Lift assist for a truss
US10689924B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 31, 2019 |
| Grant date | Jun 23, 2020 |
| Priority date | — |
| Expiry date | Jan 31, 2039 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB62D63/06
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
Aspects of the disclosure relate to a trailer having a frame suitable for transporting an item, such as an oil drilling pipe. The trailer includes a boom which may be raised from the trailer and support cables used to move the pipe from the trailer to a storage or other location. The boom is raised and lowered by a hydraulic system comprising a primary cylinder and a secondary cylinder, each of which is attached to a lift assist assembly. The lift assist assembly provides greater leverage than would otherwise be available for the maximum size and weight of the load available for a given (fixed) maximum length of trailer. In this manner, the boom can be raised to greater heights, while maintaining horizontal distance, than otherwise. The lift assist assembly may be incorporated into an original manufacture or added in a retrofit application. Methods of use are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.