GB1158734A - Laminated Core Inductive Devices - Google Patents
Laminated Core Inductive DevicesInfo
- Publication number
- GB1158734A GB1158734A GB56057/66A GB5605766A GB1158734A GB 1158734 A GB1158734 A GB 1158734A GB 56057/66 A GB56057/66 A GB 56057/66A GB 5605766 A GB5605766 A GB 5605766A GB 1158734 A GB1158734 A GB 1158734A
- Authority
- GB
- United Kingdom
- Prior art keywords
- zone
- strips
- core
- dec
- laminated core
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F38/00—Adaptations of transformers or inductances for specific applications or functions
- H01F38/08—High-leakage transformers or inductances
- H01F38/10—Ballasts, e.g. for discharge lamps
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Circuit Arrangements For Discharge Lamps (AREA)
- Coils Of Transformers For General Uses (AREA)
Abstract
1,158,734. Transformers and inductors. SYLVANIA ELECTRIC PRODUCTS, Inc. 14 Dec.. 1966 [30 Dec., 1965], No. 56057/66. Heading H1T. An inductive device, such as a ballast transformer for fluorescent lamps, comprises a plurality of coils mounted on a generally rectangular core composed of two laminated U-shaped sections 12, 13 secured together by a fused joint 22 between the outer strips 1, 6 while the inner strips are held together by welds 14 and are staggered to interleave over a particular zone 17, at least one strip being cut short to define an air gap G lying outside the zone. Magnetic shunt strips 23 are located either side of the core across the legs 16 and coextensive with the inter-leaving zone, being spaced from the core laminations by insulating sheets (26), (Fig. 1, not shown) and secured by a bolt 24.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US517649A US3344383A (en) | 1965-12-30 | 1965-12-30 | Core portions having fused bond joint outside of embrace of coils thereon |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1158734A true GB1158734A (en) | 1969-07-16 |
Family
ID=24060657
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB56057/66A Expired GB1158734A (en) | 1965-12-30 | 1966-12-14 | Laminated Core Inductive Devices |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US3344383A (en) |
| GB (1) | GB1158734A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL6717462A (en) * | 1967-12-21 | 1969-06-24 | ||
| US3835430A (en) * | 1968-09-20 | 1974-09-10 | Transelektro Magyar Villamossa | Tubular core electric transformer |
| US3996543A (en) * | 1976-02-04 | 1976-12-07 | Westinghouse Electric Corporation | Current transformer |
| DE2914447C2 (en) * | 1979-04-10 | 1982-04-22 | Philips Patentverwaltung Gmbh, 2000 Hamburg | Cut band core transformer with one or more bobbins |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2350029A (en) * | 1940-07-22 | 1944-05-30 | Maxwell Bilofsky | Inductive core |
| US2550501A (en) * | 1949-12-31 | 1951-04-24 | Gen Electric | Gap bridging lamination for noise reduction in magnetic structures |
| US2930997A (en) * | 1954-08-11 | 1960-03-29 | Gen Electric | Magnetic core construction |
| US3128443A (en) * | 1958-08-06 | 1964-04-07 | Gen Electric | Reactive transformers |
| US3278878A (en) * | 1964-01-27 | 1966-10-11 | Sylvania Electric Prod | Leakage reactance transformer |
-
1965
- 1965-12-30 US US517649A patent/US3344383A/en not_active Expired - Lifetime
-
1966
- 1966-12-14 GB GB56057/66A patent/GB1158734A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US3344383A (en) | 1967-09-26 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |