Quick release hoist system
US11472682B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 26, 2021 |
| Grant date | Oct 18, 2022 |
| Priority date | — |
| Expiry date | Jan 31, 2041 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB66D2700/023
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A hoist system including an air balancer having an air supply and an air exhaust, a lifting device, and a hoist control pendant to control supply and exhaust of pressurized air to and from the air balancer, respectively, the hoist control pendant configured to control vertical movement of the lifting device. The air exhaust from the air balancer includes a first exhaust flow path through a first exhaust opening and a second exhaust flow path through a second exhaust opening, the first exhaust flow path having a first length and the second exhaust flow path having a second length, the second length being shorter than the first length.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.