US3781741A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transformer assembly
Assignee: Individual
•
Filing: 1973-06-18
•
Granted: 1973-12-25
•
Expires: 1993-06-18
Abstract
Abstract A transformer assembly having a plurality of annular shaped coil chambers and adapted to receive ferromagnetic laminations and coils has a pair of insulating caps each of which includes a plurality of integrally-formed annular ribs. The annular ribs are disposed concentrically on and perpendicular to the front wall of each of the caps so as to define a plurality of concentric hollow coil chambers. Each of the chambers has a substantially rectangular cross-section. A plurality of coil sleeves is provided each having a different cross section so as to correspond with each of the ribs. Each of the coil sleeves includes end flanges and a shoulder complementary with the respective rib. The front wall of at least one cap contains apertures as directed to the connecting flange side of the respective coil chamber. The connecting flange side bears overlapping teeth. Electrical connection means are disposed along the outside portion of each of the caps providing a means for electrical connection to the coil windings. The ribs are placed so as to seat along the shoulders of the sleeves thereby defining a plurality of closed coil chambers and included in a coil space devoid of any ribs.
Inventors
- 👤 N Weiner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:55
CPC Classifications
H; H01; H01F; H01F27/00; H01F27/40; H01F27/28; H01F27/32; H01F27/324; H01F27/325; H01F5/00; H01F5/02; H01F2005/025; H01F27/408
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
165 words
A coil body assembly having a plurality of annular shaped coil chambers and adapted to receive ferromagnetic laminations and coils comprising: a pair of insulating caps each of which includes a plurality of integrally formed annular ribs, said ribs disposed concentrically on and perpendicular to the front wall of each of said caps so as to define a plurality of concentric hollow coil chambers each of the chambers having a substantially rectangular cross section; a plurality of coil sleeves each having a different cross section so as to be corresponding with each of said ribs, each of said sleeves including end flanges and shoulders complementary with said ribs; and electrical connection means disposed along the outside portion of at least one of said caps providing a means for electrical connection to the coil windings, said cap ribs being placed so as to seat along the shoulders and thereby define a plurality of closed coil chambers and an included inner coil space devoid of said ribs.
Claim 2
Dependent Claim
165 words
A coil body assembly having a plurality of annular shaped coil chambers and adapted to receive ferromagnetic laminations and coils comprising: a pair of insulating caps each of which includes a plurality of integrally formed annular ribs, said ribs disposed concentrically on and perpendicular to the front wall of each of said caps so as to define a plurality of concentric hollow coil chambers each of the chambers having a substantially rectangular cross section; a plurality of coil sleeves each having a different cross section so as to be corresponding with each of said ribs, each of said sleeves including end flanges and shoulders complementary with said ribs; and electrical connection means disposed along the outside portion of at least one of said caps providing a means for electrical connection to the coil windings, said cap ribs being placed so as to seat along the shoulders and thereby define a plurality of closed coil chambers and an included inner coil space devoid of said ribs.
Claim 3
Dependent Claim
43 words
The coil body as in claim 1 wherein the thickness of said ribs and the sleeve shoulders are approximately half the thickness of said coil sleeve so that each of said ribs mate with said complementary coil sleeve without discontinuity of cross section.
Claim 4
Dependent Claim
43 words
The coil body as in claim 2 further including an insulating plate disposed substantially perpendicular to and placed on each of said insulating caps, and plates oppositely directed from said plurality of said ribs so as to receive and confine the ferromagnetic laminations.
Claim 5
Dependent Claim
48 words
The coil body as in claim 3 wherein said electrical connection means includes a plurality of conductive connecting pins disposed on each of said caps and perpendicular to said plates, and having a substantially equal number of said pins disposed on each one of said insulating cap plates.
Claim 6
Dependent Claim
44 words
The coil body as in claim 2 wherein one of the insulating caps further includes a pair of parallel spaced-apart insulating plates for receiving and confining the ferromagnetic laminations therebetween, said plates disposed perpendicular to said insulating cap and oppositely directed from said ribs.
Claim 7
Dependent Claim
62 words
The coil body as in claim 5 wherein said electrical connection means comprises a plurality of outer flanges disposed on the outer rim of one cap and in parallel alignment to of said insUlating plates, and wherein said electrical connection means includes electrical connection pins disposed in and supported by said flanges, said pins being disposed substantially parallel to said insulating plates.
Claim 8
Dependent Claim
31 words
The coil body as in claim 6 wherein said insulating cap containing said insulating plates further includes a plurality of apertures provided therethrough allowing access to each of the coil chambers.
Claim 9
Dependent Claim
24 words
The coil body as in claim 4 wherein said insulating cap includes a plurality of apertures providing access to each of the coil chambers.
Claim 10
Dependent Claim
45 words
The coil body as in claim 2 wherein one of said insulating caps includes an integrally formed insulating end ring disposed on bushing portion, said insulating end ring flaring slightly outwardly so as to partially cover said complimentary bushing portion of said other insulating cap.
Claim 11
Dependent Claim
30 words
The coil body as in claim 7 wherein said coil sleeve bears on one side of one end flange teeth disposed perpendicular to said flange and extending through the apertures.
References Cited (Backward Citations)
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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) | 1976-12-24 | 1977-06-25 | 1977-12-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-24 | 1981-06-25 | 1981-12-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-24 | 1985-06-25 | 1985-12-25 | $7700.00 | Window Closed / Lapsed |