Cooling device having liquid refrigerant injection ring
US6044648A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 18, 1998 |
| Grant date | Apr 4, 2000 |
| Priority date | — |
| Expiry date | Sep 18, 2018 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25D2400/28
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A cooling device for rapidly cooling items, such as biological samples. The cooling device includes an enclosure having a chamber and an air circulation path at least partially within the chamber. A fan is operatively connected to the chamber for circulating air within the air circulation path and a perforated tube is disposed within the air circulation path for receiving a liquid refrigerant under pressure and distributing refrigerant in gaseous form to the air circulation path. Preferably the perforated tube is formed as a coil having multiple revolutions and either an axial blade fan or a centrifugal fan is received generally within the coils.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.