US 12,444,519 B2
Electrical cable with dielectric film
Dalibor Jan Smejtek, Portland, OR (US)
Assigned to Swift Bridge Technologies (M) SDN BHD, Penang (MY)
Filed by Swift Bridge Technologies (M) Sdn Bhd, Penang (MY)
Filed on Nov. 21, 2023, as Appl. No. 18/516,172.
Prior Publication US 2024/0087768 A1, Mar. 14, 2024
Int. Cl. H01B 3/44 (2006.01); H01B 13/016 (2006.01)
CPC H01B 3/441 (2013.01) [H01B 13/016 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A cable comprising:
an inner conductor;
a dielectric layer extending around the inner conductor, the dielectric layer comprising a bi-directionally stretched polypropylene film having a porous structure that includes a plurality of pores that extend through a thickness of the bi-directionally stretched polypropylene film, the dielectric layer comprising air molecules trapped within the pores of the bi-directionally stretched polypropylene film such that the dielectric layer comprises polypropylene and air; and
an outer conductor extending around the dielectric layer.