METHOD OF LAYING ELECTRICAL CABLE

• US 3,604,215 A
• Filed: 01/20/1970
• Issued: 09/14/1971
• Est. Priority Date: 01/20/1970
• Status: Expired due to Term

• Current Assignee: Cletus M. Dunn
• Original Assignee: Cletus M. Dunn
• Inventors: Dunn, Cletus M.
• Primary Examiner(s): Williamowsky, David J.
• Assistant Examiner(s): Corbin, David H.
• Application Number:
  US05/004,250
• Time in Patent Office: 602 Days
• Field of Search: 61/72.1,72.2,72.4,72.5,72.6 307/147,148
• US Class Current: 405/155
• CPC Class Codes: E02F 5/10 with arrangements for reinforcing trenches or ditches; with arrangements for making or assembling conduits or for laying conduits or cables laying pipes per se F16L1/00, making pipes in situ F16L1/038; laying electric cables per se H02G1/06; drainage device- laying apparatus E02B11/02
• CPC Class Codes: H02G 1/06 for laying cables, e.g. laying apparatus on vehicle

Abstract

Means for and method of laying electrical cable underground and providing a high-conductivity environment therefor, consisting of a cable plow machine plus means to fill the excavated tube in which the cable is laid with a conductive mortar under hydraulic pressure. The latter means include a mixer for mixing the loose soil with a conductive aggregate, cement, water, moistureattracting gel and a water reduction admixture and mud jack means for forcing the mortar into the excavated tube under pressure.

Claims

1. A method for producing an electrically conductive environment for underground cables comprising the steps of:

plowing a tubelike excavation in the earth;

laying a bare, conductive cable in said excavation; and

simultaneously with said cable laying, filling said excavation with a pressurized, electrically conductive, moistureattracting free-flowing mortar, said mortar encasing said bare cable.

2. A method for producing an electrically conductive environment for underground cables comprising the steps of:

plowing a tubelike excavation in the earth;

forming an electrically conductive, moisture-attracting free-flowing mortar including water, moisture-attracting gel, soil and a material having high electrical conductivity;

laying a bare, conductive cable in said excavation; and

simultaneously with said cable laying, filling said excavation with said mortar under pressure.