Apparatus for heating eyeglass frames
US4121091A · kind A · utility
11Cited by
11References
9Claims
0Family size
Inventor
Key dates
| Filing date | May 12, 1977 |
| Grant date | Oct 17, 1978 |
| Priority date | — |
| Expiry date | May 12, 1997 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02C13/00
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A method and apparatus for heating articles, such as eyeglass frames, includes a bed of heat retentive beads supported above a plenum chamber by a mesh or screen. Heated air is delivered to the plenum chamber at low velocity and high volume for flowing upwardly through the bed for heating the same. The air is directed through the plenum chamber by bodies which act as baffles as well as a heat sink.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.