Adjustable spreader bar
US10633223B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 27, 2018 |
| Grant date | Apr 28, 2020 |
| Priority date | — |
| Expiry date | Nov 27, 2038 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB66C1/10
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A spreader bar apparatus provides a bar member having a bar length and first and second bar end portions. A plurality of stops (e.g., transverse bar openings) are spaced between the bar and end portions. A first bar lifting portion or link assembly is movable relative to the bar and into different positions. A second bar lifting portion or link assembly is movable relative to the bar and into different positions. Each bar lifting portion or link assembly has a trunnion sleeve fitted with multiple links. One or more lifting lines are each attachable to the lifting portions such as to an upper link or lower link. Each lifting member includes an upper link, a lower link, and a trunnion sleeve, wherein the trunnion sleeve has a bore that is sized and shaped to receive the bar, wherein the upper and lower links are rotatably mounted to the trunnion sleeve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.