US 12,191,050 B2Granted

Waterproof drop cable

AssigneePpc Broadband, Inc.

InventorRoger Mathews

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Abstract

A coaxial cable may include a center conductor; a dielectric insulator configured to surround the center conductor; an inner conductive foil layer configured to surround the dielectric; a braided shield layer configured to surround the inner conductive foil layer; and an outer jacket configured to surround the outer conductive foil layer. The outer conductive foil layer may be bonded to the outer jacket; the outer conductive foil layer may include a first lateral region, a second lateral region, and a sealant; the first and second lateral regions may be configured to overlap each other; the sealant may be disposed between the first lateral region and the second lateral region to form a sealed joint; and the sealed joint may be configured to prevent moisture from passing the outer conductive foil layer and migrating along the coaxial cable, which may prevent signal loss or coaxial cable connector damage.

Claims24

Dependent claims

A coaxial cable configured to provide enhanced protection from moisture leaks, comprising:

an inner conductor configured to extend along a longitudinal axis;
a dielectric insulator configured to coaxially surround the inner conductor;
an inner conductive foil layer configured to coaxially surround the dielectric insulator;
a braided shield layer configured to coaxially surround the inner conductive foil layer;
an outer conductive foil layer configured to coaxially surround the braided shield layer;
an outer jacket configured to coaxially surround the outer conductive foil layer;
a non-flowing floodant material disposed between the outer conductive foil layer and the outer jacket;
wherein the outer conductive foil layer is bonded to the outer jacket;
wherein the non-flowing floodant material is discontinuous along a length of the outer jacket;
wherein the outer conductive foil layer includes a first lateral region and a second lateral region;
wherein the first lateral region and the second lateral region are configured to overlap each other to form a circumferential mating region of the outer conductive foil layer, and wherein a radially outer surface of the first lateral region faces a radially inner surface of the second lateral region at the mating region;
wherein a sealant is disposed between the radially outer surface of the first lateral region and a radially inner surface of the second lateral region to form a sealed joint portion that is configured to extend longitudinally along an entire length of the outer conductive foil layer;
wherein the sealed joint portion includes first and second opposite circumferential end portions within the circumferential mating region;
wherein an outer surface portion of a non-overlapped portion of the outer conductive foil layer extending from the first lateral region to the second lateral region is free of the sealant;
and
wherein the outer conductive foil layer, the non-flowing floodant material, and the sealed joint portion are collectively configured to prevent moisture that enters the outer jacket from passing the outer conductive foil layer and migrating along the coaxial cable so as to prevent signal loss or damage to a connector that terminates the coaxial cable.

13 more elements

A coaxial cable configured to provide enhanced protection from moisture leaks, comprising:

a braided shield portion configured to encircle an inner conductive foil portion;
an outer jacket portion;
a sealed outer conductive foil portion bonded to the outer jacket and configured to encircle the braided shield portion;
wherein the outer jacket portion is configured to encircle the outer conductive foil portion;
wherein the outer conductive foil portion includes a first lateral portion and a second lateral portion;
wherein the first lateral portion and the second lateral portion are configured to overlap each other to form a circumferential mating portion of the outer conductive foil portion, and wherein a radially outer surface portion of the first lateral portion faces a radially inner surface portion of the second lateral portion at the mating portion;
wherein a sealant is disposed between the radially outer surface portion of the first lateral portion and a radially inner surface portion of the second lateral portion to form a sealed joint portion that is configured to extend longitudinally along a length of the outer conductive foil portion;
wherein the sealed joint portion includes first and second opposite circumferential end portions within the circumferential mating region;
and
wherein the outer conductive foil layer and the sealed joint portion are collectively configured to prevent moisture that enters the outer jacket from passing the outer conductive foil layer so as to prevent signal loss or damage to a connector that terminates the coaxial cable.

7 more elements

A coaxial cable configured to provide enhanced protection from moisture leaks, comprising:

a braided shield portion configured to encircle an inner conductive foil portion;
a sealed outer conductive foil portion configured to encircle the braided shield portion;
wherein the outer conductive foil portion includes a first lateral portion and a second lateral portion;
wherein the first lateral portion and the second lateral portion are configured to overlap each other to form a circumferential mating portion of the outer conductive foil portion, and wherein a radially outer surface portion of the first lateral portion faces a radially inner surface portion of the second lateral portion at the mating portion;
wherein a sealant is disposed between the radially outer surface portion of the first lateral portion and a radially inner surface portion of the second lateral portion to form a sealed joint portion that is configured to extend longitudinally along a length of the outer conductive foil portion;
wherein the sealed joint portion includes first and second opposite circumferential end portions within the circumferential mating region;
and
wherein the outer conductive foil layer and the sealed joint portion are collectively configured to prevent moisture that enters an outer jacket from passing the outer conductive foil layer so as to prevent signal loss or damage to a connector that terminates the coaxial cable.

5 more elements

Dependencies are inferred from the claim text.

Facts

Application: 17/891,960Filed 19 Aug 2022 · us provisional application
Priority: 19 Aug 2021
Published: US 2023/0057567 A123 Feb 2023
Granted: 7 Jan 2025
Term ends: Not estimatedThe source records don’t support an estimate.

Classification7 codes

H01B 7/285
Preventing penetration of fluid , e.g. water or humidity, into conductor or cable: by completely or partially filling interstices in the cable
H01B 11/1895
Coaxial cables; Analogous cables having more than one inner conductor within a common outer conductor: particular features or applications
H01B 7/2825
Preventing penetration of fluid , e.g. water or humidity, into conductor or cable: using a water impermeable sheath
H01B 11/1869
Coaxial cables; Analogous cables having more than one inner conductor within a common outer conductor: construction of the layers on the outer…