The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 22, 1980
Filed:
Jan. 18, 1978
Stephen B Bogese, II, Roanoke, VA (US);
Virginia Plastics Company, Roanoke, VA (US);
Abstract
A multi-conductor flat transmission cable which includes a plurality of parallel signal conductors each of which is insulated with a low loss, high velocity of propagation material. The insulations surrounding a send and return conductor pair are joined by a homogeneous integrally formed EMF window web formed of the same material as the insulations. The thickness and length of the window webs are selected to control the electromagnetic interference between the conductor pair, as well as the impedance and capacitance. Individual, uninsulated screen conductors may be positioned between adjacent signal conductor pairs to further minimize EMF interference. The insulated signal conductors, their EMF window webs, and the uninsulated screen conductors are encapsulated by an upper and lower outer layer of insulation formed of a material having a velocity of propagation different from the signal conductor's insulations.