EP 0382359 A1 19900816 - Method for making a mineral-insulated cable.
Title (en)
Method for making a mineral-insulated cable.
Title (de)
Verfahren zur Herstellung eines mineralisolierten Kabels.
Title (fr)
Procédé pour fabriquer un cable isolé par une matière minérale.
Publication
Application
Priority
- GB 8901911 A 19890128
- GB 8927533 A 19891206
Abstract (en)
Blocks (60, 65) of magnesium oxide or other mineral insulant are formed with grooves (62). Copper conductors (63) are laid in the grooves (62) and the blocks (60, 65) are held in place on the conductors (63) by a layer of insulating tape (66). A copper tube (68) is formed around the layer (66), and the whole is then subjected to alternating steps of drawing or rolling and annealing to form a mineral insulated cable.
IPC 1-7
IPC 8 full level
H01B 7/16 (2006.01); H01B 13/004 (2006.01); H01B 13/06 (2006.01); H01B 13/18 (2006.01); H05B 3/52 (2006.01)
CPC (source: EP)
H01B 13/004 (2013.01); H05B 3/52 (2013.01)
Citation (search report)
- [X] US 3452434 A 19690701 - WAGELE ROLF
- [Y] FR 2462771 A1 19810213 - OKAZAKI MFG CO LTD [JP]
- [X] DE 708904 C 19410731 - SIEMENS AG
- [Y] GB 650427 A 19510221 - STANDARD TELEPHONES CABLES LTD
- [X] DE 912949 C 19540608 - SIEMENS AG
- [X] DE 3137956 A1 19830428 - HANF LOTHAR
- [A] US 4317003 A 19820223 - GRAY STANLEY J
Designated contracting state (EPC)
AT BE CH DE DK ES FR GB GR IT LI LU NL SE
DOCDB simple family (publication)
EP 0382359 A1 19900816; EP 0382359 B1 19930324; AT E87393 T1 19930415; AU 4884290 A 19900802; AU 615372 B2 19910926; CA 2008682 A1 19900728; CA 2008682 C 19981229; DE 69001142 D1 19930429; DE 69001142 T2 19930812; DK 0382359 T3 19930419; ES 2040554 T3 19931016; HK 76993 A 19930806; IE 62978 B1 19950308; IE 900324 L 19900728; JP H02270226 A 19901105; NO 900386 D0 19900126; NO 900386 L 19900730; NZ 232262 A 19911223; SG 66193 G 19930806
DOCDB simple family (application)
EP 90300604 A 19900122; AT 90300604 T 19900122; AU 4884290 A 19900125; CA 2008682 A 19900126; DE 69001142 T 19900122; DK 90300604 T 19900122; ES 90300604 T 19900122; HK 76993 A 19930729; IE 32490 A 19900129; JP 1764690 A 19900126; NO 900386 A 19900126; NZ 23226290 A 19900126; SG 66193 A 19930520