Reciprocable pump with variable speed drive
US4397610A · kind A · utility
25Cited by
3References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 9, 1981 |
| Grant date | Aug 9, 1983 |
| Priority date | — |
| Expiry date | Mar 9, 2001 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05D16/2066
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A reciprocable liquid pump driven by a direct current electric motor wherein the motor drive voltage, and thereby pump reciprocation, and output pressure, is selectively controlled by a circuit including an electromechanical transducer coupled in pressure sensing relation to the liquid pump output, a manually operable pressure set point switch, and a silicon-controlled rectifier circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.