EP 0076283 A1 19830413 - IMPROVEMENTS IN AND RELATING TO THE LINING OF SEWERS, PIPES, OR THE LIKE.
Title (en)
IMPROVEMENTS IN AND RELATING TO THE LINING OF SEWERS, PIPES, OR THE LIKE.
Title (de)
VERBESSERUNGEN BEZÜGLICH DER AUSKLEIDUNG VON ABWASSERKANÄLEN, ROHREN UND DERGLEICHEN.
Title (fr)
AMELIORATIONS SE RAPPORTANT AU REVETEMENT INTERIEUR D'EGOUTS, TUYAUX, OU AUTRES.
Publication
Application
Priority
GB 8111053 A 19810408
Abstract (en)
[origin: WO8203417A1] A method of removing obstructions from within a sewer or pipe system comprises introducing into a primary bore (20) of the system a water jetting device comprising at least one jet nozzle (7). An obstruction within the main bore (20) or at the orifice of a branch pipe (22) may be removed by directing from the jet nozzle (7) a high pressure water jet at a pressure sufficient to cut away the obstruction. When the obstruction is within the main bore (20) the jet nozzle (7) is located with its axis adjacent and approximately parallel to the internal circumference of the bore, and is pivoted about an axis coinciding with the central axis of the bore. When the obstruction is at the entry to the branch pipe (22) the axis of the nozzle (7) is located at right angles to the longitudinal axis of the bore (20) and is pivoted about the central axis of the branch pipe (22). The water jetting device is located within the sewer or pipe system by means of a sled or like guide means (1) and the movement of the jet nozzle (7) is effected by remotely controlled guide means under the supervision of a closed circuit television camera or other sensing means.
Abstract (fr)
Procede permettant d'enlever les obstructions d'un systeme d'egouts ou de tuyaux, lequel consiste a introduire dans un orifice primaire (20) du systeme un dispositif a jet d'eau comprenant au moins un ajutage de jet (7). Une obstruction dans l'orifice principal (20) ou a l'orifice d'un tuyau d'embranchement (22) peut etre enleve en envoyant avec l'ajutage de jet (7) un jet d'eau a haute pression a une pression suffisante pour decouper et enlever l'obstruction. Lorsque l'obstruction se trouve dans l'orifice principal (20), l'ajutage a jet est situe avec son axe adjacent et approximativement parallele a la circonference interieure de l'orifice, et pivote autour d'un axe coincidant avec l'axe central de l'orifice. Lorsque l'obstruction est a l'entree du tuyau d'embranchement (22), l'axe de l'ajutage (7) est situe a angle droit par rapport a l'axe longitudinal de l'orifice (20) et pivote autour de l'axe central du tuyau d'embranchement (22). Le dispositif a jet d'eau est place dans le systeme d'egouts ou de tuyaux a l'aide d'un traineau ou autre moyen de guidage (1) et le mouvement de l'ajutage a jet (7) s'effectue par des moyens de guidage commandes a distance sous la supervision d'une camera de television en circuit ferme ou autre moyen de detection.
IPC 1-7
IPC 8 full level
E03F 7/00 (2006.01); B08B 9/032 (2006.01); B08B 9/043 (2006.01); E03F 9/00 (2006.01)
CPC (source: EP)
E03F 9/00 (2013.01)
Designated contracting state (EPC)
AT BE CH DE FR GB LI NL SE
DOCDB simple family (publication)
WO 8203417 A1 19821014; BR 8207578 A 19830329; DE 3274567 D1 19870115; EP 0076283 A1 19830413; EP 0076283 B1 19861203; GB 2098300 A 19821117; GB 2098300 B 19850424; JP S58500619 A 19830421; NZ 200262 A 19851108; ZA 822424 B 19830330
DOCDB simple family (application)
GB 8200107 W 19820408; BR 8207578 A 19820408; DE 3274567 T 19820408; EP 82900980 A 19820408; GB 8111053 A 19810408; JP 50115882 A 19820408; NZ 20026282 A 19820407; ZA 822424 A 19820408