Bedsore-preventing air mattress controller
US4825486A · kind A · utility
76Cited by
7References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 24, 1987 |
| Grant date | May 2, 1989 |
| Priority date | — |
| Expiry date | Dec 24, 2007 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61G7/05776
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A bedsore-preventing air mattress controller provided with an air pump for generating a magnetomotive force in a plurality of stages proportional to the feed air amount of the pump, and with an electric switch for changing over the magnetomotive force of the pump and integrally assembled with an air shut-off valve for discharging and halting air, whereby the controller arrangement is simplified to effectively reduce the required number of parts for lowering manufacturing costs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.