Patent US3559134A successfully refreshed from Google Patents.
US3559134A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Random wound encapsulated coil construction
Assignee: Westinghouse Electric Corp
•
Filing: 1967-08-08
•
Granted: 1971-01-26
•
Expires: 1987-08-08
Abstract
Abstract A RANDON WINDING IS LOCATED ON A SPOOL HAVING A CENTRAL SUPPORT AND HAVING END FLANGES PROVIDED WITH RIBS OR PERFORATIONS. AN INSULATING MATERIAL IN FLUID FORM SUCH AS AN EPOXY RESIN IS APPLIED UNDER PRESSURE TO THE WINDING AND SPOOL TO FLOW BETWEEN THE RIBS OR THROUGH THE PERFORATIONS TO COMPACT THE WINDING. THIS PROVIDES AS CONTINUOUS LAYER OF THE INSULANT IN CONTACT WITH THE END WINDINGS AND ASSURES GOOD RESISTANCE TO ELECTRIC BREAKDOWN. INSULANT MAY BE INTRODUCED IN A SIMILAR WAY BETWEEN THE CENTRAL SPOOL SUPPORT AND THE WINDING.
Inventors
- 👤 Thomas J Daley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 10:57
CPC Classifications
H; H01; H01F; H01F41/00; H01F41/02; H01F41/04; H01F41/12; H01F41/10; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/4902; Y10T29/49071
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-01-25 | 1974-07-27 | 1975-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-25 | 1978-07-27 | 1979-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-25 | 1982-07-27 | 1983-01-26 | $7700.00 | Window Closed / Lapsed |