Patent US3382573A successfully refreshed from Google Patents.
US3382573A
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Method of assembly by electric welding of stacks of laminations for the stators of rotary electric machines
Assignee: Moulinex SA
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Filing: 1964-04-29
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Granted: 1968-05-14
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Expires: 1984-04-29
Abstract
No abstract record available.
Inventors
- 👤 Mantelet Jean
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:36
CPC Classifications
B; B23; B23K; B23K33/00; H; H02; H02K; H02K1/00; H02K1/06; H02K1/12; H02K1/14; H02K1/146; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49009; Y10T29/49012; Y10T29/4902; Y10T29/49075; Y10T29/49078
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
134 words
A METHOD OF PRODUCING A STACKED PART OF A ROTARY ELECTRIC MACHINE, COMPRISING ASSEMBLING A STACKING OF LAMINATIONS OF MAGNETIC METAL OF WHICH EACH LAMINATION HAS AN OUTSTANDING PERIPHERAL TOOTH HAVING A RECTILINEAR TOP AND A ROOT NARROWER THAN SAID TOP WITH SAID LAMINATION IN CONTACT WITH EACH OTHER AND SAID TEETH ALIGNED TO PROVIDE AT LEAST ONE CONTINUOUS RIB SPANNING THE STACK AND HAVING AN ENLARGED FLAT TOP AND A NARROWER BASE, COMPLETING AN ELECTRIC CIRCUIT THROUGH SAID STACK BY MEANS INCLUDING AN ELECTRODE THAT RESTS FLAT ON SAID ENLARGED FLAT TOP TO SOFTEN SAID NARROWER BASE BY ELECTRIC RESISTANCE HEATING, AND PRESSING SAID ELECTRODE AGAINST SAID RIB TO MASH SAID NARROWER BASE AND PRESS SAID ENLARGED FLAT TOP CLOSER TO THE REST OF SAID STACK AND TO WELD TOGETHER THE ADJACENT LAMINATIONS
Claim 2
Independent Claim
134 words
A METHOD OF PRODUCING A STACKED PART OF A ROTARY ELECTRIC MACHINE, COMPRISING ASSEMBLING A STACKING OF LAMINATIONS OF MAGNETIC METAL OF WHICH EACH LAMINATION HAS AN OUTSTANDING PERIPHERAL TOOTH HAVING A RECTILINEAR TOP AND A ROOT NARROWER THAN SAID TOP WITH SAID LAMINATION IN CONTACT WITH EACH OTHER AND SAID TEETH ALIGNED TO PROVIDE AT LEAST ONE CONTINUOUS RIB SPANNING THE STACK AND HAVING AN ENLARGED FLAT TOP AND A NARROWER BASE, COMPLETING AN ELECTRIC CIRCUIT THROUGH SAID STACK BY MEANS INCLUDING AN ELECTRODE THAT RESTS FLAT ON SAID ENLARGED FLAT TOP TO SOFTEN SAID NARROWER BASE BY ELECTRIC RESISTANCE HEATING, AND PRESSING SAID ELECTRODE AGAINST SAID RIB TO MASH SAID NARROWER BASE AND PRESS SAID ENLARGED FLAT TOP CLOSER TO THE REST OF SAID STACK AND TO WELD TOGETHER THE ADJACENT LAMINATIONS
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) | 1971-05-14 | 1971-11-13 | 1972-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-05-14 | 1975-11-13 | 1976-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-05-14 | 1979-11-13 | 1980-05-14 | $7700.00 | Window Closed / Lapsed |