Patent ID: 8534467
Filing Date: 2013-09-17
Classification: B01D,E03B,F16L,Y10T

Abstract:
1. A coupling comprising: a pipe joint; a collar; a fitting configured for attachment to the pipe joint by the collar and defining a through passage, an opening at one end leading into the passage, and at least one recess extending from the opening along at least a portion of the passage; a screen being removably disposed in at least a portion of the passage, the screen having a downstream portion and an upstream portion, the downstream portion having an outer surface portion that is at least substantially complimentary to the passage for engagement with the fitting at the passage, and the upstream portion having at least one transverse extension being received in the at least one recess to position the screen relative to the fitting in the passage; an open end of the at least one recess adjacent the fitting opening sized to permit the at least one screen transverse extension to be advanced in a downstream direction into the recess; and a closed end of the at least one recess configured to engage the screen transverse extension and restrict downstream movement of the screen along the fitting passage.