Air-retention shell
US4121540A · kind A · utility
2Cited by
6References
9Claims
0Family size
Inventor
Key dates
| Filing date | Nov 11, 1977 |
| Grant date | Oct 24, 1978 |
| Priority date | — |
| Expiry date | Nov 11, 1997 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01K31/20
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Air cooled or heated by a localized air-temperature-modifying unit suspended from an air-retention shell is temporarily retained by the shell, thereby reducing the energy consumption and improving the efficiency of the air-temperature-modifying means. The preferred air-temperature-modifying means suspended from the shell is a chicken house brooder. The shell is generally conical, faces downwardly, and is made of a highly heat-retentive material, such as foamed synthetic resinous material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.