US3378709A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric motor construction including impeller cavity
Assignee: Emerson Electric Co
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Filing: 1965-06-30
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Granted: 1968-04-16
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Expires: 1985-06-30
Abstract
No abstract record available.
Inventors
- 👤 Neal B Royer
- 👤 Clinton H Dederick
- 👤 John G Lewis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:46
CPC Classifications
H; H02; H02K; H02K15/00; H02K15/16; H02K7/00; H02K7/08; H02K7/083
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
105 words
AN END SHIELD FOR AN ELECTRIC MOTOR COMPRISING AN END WALL HAVING A FLAT MOUNTING SURFACE ON ONE SIDE THEREOF, A PLURALITY OF CIRCULARLY ARRANGED INTEGRAL LEG PORTIONS PROJECTING FROM THE OTHER SIDE THEREOF FOR ATTACHMENT TO A MOTOR STATOR, A CENTRAL INTEGRAL BOSS PROJECTING FROM SAID OTHER SIDE OF SAID END WALL TO A LESSER EXTENT THAN SAID LEG PORTIONS, A LONGITUDINAL BORE THROUGH SAID BOSS AND A MOTOR SHAFT BEARING FITTED IN SAID BORE NEAR THE PROJECTING END OF SAID BOSS, AND AN IMPELLER CAVITY FORMED IN SAID BOSS CONCENTRIC WITH SAID BEARING AND ENTERING FROM SAID ONE SIDE OF SAID END WALL.
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) | 1971-04-16 | 1971-10-16 | 1972-04-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-16 | 1975-10-16 | 1976-04-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-16 | 1979-10-16 | 1980-04-16 | $7700.00 | Window Closed / Lapsed |