Lifting apparatus
US9283130B2 · kind B2 · utility
5Cited by
69References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 4, 2012 |
| Grant date | Mar 15, 2016 |
| Priority date | — |
| Expiry date | Oct 4, 2032 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61G2203/78
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
Disclosed is a hoist mechanism comprising a lifting arm wherein: when the lifting arm is in a fully raised position, a projecting upper end section of a major part of the lifting arm extends substantially horizontally; an effective length of the projecting upper end section is made variable by the provision of an extension element adjustably fixed to it; and the lifting arm is variable in upstanding height by a provision of a lower end section slidably connected to the major part of the lifting arm, wherein both length and height variations are made by stepless adjustments.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.