Locking and latching system for a telescoping boom
US6601719B2 · kind B2 · utility
Assignees
Inventor
Key dates
| Filing date | Sep 21, 2001 |
| Grant date | Aug 5, 2003 |
| Priority date | — |
| Expiry date | Sep 21, 2021 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB66C23/705
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A locking and latching system for use with a telescoping boom assembly in a crane or other lifting device is provided. The system may include complementary devices for latching and unlocking a selected boom section for telescoping movement relative to a next-adjacent boom section using an extension cylinder. Preferably, the devices are activated in a predetermined sequence using a single motive device. The motive device may include a single cylinder for performing both the locking and latching function. The locking and latching cylinder may be axially aligned with the extension cylinder to create a relatively compact locking and latching system that easily fits within the confines of the innermost boom section in a conventional boom assembly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.