Device for controlled cooling of a surface
US6226996A · kind A · utility
65Cited by
7References
39Claims
0Family size
Inventors
Key dates
| Filing date | Oct 6, 1999 |
| Grant date | May 8, 2001 |
| Priority date | — |
| Expiry date | Oct 6, 2019 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF17C2270/02
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A device is described that uniformly cools a surface to a specified temperature using a mist of cryogenic fluid. The device comprises a cryogenic fluid reservoir, a valve for controllably releasing the fluid through an atomizing nozzle, a non-contact temperature sensor, and a control unit to display the measured temperature and optionally pre-set the desired surface temperature and control the valve. The application of mist can be controlled manually or electronically. This invention provides a portable tool for safely cooling skin for dermatological applications.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.