Frame-straightening device
US4495789A · kind A · utility
Inventor
Key dates
| Filing date | Oct 18, 1982 |
| Grant date | Jan 29, 1985 |
| Priority date | — |
| Expiry date | Oct 18, 2002 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S72/705
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A device for use with a hydraulic cylinder or like for straightening frame members, which converts the extension stroke of the cylinder to a pulling action. The device has a pair of interengaging outer members which are formed to define an elongate cage. The interengaging members are slidably connected to one another for relative movement in the direction of the longitudinal axis of the cage. Retaining means are mounted on the interengaging outer members, which are adapted to removably retain a hydraulic cylinder within the cage aligned along the central longitudinal axis, so that extension of the cylinder causes a contraction of the interengaging member along the direction of the longitudinal axis. The interengaging members are adapted at opposite ends for connection to a frame member to be straightened.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.