Disposable dental tray
US4428373A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 3, 1982 |
| Grant date | Jan 31, 1984 |
| Priority date | — |
| Expiry date | Feb 3, 2002 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61C19/063
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A disposable dental tray for medications such as fluoride gel, includes a unitary member formed of a flexible foam material defining a pair of hinged U-shaped tray portions configured to fit over the upper and lower teeth of the mouth and wherein each tray portion is defined by a base wall, a pair of end walls and inner and outer side walls. Both of the tray portions are provided with respective tray portion positioning tabs extending from their respective outer side walls. The positioning tabs include respective tab sections which are pre-formed so as to be situated such that when the tray portions are folded, the respective tab sections will automatically abut and be squeezable against each other without the consequent application of any forces to the outer side walls of the tray portion thereby preventing any possibility of distorting the tray portions during use.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.