Timing circuit for a chassis lubricator
US4147233A · kind A · utility
7Cited by
6References
5Claims
0Family size
Inventor
Key dates
| Filing date | Aug 16, 1976 |
| Grant date | Apr 3, 1979 |
| Priority date | — |
| Expiry date | Aug 16, 1996 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/86389
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A solid state timing circuit exhibiting very high reliability under adverse environmental operational conditions such as are encountered in automatic truck lubrication systems. The circuit utilizes an electrochemical timing device operating in plate and deplate modes to achieve a periodic actuation of an inductive load. Two transistor stages are operatively associated with the electrochemical timing device and an R-C timing network is used to control one of these transistor stages.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.