Snatch block
US5249543A · kind A · utility
15Cited by
2References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 20, 1992 |
| Grant date | Oct 5, 1993 |
| Priority date | — |
| Expiry date | Aug 20, 2012 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB63H9/10
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A snatch block which may be opened to receive a line has a sheave assembly and a pair of sideplates on the sides of the sheave assembly, as well as a head connecting the sideplates. One of the sideplates and sheave is hinged from the head and can pivot toward and away from the other sideplate. A spring loaded plunger is carried by the sheave and engages an aperture in the other sideplate to lock the assembly. The plunger is pushed by a lever in the other direction to open the block.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.