| 摘要 |
Strainer Apparatus for mounting within a tube, the apparatus comprising a strainer element having a cylindrical body portion and a conical end portion and a retainer having two concentric spaced cylindrical surfaces between which the strainer element is fastened, and a resilient collar containing a multiplicity of openings, said collar having an outside diameter greater than the internal diameter of the tube whereby upon insertion into the tube the collar is compressed forming a tight fit with the tube and holding the strainer apparatus stationary within the tube. |
