| 摘要 |
An inflatable pipe plug having an improved mold-formed gripping surface and a method of fabricating the pipe plug. The pipe plug has a cylindrical elastic body with ends that are connected to rigid end caps by a swaging ring, the outer surface of the expandable elastic body having a series of raised ribs and textured bands formed by expanding an uncured cylindrical rubber sleeve in a mold and curing the sleeve to form the plug body.
|
