Ice rink refrigerant distribution means
US4414821A · kind A · utility
5Cited by
4References
17Claims
0Family size
Inventor
Key dates
| Filing date | Jul 6, 1982 |
| Grant date | Nov 15, 1983 |
| Priority date | — |
| Expiry date | Jul 6, 2002 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25C3/02
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
Ice rink refrigeration apparatus includes a liquid refrigerant supply pipe; rink pipes which receive this refrigerant and extend beneath the ice rink to effect cooling and a collection pipe which collects the vaporized or partially vaporized refrigerant from the rink pipes. The supply pipe is mounted coaxially within the collection pipe to form a common header which is positioned centrally of the rink. A unified connector piece serves to connect the two ends of each rink pipe with the supply and collector pipes respectively.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.