Exhaust control for cryogenic freezer
US4528819A · kind A · utility
22Cited by
14References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 8, 1984 |
| Grant date | Jul 16, 1985 |
| Priority date | — |
| Expiry date | May 8, 2004 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25D3/11
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
An exhaust system for a cryogenic freezer is set forth wherein the system senses the temperature of an aperture in the freezer to detect any outward passage of cryogenic vapors and based upon that sensing, controllably operates an exhaust fan to remove such cryogenic vapors.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.