专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

GB888370A Improvements in or relating to the insulation of electrical coils 未知
公开(公告)号：GB888370A
公开(公告)日：1962-01-31
申请号：GB239158
申请日：1958-01-24
申请人： J R FERGUSON ELECTRICAL ENGINE , JOHN ROBERT FERGUSON , RONALD JOYCELIN MALES
IPC分类号： H01F38/30
摘要： 888,370. Electric coils; transformers. FERGUSON (ELECTRICAL ENGINEERS) Ltd., J. R., FERGUSON, J. R., and MOLES, R. J. Jan. 19, 1959 [Jan. 24, 1958], No. 2391/58. Classes 35 and 38 (2). To allow for thermal movement of a coil 1, e.g. an overload or current transformer primary coil, it is loosely encased, first in a thin shell of insulating material 4 and then in a resinous material 6, leaving an air space 7. The shell 4 is of resin-bonded glass fibre, made in two preformed V-shaped halves cemented or riveted together and the resin 6 is applied by moulding. The coil may be of copper or aluminium strip or foil.

2. 发明专利

GB895984A Improvements in or relating to moulded electrical insulation 未知
公开(公告)号：GB895984A
公开(公告)日：1962-05-09
申请号：GB2015559
申请日：1959-06-12
申请人： J R FERGUSON ELECTRICAL ENGINE , JOHN ROBERT FERGUSON , RONALD JOCELIN MALES
IPC分类号： H01B3/00 , H01B17/28 , H01B17/44
摘要： 895,984. Moulding electrical insulation. FERGUSON (ELECTRICAL ENGINEERS) Ltd., J. R., FERGUSON, J. R., and MALES, R. J. May 25, 1960 [June 12, 1959], No. 20155/59. Class 87(2). An electrical stress distribution or controlling layer is included in electrical insulation of circular cross section e.g. in an electrical bushing by embedding the layer in insulating resin during moulding, the layer being of such form as to allow contraction in the radial dimension when the resin shrinks during curing. A stress distributing layer 12 comprises a wrapped-round sheet with overlapping ends 13 which allows contraction of the layer with the resin. The layer is located in the mould by pre-formed mouldings and upper and lower ends 14 of the layer are rolled over at 14 to avoid having an edge at a point of electrical stress. In the embodiment of Figs. 3 and 4 (not shown) a gap is left between adjacent edges of the sheet; said gap being closed when the resin shrinks, and in the embodiments of Figs. 5 and 6 (not shown), the layer is of wire gauze, perforated metal, or knitted metallic braid. The insulation may be of bell-mouth construction and graded layers may be arranged one within the other in the resin of the insulator.

3. 发明专利

CA648905A MOULDED ELECTRICAL INSULATION 未知
公开(公告)号：CA648905A
公开(公告)日：1962-09-18
申请号：CA648905D
申请人： J R FERGUSON ELECTRICAL ENGINE , FERGUSON JOHN R , MALES RONALD J
发明人： MALES RONALD J , FERGUSON JOHN R

4. 发明专利

CH367222A Corps isolant 未知
公开(公告)号：CH367222A
公开(公告)日：1963-02-15
申请号：CH661460
申请日：1960-06-10
申请人： J R FERGUSON ELECTRICAL ENGINE , FERGUSON JOHN ROBERT , MALES RONALD JOCELIN
发明人： JOHN ROBERT FERGUSON , RONALD JOCELIN MALES
IPC分类号： H01B3/00 , H01B17/28 , H01B17/44

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式