Device to automatically add a controlled amount of corrosion inhibitor with a change in spring loading
US4402912A · kind A · utility
73Cited by
10References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 23, 1981 |
| Grant date | Sep 6, 1983 |
| Priority date | — |
| Expiry date | Dec 23, 2001 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/4891
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A system for the addition of a corrosion inhibitor to an engine cooling system wherein a container in the coolant system holds the corrosion inhibitor in a solid package which is withheld from contact with the coolant solution by a spring under load. The inhibitor package is counterbalanced by a pair of opposed springs with one spring being subject to corrosion when the corrosive effect of the coolant increases; corrosion of the spring allowing the inhibitor package to be urged into contact with the solution to provide treatment thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.