US3155308A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid pump
Assignee: Individual
•
Filing: 1962-09-14
•
Granted: 1964-11-03
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Expires: 1982-09-14
Abstract
No abstract record available.
Inventors
- 👤 Chester E Tussey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 15:38
CPC Classifications
F; F04; F04B; F04B39/00; F04B39/10; A; A01; A01K; A01K63/00; A01K63/04; A01K63/047; F04B39/1073; F04B39/108; F04B45/00; F04B45/02; F04B45/027; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7879; Y10T137/7888
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
98 words
IN A PUMPING DEVICE, MEANS FOR CREATING FLUID PRESSURE PULSATIONS INCLUDING A PUMP CHAMBER IN WHICH SAID PULSATIONS ARE CREATED, A POWER UNIT FOR CREATING A MAGNETIC FIELD MOVING IN THE CHAMBER, AND AN ARMATURE MOVABLE IN SAID CHAMBER IN RESPONSE TO FIELD MOVEMENT THEREIN FOR EFFECTING SAID PULSATION CREATION, THE ARMATURE BEING CARRIED TO MOVE AWAY FROM THE POWER UNIT AS FLUID ENTERS THE PUMP CHAMBER, THE PUMP CHAMBER HAVING A WALL MEMBER CHARACTERIZED AS FLEXIBLE IN RECIPROCATION IN RESPONSE TO SAID ARMATURE MOVEMENT DURING WHICH THE ARMATURE AT ALL TIMES REMAINS ESSENTIALLY RIGID IN SAID CHAMBER.
Claim 2
Dependent Claim
98 words
IN A PUMPING DEVICE, MEANS FOR CREATING FLUID PRESSURE PULSATIONS INCLUDING A PUMP CHAMBER IN WHICH SAID PULSATIONS ARE CREATED, A POWER UNIT FOR CREATING A MAGNETIC FIELD MOVING IN THE CHAMBER, AND AN ARMATURE MOVABLE IN SAID CHAMBER IN RESPONSE TO FIELD MOVEMENT THEREIN FOR EFFECTING SAID PULSATION CREATION, THE ARMATURE BEING CARRIED TO MOVE AWAY FROM THE POWER UNIT AS FLUID ENTERS THE PUMP CHAMBER, THE PUMP CHAMBER HAVING A WALL MEMBER CHARACTERIZED AS FLEXIBLE IN RECIPROCATION IN RESPONSE TO SAID ARMATURE MOVEMENT DURING WHICH THE ARMATURE AT ALL TIMES REMAINS ESSENTIALLY RIGID IN SAID CHAMBER.
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) | 1967-11-03 | 1968-05-04 | 1968-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-11-03 | 1972-05-04 | 1972-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-11-03 | 1976-05-04 | 1976-11-03 | $7700.00 | Window Closed / Lapsed |