Invalid hoists
US5987664A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 7, 1998 |
| Grant date | Nov 23, 1999 |
| Priority date | — |
| Expiry date | Aug 7, 2018 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61G2200/34
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The invalid hoist comprises a lifting arm, a sling hanger support angularly displaceable relative to the lifting arm about a vertical or substantially vertical axis, and a sling hanger which is a unitary construction pivotable about a horizontal axis relative to the sling hanger support and which presents two spaced sling attachment points on one side of the horizontal axis and at least one sling attachment point on the other side of the horizontal axis. The invalid hoist also comprises rotary drive means for pivoting the sling hanger about said horizontal axis relative to the sling hanger support and switch means for selectively rotating the rotary drive means in one or other of two opposite directions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.