Process and apparatus for introducing an optical or electrical cable into solid ground
First Claim
1. A process for introducing a cable, which comprises a homogeneous and pressurized-water-tight tube and conductors selected from a group consisting of optical and electrical conductors, into solid ground, said process comprising the steps of heating a ground surface until it softens with a heating unit, forming a channel into the heated ground by displacing the ground material upward onto the surface of the ground to form at least a ridge along one channel border by a channel-forming unit, introducing cable into the formed channel, then reintroducing the displaced ground material into the channel on top of the cable which has been introduced therein by a filling unit, and compacting the ground material which has been reintroduced into the channel with a rolling unit.
2 Assignments
0 Petitions
Accused Products
Abstract
A process and apparatus for introducing a cable into a channel, which is formed into a heated surface of solid ground, such as asphalt, displaces the material to form a channel, inserts the cable and then reintroduces the displaced material back into the channel to refill the channel.
78 Citations
29 Claims
- 1. A process for introducing a cable, which comprises a homogeneous and pressurized-water-tight tube and conductors selected from a group consisting of optical and electrical conductors, into solid ground, said process comprising the steps of heating a ground surface until it softens with a heating unit, forming a channel into the heated ground by displacing the ground material upward onto the surface of the ground to form at least a ridge along one channel border by a channel-forming unit, introducing cable into the formed channel, then reintroducing the displaced ground material into the channel on top of the cable which has been introduced therein by a filling unit, and compacting the ground material which has been reintroduced into the channel with a rolling unit.
- 22. An apparatus for forming a channel and introducing a cable therein, said apparatus comprising means for heating the ground surface in the region of the channel including at least one heating unit, means for forming a channel in the heated ground material, means for drawing off a cable from a cable drum and introducing the cable into a channel and holding the cable therein, means for introducing displaced ground material back into the channel to cover the cable, and means for compacting and closing off the channel with the previously displaced ground material.
Specification