Apparatus for pulling a traction cable through an underground pipe
US6086050A · kind A · utility
13Cited by
9References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 10, 1998 |
| Grant date | Jul 11, 2000 |
| Priority date | — |
| Expiry date | Apr 10, 2018 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16L55/1658
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A pulling apparatus includes a frame having a securing stirrup for securing a beam. The beam is provided at one end with a return pulley. Due to the structure of the securing stirrup, the tractive forces are transferred completely to the beam and the frame so that the means for securing the apparatus to the ground can be minimized. Such a design easily allows the beam to be set at an angle when the pipe is off center. The apparatus may also be easily placed in a cable chamber for operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.