Lifter
US11613450B2 · kind B2 · utility
4Cited by
20References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 11, 2019 |
| Grant date | Mar 28, 2023 |
| Priority date | — |
| Expiry date | Feb 11, 2039 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB66F2700/09
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A lifter is disclosed. The disclosed lifter comprises: a frame; a motor part coupled to the frame; a drum rotatably coupled to the motor part and including a plurality of winding parts formed at regular intervals along the rotary shaft direction; and a plurality of wires coupled to be wound on the plurality of winding parts, respectively. Ends of the plurality of wires at one side thereof may be connected to the plurality of winding parts, respectively, and other ends of the plurality of wires may be detachably fixed to a ceiling.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.