Roll of wound conduit tubing with prethreaded pull line
US4529148A · kind A · utility
15Cited by
12References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 13, 1984 |
| Grant date | Jul 16, 1985 |
| Priority date | — |
| Expiry date | Feb 13, 2004 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/20486
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An apparatus for facilitating field installation of electrical conduit and fiber optic lines in a conduit and a method of providing pull line in such apparatus. A roll of wound conduit tubing having a length of over 700 feet is provided with a pull line extending through the entire length of the wound tubing. The pull line has a tensile strength of about 45 pounds such that it will have sufficient strength to accomplish field pulling operations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.