US3205826A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electromagnetic vibration pumps
Assignee: Individual
•
Filing: 1963-04-26
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Granted: 1965-09-14
•
Expires: 1983-04-26
Abstract
No abstract record available.
Inventors
- 👤 Stefani Roberto De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 12:43
CPC Classifications
H; H02; H02K; H02K33/00; H02K33/02; H02K33/04; F; F04; F04B; F04B17/00; F04B17/03; F04B17/04; F04B17/042; F04B43/00; F04B43/0009; F04B43/0036; F04B43/02; F04B43/04; F04B53/00; F04B53/10; F04B53/1037; F04B53/1047; F04B53/106; F04B53/1065; F04B53/109
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
152 words
A RECIPROCATING PUMP ADAPTED TO BE INSERTED IN SMALL DIAMETER WELLS COMPRISING, IN COMBINATION, ELONGATED CYLINDRICAL HOUSING MEANS CLOSED AT OPPOSITE ENDS; A PAIR OF ELASTOMERIC DIAPHRAGM MEANS EXTENDING SPACED FROM EACH OTHER TRANSVERSELY THROUGH AND BEING FLUIDTIGHTLY CONNECTED ALONG PERIPHERAL EDGES THEREOF TO SAID HOUSING MEANS AND DIVIDING THE LATTER IN A PAIR OF END CHAMBERS AND AN INTERMEDIATE CHAMBER LOCATED BETWEEN SAID END CHAMBER; ELECTROMAGNETIC VIBRATORY MOTOR PUMPING CHAMBER; ELECTROMAGNETIC VIBRATORY MOTOR MEANS LOCATED IN SAID INTERMEDIATE CHAMBER AND HAVING A RECIPROCATING SHAFT EXTENDING IN LONGITUDINAL DIRECTION OF SAID HOUSING MEANS AND BEGIN FLUID-TIGHTLY CONNECTED RESPECTIVELY, TO BE SUPPORTED THEREBY FOR RECIPROCATING RESPECTIVELY, TO BE SUPPORTED THEREBY FOR RECIPROCATING MOVEMENT IN AXIAL DIRECTION; INLET AND OUTLET MEANS FORMED IN THE CLOSED END OF THE HOUSING FORMING SAID ONE END CHAMBER; AND A PAIR OF VALVE MEANS RESPECTIVELY COOPERATING WITH SAID INLET AND OUTLET MEANS FOR OPENING AND CLOSING THE LATTER.
Claim 2
Dependent Claim
152 words
A RECIPROCATING PUMP ADAPTED TO BE INSERTED IN SMALL DIAMETER WELLS COMPRISING, IN COMBINATION, ELONGATED CYLINDRICAL HOUSING MEANS CLOSED AT OPPOSITE ENDS; A PAIR OF ELASTOMERIC DIAPHRAGM MEANS EXTENDING SPACED FROM EACH OTHER TRANSVERSELY THROUGH AND BEING FLUIDTIGHTLY CONNECTED ALONG PERIPHERAL EDGES THEREOF TO SAID HOUSING MEANS AND DIVIDING THE LATTER IN A PAIR OF END CHAMBERS AND AN INTERMEDIATE CHAMBER LOCATED BETWEEN SAID END CHAMBER; ELECTROMAGNETIC VIBRATORY MOTOR PUMPING CHAMBER; ELECTROMAGNETIC VIBRATORY MOTOR MEANS LOCATED IN SAID INTERMEDIATE CHAMBER AND HAVING A RECIPROCATING SHAFT EXTENDING IN LONGITUDINAL DIRECTION OF SAID HOUSING MEANS AND BEGIN FLUID-TIGHTLY CONNECTED RESPECTIVELY, TO BE SUPPORTED THEREBY FOR RECIPROCATING RESPECTIVELY, TO BE SUPPORTED THEREBY FOR RECIPROCATING MOVEMENT IN AXIAL DIRECTION; INLET AND OUTLET MEANS FORMED IN THE CLOSED END OF THE HOUSING FORMING SAID ONE END CHAMBER; AND A PAIR OF VALVE MEANS RESPECTIVELY COOPERATING WITH SAID INLET AND OUTLET MEANS FOR OPENING AND CLOSING THE LATTER.
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) | 1968-09-13 | 1969-03-15 | 1969-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-13 | 1973-03-15 | 1973-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-13 | 1977-03-15 | 1977-09-14 | $7700.00 | Window Closed / Lapsed |