Invalid lifting device
US6161232A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 28, 1999 |
| Grant date | Dec 19, 2000 |
| Priority date | — |
| Expiry date | May 28, 2019 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61G7/1061
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The invalid lifting device comprises a first mast upstanding from a first elongate chassis member and a second mast upstanding from a second elongate chassis member which is parallel or substantially parallel to the first chassis member. The lifting device also comprises a lifting arm supported by and extending between the first and second masts, the lifting arm comprising two parts pivotable relative to one another so that the distance between the masts can be varied. One part is supported by the first mast and the other part is supported by the second mast. Power operated means are provided for moving the two chassis members towards and away from one another. Each part of the lifting arm comprises a parallelogram linkage to maintain the chassis members in parallel or substantially parallel relationship as the two chassis members are moved towards and away from one another. Each mast may be telescopically extendible/retractable and power operated means may be provided for extending and retracting the two masts in synchronism with one another.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.