Pin changing device and method
US8438713B2 · kind B2 · utility
1Cited by
19References
3Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 6, 2012 |
| Grant date | May 14, 2013 |
| Priority date | — |
| Expiry date | Apr 6, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/53978
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A pin removal assembly for use with an upper block of a crane includes a sheave support and a pin support. The upper block includes a frame, a plurality of sheaves, and a removable sheave pin that defines and axis of rotation for the sheaves and supports the sheaves within the frame. The pin removal assembly includes a sheave support mountable to the frame of the upper block and a pin support mountable to the frame of the upper block. The pin support is configured to support the sheave pin when the sheave pin is removed from the upper block.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.