US2786006A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making a laminated core
Assignee: General Electric Co
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Filing: 1955-07-25
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Granted: 1957-03-19
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Expires: 1975-07-25
Abstract
No abstract record available.
Inventors
- 👤 Harold L Ferverda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:21
CPC Classifications
H; H01; H01F; H01F41/00; H01F41/02; H01F41/0206; H01F41/0233; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/4902; Y10T29/49075; Y10T29/49078
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
95 words
A METHOD OF MAKING CORES FOR ELECTRICAL APPARATUS COMPRISING THE STEPS OF PASSING INDIVIDUAL LAMINATIONS CONNECTED TO THE POSITIVE SIDE OF A SOURCE OF DIRECT CURTENT POWER THROUGH AN ELECTOSTATIC FIELD AND INTRODUCING SOLID PARTICLES OF INSULATING AND BONDING RESIN INTO THE FIELD THEREBY TO COAT SAID LAMINATIONS, HEATING EACH LAMINATION SO AS TO MELT THE PARTICLES TOGETHER, COOLING THE LAMINATION SO THAT THE RESIN FORMS A SOLID COATING, STACKING SAID LAMINATIONS TO A PREDETERMINED HEIGHT TO FORM A CORE, AND HEATING THE STACKED LAMINATIONS TO REMELT SAID RESIN THEREBY TO BOND SAID LAMINATIONS TOGETHER.
Claim 2
Independent Claim
95 words
A METHOD OF MAKING CORES FOR ELECTRICAL APPARATUS COMPRISING THE STEPS OF PASSING INDIVIDUAL LAMINATIONS CONNECTED TO THE POSITIVE SIDE OF A SOURCE OF DIRECT CURTENT POWER THROUGH AN ELECTOSTATIC FIELD AND INTRODUCING SOLID PARTICLES OF INSULATING AND BONDING RESIN INTO THE FIELD THEREBY TO COAT SAID LAMINATIONS, HEATING EACH LAMINATION SO AS TO MELT THE PARTICLES TOGETHER, COOLING THE LAMINATION SO THAT THE RESIN FORMS A SOLID COATING, STACKING SAID LAMINATIONS TO A PREDETERMINED HEIGHT TO FORM A CORE, AND HEATING THE STACKED LAMINATIONS TO REMELT SAID RESIN THEREBY TO BOND SAID LAMINATIONS TOGETHER.
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) | 1960-03-18 | 1960-09-17 | 1961-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-03-18 | 1964-09-17 | 1965-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-03-18 | 1968-09-17 | 1969-03-19 | $7700.00 | Window Closed / Lapsed |