FIELD: construction of pipelines. SUBSTANCE: end sections of cord threads, located in the cylindrical part of layers, are unbent in radial direction and grouped into separate, partially overlapping each other, reinforcing end walls of the strip, whose ends go behind the axis of device rotation, the strips running from the diameter opposite ends are connected directly in overlap in the area of the axis of device rotation. EFFECT: enhanced reliability. 5 cl, 4 dwg
Title | Year | Author | Number |
---|---|---|---|
RUBBERIZED CORD DEVICE FOR SHUT-OFF OF PIPELINES AND METHOD OF ITS MANUFACTURE | 1992 |
|
RU2037727C1 |
RUBBER-CORD SHELL FOR OVERLAPPING PIPELINES | 2005 |
|
RU2273788C1 |
PLUGGING RUBBER AND CORD UNIT TO SHUT OFF PIPE-LINES | 1997 |
|
RU2131078C1 |
RUBBER-CORD SHUT-OFF DEVICE FOR SHUTTING-OFF PIPE LINES | 1999 |
|
RU2179682C2 |
DEVICE FOR SHUT-OFF OF SEWER PIPE | 1992 |
|
RU2037728C1 |
ENCLOSURE FOR CANALIZATION PIPELINE CUTOFF DEVICE | 1992 |
|
RU2042077C1 |
SEALING RUBBER-CORD DEVICE FOR SHUTTING-OFF PIPE LINES | 2005 |
|
RU2277661C1 |
RUBBER-CORD SHELL AND METHOD OF ITS PRODUCTION | 2001 |
|
RU2240465C2 |
SUPPRESSING DEVICE FOR OVERLAPPING PIPE-LINE | 2000 |
|
RU2174639C1 |
RUBBER-CORD CASING FOR PIPELINE SHUTOFF | 2022 |
|
RU2793257C1 |
Authors
Dates
1995-06-19—Published
1992-02-04—Filed