EP 0582013 A3 19940413 -
Publication
Application
Priority
US 72758991 A 19910709
Abstract (en)
[origin: EP0582013A2] An improved method for making a flexible coaxial cable having an inner conductor (36) to which a dielectric material is secured to form a dielectric core (30) for the coaxial cable (38), and a flexible outer conductor (50) such as one formed from a strip helically wound conductor (58), employs a solid dielectric starting material (32), such as a spline dielectric or a cylindrical dieletric or an expanded dielectric, which is controllably cut, such as by saw blades (34), using a desired cutting angle ( theta ) and blade width ( alpha ), in order to cut away a predetermined amount of the solid dielectric starting material (32) to provide a shaped dielectric core (30), such as a spiral or helix (30a, 30b), from the solid dielectric starting material (32). The resulting core (30), such as single or double helix (30a, 30b), which has a predetermined pitch which provides a desired predetermined velocity of propagation and impedance for the coaxial cable (38), is inserted into the convoluted outer conductor (50) to produce a fast cable (38) without any locking of the core (30) to the outer conductor (50). <IMAGE>
IPC 1-7
IPC 8 full level
H01B 13/20 (2006.01)
CPC (source: EP)
H01B 13/206 (2013.01); H01B 13/208 (2013.01)
Citation (search report)
- [A] US 2599857 A 19520610 - CHARLES MILDNER RAYMOND
- [A] CH 438695 A 19670630 - LITTLE INC A [US]
- [A] DE 2905387 A1 19790906 - OBERSPREE KABELWERKE VEB K
- [A] GB 616303 A 19490119 - TELEGRAPH CONSTR & MAIN CO, et al
- [A] US 4758685 A 19880719 - POTE WILLIAM [US], et al
Designated contracting state (EPC)
DE FR GB IT NL SE
DOCDB simple family (publication)
EP 0582013 A2 19940209; EP 0582013 A3 19940413; EP 0582013 B1 19990512; DE 69229172 D1 19990617
DOCDB simple family (application)
EP 92401998 A 19920709; DE 69229172 T 19920709