US3028266A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for impregnating motor windings and motor stator
Assignee: Individual
•
Filing: 1957-11-04
•
Granted: 1962-04-03
•
Expires: 1977-11-04
Abstract
No abstract record available.
Inventors
- 👤 Everett P Larsh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:29
CPC Classifications
H; H02; H02K; H02K15/00; H02K15/12; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2922; Y10T428/2925
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
184 words
AN APPARATUS FOR TREATING ELECTRIC MOTOR STATORS TO IMPREGNATE AND COAT WINDINGS THEREON WHICH COMPRISES; MEMBERS OPERABLE FOR SEALINGLY ENGAGING OPPOSITE ENDS OF A WOUND ELECTRIC MOTOR STATOR, AN EXPANSIBLE BAG CARRIED BY ONE OF SAID MEMBERS ADAPTED FOR SEALINGLY ENGAGING THE BORE IN THE ENTIRE LENGTH OF THE STATOR WHEN INFLATED, A SUPPLY OF ELECTRIC INSULATING VARNISH AND SOLID INSULATING MATERIAL ENTRAINED THEREIN, MEANS FOR PUMPING THE VARNISH AND THE MATERIAL ENTRAINED THEREIN FROM SAID SOURCE INTO ONE OF SAID MEMBERS AND THROUGH SAID WINDINGS UNDER PRESSURE INTO THE OTHER MEMBER AND THENCE BACK TO SAID SUPPLY THEREBY TO IMPREGNATE AND COAT THE WINDINGS WITH THE VARNISH AND TO COAT THE OUTER PARTS OF THE WINDINGS WITH THE SOLID MATERIAL, AND MEANS OPERABLE FOLLOWING THE IMPREGNATING AND COATING FOR CIRCULATING HEATED GASES OVER THE WINDINGS TO SET THE VARNISH AND FIX THE COATING IN PLACE, SAID MEMBERS COMPRISING PARTITION MEANS THEREIN ENGAGING THE ENDS OF THE STATOR BETWEEN WINDINGS THEREON AND DEFINING CAVITIES TO WHICH SAID VARNISH AND ENTRAINED SOLID MATERIALS ARE SUPPLIED WHEREBY PORTIONS OF THE STATOR NOT HAVING WINDINGS CAN BE
Claim 2
Independent Claim
184 words
AN APPARATUS FOR TREATING ELECTRIC MOTOR STATORS TO IMPREGNATE AND COAT WINDINGS THEREON WHICH COMPRISES; MEMBERS OPERABLE FOR SEALINGLY ENGAGING OPPOSITE ENDS OF A WOUND ELECTRIC MOTOR STATOR, AN EXPANSIBLE BAG CARRIED BY ONE OF SAID MEMBERS ADAPTED FOR SEALINGLY ENGAGING THE BORE IN THE ENTIRE LENGTH OF THE STATOR WHEN INFLATED, A SUPPLY OF ELECTRIC INSULATING VARNISH AND SOLID INSULATING MATERIAL ENTRAINED THEREIN, MEANS FOR PUMPING THE VARNISH AND THE MATERIAL ENTRAINED THEREIN FROM SAID SOURCE INTO ONE OF SAID MEMBERS AND THROUGH SAID WINDINGS UNDER PRESSURE INTO THE OTHER MEMBER AND THENCE BACK TO SAID SUPPLY THEREBY TO IMPREGNATE AND COAT THE WINDINGS WITH THE VARNISH AND TO COAT THE OUTER PARTS OF THE WINDINGS WITH THE SOLID MATERIAL, AND MEANS OPERABLE FOLLOWING THE IMPREGNATING AND COATING FOR CIRCULATING HEATED GASES OVER THE WINDINGS TO SET THE VARNISH AND FIX THE COATING IN PLACE, SAID MEMBERS COMPRISING PARTITION MEANS THEREIN ENGAGING THE ENDS OF THE STATOR BETWEEN WINDINGS THEREON AND DEFINING CAVITIES TO WHICH SAID VARNISH AND ENTRAINED SOLID MATERIALS ARE SUPPLIED WHEREBY PORTIONS OF THE STATOR NOT HAVING WINDINGS CAN BE
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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) | 1965-04-02 | 1965-10-02 | 1966-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-02 | 1969-10-02 | 1970-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-02 | 1973-10-02 | 1974-04-03 | $7700.00 | Window Closed / Lapsed |