COLLAR FOR AN INSPECTION OR CLEANING PIG

• US 20160238184A1
• Filed: 09/26/2014
• Published: 08/18/2016
• Est. Priority Date: 10/04/2013
• Status: Active Grant

• Current Assignee: Rosen Swiss Ag (Rosen Swiss Holding AG)
• Original Assignee: Rosen Swiss Ag (Rosen Swiss Holding AG)
• Inventors: Khbach, Nico, Fielers, Frank
• Granted Patent: US 10,612,714 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: B08B 9/055 the cleaning devices conforming to, or being conformable to, substantially the same cross-section of the pipes, e.g. pigs or moles pigs or moles per se F16L55/26; their launching and detection F16L55/46; separating pigs in pipelines F17D3/00
• CPC Class Codes: B08B 9/0551 Control mechanisms therefor
• CPC Class Codes: B08B 9/0557 Pigs with rings shaped cleaning members, e.g. cup shaped pigs
• CPC Class Codes: F16L 2101/12 Cleaning
• CPC Class Codes: F16L 2101/30 Inspecting, measuring or testing
• CPC Class Codes: F16L 55/38 driven by fluid pressure
• CPC Class Codes: F16L 55/40 of the body

Abstract

A collar for a cleaning or inspection pig which is movable in a pipeline and through the latter. The collar may include an inner fastening region, with respect to a longitudinal center axis of the collar, for fixing the collar to the cleaning or inspection pig. The collar may also include a contact region which is provided for contact against a pipe wall and which is part of an outer segment which is connected to the inner fastening region. The inner fastening region is preferably in advance of the contact region with respect to a direction of movement (F) of the pig. The collar comprises an anchoring segment, the first end of which is arranged on the outer segment and the other, second end of which is arranged, with respect to the longitudinal center axis, further toward the latter and trailing the first end with respect to a direction of movement of the pig. A pig for cleaning or inspecting pipeline pipes may also be provided.

Claims

1. A collar for a cleaning or inspection pig which is movable in a pipeline, said collar comprising:

an inner fastening region with respect to a longitudinal center axis of the collar, said inner fastening region fixing the collar to the cleaning or inspection pig,

a contact region which is provided for contact against a pipe wall and which is part of an outer segment which is connected to the inner fastening region;

an anchoring segment, a first end of which is arranged on the outer segment and a second end of which is arranged, with respect to the longitudinal center axis, further toward the longitudinal center axis and trailing the first end with respect to a direction of movement of the pig;

wherein the inner fastening region is preferably in advance of the contact region with respect to a direction of movement (F) of the pig.

2. The collar as claimed in claim 1, wherein the anchoring segment is arranged on the outer segment at a distance from the contact region in the direction of the longitudinal center axis, and the second end is fixable or is fixed on the fastening region or on a pig part.

3. The collar as claimed in claim 1, wherein the anchoring segment at least partially forms a cavity with respect to at least one of the outer segment and the inner fastening region.

4. The collar as claimed in claim 3, wherein the collar has a pressure-equalizing opening which, with regard to a direction of movement (F), leads from the front to the cavity.

5. The collar as claimed in claim 1 wherein the anchoring segment is formed with at least one joint for the forced guidance of individual anchoring segment sections.

6. The collar as claimed in claim 5, wherein an anchoring segment section located between two joints is designed to be thicker than the joint.

7. The collar as claimed in claim 1 wherein the anchoring segment has a fastening flange at its second end, in particular for introducing into a region of complementary design.

8. The collar as claimed in claim 1 wherein the anchoring segment has thin regions in the circumferential direction for improved adaptation to different pipe inside diameters.

9. The collar as claimed in claim 1 wherein the collar is produced integrally with the anchoring segment and in particular from polyurethane.

10. A pig for cleaning or inspecting pipeline pipes, said pig comprising a collar as claimed in claim 1.