US3555383A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Submersible electric motor for tool operation
Assignee: Battelle Development Corp
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Filing: 1968-08-23
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Granted: 1971-01-12
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Expires: 1988-08-23
Abstract
Abstract AN ELECTRIC MOTOR OF THE INDUCTION TYPE CAPACITOR-START CONSTRUCTED TO ALLOW WATER TO FLOW THROUGH THE MOTOR LUBRICATING THE BEARINGS AND A GEAR BOX. THERE IS AN ABSENCE OF DYNAMIC SEALS AND THE WINDINGS OF THE STATOR ARE SEALED IN A POTTING COMPOUND. ELECTRICAL CONDUCTING COMPONENTS ARE SEALED AND POTTED AND A TRIP CIRCUIT IS INCLUDED TO SHUT OFF THE ELECTRICAL POWER IF THERE IS ANY CURRENT FROM THE HIGH VOLTAGE LINES THAT MIGHT ENDANGER THE OPERATOR. TWO OUTPUT SHAFTS ARE INCLUDED AND THEY ROTATE AT DIFFERENT SPEEDS BEING CONNECTED TO THE MOTOR SHAFT THROUGH THE GEAR BOX. THERE IS A REVERSING SWITCH TO PROVIDE FOR ROTATING A TOOL CLOCKWISE OR COUNTERCLOCKWISE.
Inventors
- 👤 Donald J Hackman
- 👤 Jeremy M Harris
- 👤 Ronald L Legue
- 👤 Donald E Roop
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 06:43
CPC Classifications
H; H02; H02K; H02K5/00; H02K5/04; H02K5/12; H02K5/132; H02K17/00; H02K17/02; H02K17/30; H02K7/00; H02K7/14; H02K7/145
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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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) | 1974-01-11 | 1974-07-13 | 1975-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-11 | 1978-07-13 | 1979-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-11 | 1982-07-13 | 1983-01-12 | $7700.00 | Window Closed / Lapsed |