EP 0754837 A3 19991103 - Device for irradiation of wells to prevent biological stains
Title (en)
Device for irradiation of wells to prevent biological stains
Title (de)
Brunnenbestrahlungsanlage zur Verhinderung biologischer Verockerung
Title (fr)
Dispositif pour l'irradiation de puits pour prévenir des taches biologiques
Publication
Application
Priority
DE 19526792 A 19950717
Abstract (en)
[origin: DE19526792C1] A ground water well filter assembly incorporates a radioactive source. The novelty is that the radioactive source (1) is located within a pipe system consisting of an outer protective sheath (2) surrounding a watertight probe pipe (3) around a perforated source (1) tube (4). The upper part of the probe (5) pipe system is closed at the head of the well by a safety valve (7) and an upper section (5) with an aerosol filter (6).
IPC 1-7
IPC 8 full level
E21B 37/08 (2006.01)
CPC (source: EP)
E21B 37/08 (2013.01)
Citation (search report)
- [A] US 4958683 A 19900925 - ALFORD GEORGE W [US], et al
- [A] US 3602712 A 19710831 - MANN LELAND A, et al
Designated contracting state (EPC)
AT BE CH ES FR IT LI NL PT
DOCDB simple family (publication)
DE 19526792 C1 19961114; EP 0754837 A2 19970122; EP 0754837 A3 19991103
DOCDB simple family (application)
DE 19526792 A 19950717; EP 96250155 A 19960711