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US 11,808,395 B2Granted
Pneumatic plug with sealing layer
AssigneeCherne Industries Incorporated
InventorsAsim Mohammed Syed, Micah Thomas Olson
Life of this patent
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Abstract
An pneumatic plug for sealing a pipeline. The pneumatic plug includes a tubular member that extends in an axial direction from a first end to a second end. The tubular member includes a rubber layer and an elastomeric band. The rubber layer extends from the first end to the second end of the tubular member. The elastomeric band is disposed on a top of the rubber layer. The elastomeric band is positioned between the first end and the second end of the tubular member.
Claims9
A method for manufacturing a pneumatic plug, the method comprising:
- disposing a rubber layer about a mandrel, the rubber layer extending in an axial direction from a first end to a second end forming a tubular member;
- and
- positioning an elastomeric band between the first end and the second end of the tubular member on a top surface of the rubber layer,
- wherein
- the pneumatic plug comprises a first end having a maximum outer diameter positioned at a first terminus of the tubular member, a second end having a maximum outer diameter positioned at an opposing terminus of the tubular member, and the tubular member extending between the first end and the second end, and,
- the tubular member comprises an unexpanded state and an expanded state, wherein in the unexpanded state the tubular member has a cylindrical configuration in which an outer diameter of the tubular member about which the elastomeric band is positioned is the same as the maximum outer diameter of first end and the maximum outer diameter of the second end.
3 more elements
Dependencies are inferred from the claim text.