOSED LOW VOLUME, LOW ALTITUDE CAVITIES HAVING FLATLY CONCAVE INNER SURFACES AND BEING SEPARATED BY A DEFORMABLE, RESILIENT DIAPHRAGM NORMALLY OCCUPYING A MEDIAL PLANE BETWEEN SAID CAVITIES; APPLYING GAS PRESSURE TO ONE OF SAID CAVITIES TO DEFORM SAID DIAPHRAGM INTO CONFORMITY WITH THE OPPOSITE CAVITY WITH SAID DIAPHRAGM SUPPORTED BY THE WALLS OF SAID CAVITY, BRINGING SAID GAS PRESSURE TO APPROXIMATELY ONE-HALF TE INTENDED MAXIMUM PRESSURE IN THE OPPOSITE CAVITY, AND SUPPLYING FLUID PULSA-
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) | 1970-07-31 | 1971-01-30 | 1971-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-31 | 1975-01-30 | 1975-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-31 | 1979-01-30 | 1979-08-01 | $7700.00 | Window Closed / Lapsed |