Groundwater monitoring system
US4669536A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 27, 1984 |
| Grant date | Jun 2, 1987 |
| Priority date | — |
| Expiry date | Sep 27, 2004 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04B47/024
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A groundwater monitoring system includes a bore, a well casing within and spaced from the bore, and a pump within the casing. A water impermeable seal between the bore and the well casing prevents surface contamination from entering the pump. Above the ground surface is a removable operating means which is connected to the pump piston by a flexible cord. A protective casing extends above ground and has a removable cover. After a groundwater sample has been taken, the cord is disconnected from the operating means. The operating means is removed for taking away, the cord is placed within the protective casing, and the cover closed and locked. The system is thus protected from contamination, as well as from damage by accident or vandalism.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.