Tray table with detent control for invalid chairs and methods of operating and making such tray tables
US5567080A · kind A · utility
Inventor
Key dates
| Filing date | Nov 24, 1993 |
| Grant date | Oct 22, 1996 |
| Priority date | — |
| Expiry date | Nov 24, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T403/7077
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The present invention relates to a tray table for invalid chairs operable in two modes, and methods for making and operating the tray table. Runners on the tray slide into brackets mounted to the arms of the chair, thus maintaining the tray in position in front of the patient. A detent mounted to at least one bracket is capable of engaging a hole on at least one runner. In one mode, the detent engages the hole in the tray table, locking the tray table in position on the chair. In a second mode, a sliding block is displaced under the knob of the detent. The detent is thereby maintained in a retained condition such that the runner may freely slide in and out of the bracket.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.