Infrared sensing lift chair
US7255397B2 · kind B2 · utility
10Cited by
23References
34Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 25, 2004 |
| Grant date | Aug 14, 2007 |
| Priority date | — |
| Expiry date | Feb 10, 2026 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S297/10
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The present invention provides an adjustable furnishing such as a lift chair including a support member with a surface for supporting a user. A mechanism is connected to the support member for adjusting a position of the support member. One or more infrared radiation sensors are positioned beneath the surface of the support member to generate a signal when a heated body is detected in proximity to the mechanism. A controller is provided for receiving the signal from the infrared radiation sensors and inhibiting travel of the mechanism and the support member in a direction of the detected heated body.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.