US2730951A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electromagnetic centrifugal pump
Assignee: Individual
•
Filing: 1950-01-20
•
Granted: 1956-01-17
•
Expires: 1970-01-20
Abstract
No abstract record available.
Inventors
- 👤 Khatchik O Donelian
- 👤 John R Menke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 08:12
CPC Classifications
H; H02; H02K; H02K44/00; H02K44/02; H02K44/06; F; F04; F04D; F04D7/00; F04D7/02; F04D7/06; F04D7/065
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
139 words
AN ELECTROMAGNETIC PUMP FOR ELECTRICALLY CONDUCTIVE FLUIDS COMPRISING A PAIR OF SPACED SUBSTANTIALLY PARALLEL WALLS FORMING A FLAT PARTITIONLESS CHAMBER, AN INLET IN A WALL DISPOSED SUBSTANTIALLY CENTRALLY THEREOF, AN ENLARGE ANNULAR CHAMBER SURROUNDING AND COMMUNICATING WITH THE FIRST CHAMBER AND HAVING AN OUTLET IN THE PLANE OF THE FIRST CHAMBER, AND ELECTROMAGNETIC MEANS FOR CREATING A MAGNETIC FIELD ROTATING ABOUT SAID INLET AND ACROSS THE FIRST CHAMBER IN A DIRECTION PARALLEL WITH THE AXIS OF THE ANNULAR CHAMBER, SAID MEANS INCLUDING AN ANNULAR LAMINATED CORE COAXIAL WITH THE INLET, SAID CORE BEING ON ONE SIDE OF THE FIRST CHAMBER AND ABUTTING ONE OF SAID WALLS, RADIAL SLOTS EXTENDING THROUGHOUT ONE END OF THE CORE, WINDINGS IN THE SLOTS, AND AN ANNULAR LIMINATED ORMATURE ABUTTING THE OTHER WALL AND DISPOSED ON THE SIDE OF THE CHAMBER OPPOSITE THE CORE.
Claim 2
Dependent Claim
139 words
AN ELECTROMAGNETIC PUMP FOR ELECTRICALLY CONDUCTIVE FLUIDS COMPRISING A PAIR OF SPACED SUBSTANTIALLY PARALLEL WALLS FORMING A FLAT PARTITIONLESS CHAMBER, AN INLET IN A WALL DISPOSED SUBSTANTIALLY CENTRALLY THEREOF, AN ENLARGE ANNULAR CHAMBER SURROUNDING AND COMMUNICATING WITH THE FIRST CHAMBER AND HAVING AN OUTLET IN THE PLANE OF THE FIRST CHAMBER, AND ELECTROMAGNETIC MEANS FOR CREATING A MAGNETIC FIELD ROTATING ABOUT SAID INLET AND ACROSS THE FIRST CHAMBER IN A DIRECTION PARALLEL WITH THE AXIS OF THE ANNULAR CHAMBER, SAID MEANS INCLUDING AN ANNULAR LAMINATED CORE COAXIAL WITH THE INLET, SAID CORE BEING ON ONE SIDE OF THE FIRST CHAMBER AND ABUTTING ONE OF SAID WALLS, RADIAL SLOTS EXTENDING THROUGHOUT ONE END OF THE CORE, WINDINGS IN THE SLOTS, AND AN ANNULAR LIMINATED ORMATURE ABUTTING THE OTHER WALL AND DISPOSED ON THE SIDE OF THE CHAMBER OPPOSITE THE CORE.
References Cited (Backward Citations)
DE543214C
Cited
GB344881A
Cited
GB528091A
Cited
FR888532A
Cited
CH239816A
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GB582036A
Cited
GB594849A
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US2658452A
Cited
US2652778A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-01-16 | 1959-07-18 | 1960-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-01-16 | 1963-07-18 | 1964-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-01-16 | 1967-07-18 | 1968-01-17 | $7700.00 | Window Closed / Lapsed |