Water treatment in aqueous heat transfer apparatus
US4885141A · kind A · utility
3Cited by
9References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 13, 1988 |
| Grant date | Dec 5, 1989 |
| Priority date | — |
| Expiry date | May 13, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/4891
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A capsule 1 (FIG. 1) for the treatment of water in an aqueous heat transfer apparatus comprises open top compartments 2, 3 and luges 6 to bear against and grip the inside of a passage in which the capsule is located. The open tops of the compartments are closed by means of covers of controlled release glass which dissolve in water at different rates. The capsule can be arranged to release a first dose of corrosion inhibitor on exposure to water under relatively milder conditions and a second dose of corrosion inhibitor on exposure to water under relatively severer conditions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.