Apparatus and method for pulling cable
US5664765A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 18, 1996 |
| Grant date | Sep 9, 1997 |
| Priority date | — |
| Expiry date | Apr 18, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02G1/08
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A primary device placed at the upstream end of a duct and a relay device placed at an access point pull a cable through respective duct segments. The pulling speed of the primary device is controlled by an operator. The pulling speed of the relay device is variable in response to movement of the cable by the primary device to maintain equilibrium between the pulling speeds of the devices. The pulling tension exerted upon the cable by each device is monitored and discontinued upon reaching a predetermined maximum value. At the inlet to the second segment, lubricant is supplied to the cable at a quantitative rate which is proportional to the pulling speed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.