US3072810A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Submersible electric motor
Assignee: Emerson Electric Co
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Filing: 1959-12-28
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Granted: 1963-01-08
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Expires: 1979-12-28
Abstract
No abstract record available.
Inventors
- 👤 Frederick O Luenberger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 07:21
CPC Classifications
H; H02; H02K; H02K5/00; H02K5/04; H02K5/12; H02K5/128; H02K5/1285
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
117 words
IN A SUBMERSIBLE ELECTRIC MOTOR: A CASING FOR THE MOTOR; SAID CASING HAVING AN END WALL; AN EXTENSION ATTACHED AT ONE END TO THE EXTENSION; SAID EXTENSION HAVING AN OPENING TO VENT THE INTERIOR OF THE EXTENSION TO THE EXTERIOR OF THE CASING; AND MEANS FORMING WITH THE OUTER SURFACE OF THE DIAPHRAGM, A LIQUID CHAMBER; SAID CASING AND THE CHAMBER BEING FILLED WITH LIQUID, AND BEING IN COMMUNICATION WITH EACH OTHER; THE NORMAL POSITION OF THE MOTOR IN USE BEING SUCH THAT THE LIQUID CHAMBER IS BELOW THE MOTOR; AND THE SPACE IN THE EXTENSION IS DISPOSED BETWEEN THE MOTOR AND THE CHAMBER, AND IS NORMALLY FILLED WITH THE LIQUID IN WHICH THE MOTOR IS SUBMERGED.
Claim 2
Dependent Claim
117 words
IN A SUBMERSIBLE ELECTRIC MOTOR: A CASING FOR THE MOTOR; SAID CASING HAVING AN END WALL; AN EXTENSION ATTACHED AT ONE END TO THE EXTENSION; SAID EXTENSION HAVING AN OPENING TO VENT THE INTERIOR OF THE EXTENSION TO THE EXTERIOR OF THE CASING; AND MEANS FORMING WITH THE OUTER SURFACE OF THE DIAPHRAGM, A LIQUID CHAMBER; SAID CASING AND THE CHAMBER BEING FILLED WITH LIQUID, AND BEING IN COMMUNICATION WITH EACH OTHER; THE NORMAL POSITION OF THE MOTOR IN USE BEING SUCH THAT THE LIQUID CHAMBER IS BELOW THE MOTOR; AND THE SPACE IN THE EXTENSION IS DISPOSED BETWEEN THE MOTOR AND THE CHAMBER, AND IS NORMALLY FILLED WITH THE LIQUID IN WHICH THE MOTOR IS SUBMERGED.
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) | 1966-01-07 | 1966-07-09 | 1967-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-07 | 1970-07-09 | 1971-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-07 | 1974-07-09 | 1975-01-08 | $7700.00 | Window Closed / Lapsed |