Puller
US5419027A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 19, 1993 |
| Grant date | May 30, 1995 |
| Priority date | — |
| Expiry date | May 19, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/5387
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A puller for removing an object from a shaft including first and second collars movable relative to one another along an axis, at least two circumferentially spaced damping jaws pivotally supported at one end to the first collar and having means at the other end for grasping the object, at least two circumferentially spaced links, each of the links being pivotally supported at one end to the second collar and pivotally supported at the other end to an associated clamping jaw, and a drive structure for moving the collars together along the axis away from the shaft. A hydraulic cylinder drive axially adjusts the collars relative to one another to control movement of the clamping jaws. The clamping jaws may include bidirectional claws for selective use, with the collars and links being positionable to permit the axial spacing from the first collar to be selectively less than or greater than the axial spacing between the collars. An axially extending pusher is secured to one of the collars and has an end engageable with an end of the shaft. Either manual or hydraulic cylinder drives, or a combination thereof, biases the pusher relative to the collars for removal of a grasped object fro…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.