Handle operated wire puller
US4801127A · kind A · utility
Inventor
Key dates
| Filing date | Mar 23, 1987 |
| Grant date | Jan 31, 1989 |
| Priority date | — |
| Expiry date | Mar 23, 2007 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02G1/08
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A lightweight, portable device for pulling a plurality of relatively small wires through a conduit by the use of a rope attached thereto, without using a winch or necessitating the use of external power. This device comprises an elongate frame particularly adapted for use in a substantially upright position and having lower and upper ends, with a pivotally mounted operating lever operatively located adjacent a middle portion of the frame. At least one force-reacting component is utilized on the frame, over which the rope used with the device passes, for changing the direction of pull of the rope. Importantly, rope clamping means are utilized on the operaing lever for releasably grasping successive portions of the rope during the pulling process, and the operating lever is movable by one or more operators about its pivot point from a position in which it resides in a plane substantially parallel to and closely adjacent the plane of said elongate frame, to a position in which it resides at approximately right angles to the plane of the frame. Each such movement of the operating lever serves to cause several feet of rope to move with respect to the force-reacting component that serves…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.