Patent ID: 8372281
Filing Date: 2013-02-12
Classification: B01D

Abstract:
1. A scraper adjustment mechanism for adjusting the distance between an edge of a scraper and a filter assembly surface positioned in a filter assembly housing and wherein the housing includes an inspection port, said scraper adjustment mechanism comprising: a. an inspection cover comprising a projection that passes through the inspection port when said cover is installed at said inspection port, said inspection cover further including a plurality of passageways from a first surface to a second opposite surface of said inspection cover; b. at least a pair of elongate tie bars extending in said elongate direction through said passageways and being slideably movable therein; c. said pair of tie bars each including a proximal end and a distal end, said proximal end of each of said pair of tie bars being closest to an outer surface of the filter assembly housing and the distal end of each of said pair of tie bars being closest to said filter assembly surface; d. an adjustment mechanism at the proximal end of each of said pair of tie bars and being actuatable by rotation in opposite directions from outside of said filter assembly housing without removal of said inspection cover, whereby rotation in one direction moves said tie bars in a direction outwardly of said housing in a direction away from the filter assembly surface and rotation in an opposite direction permits movement of the tie bars in a direction inwardly of the housing toward said filter assembly surface; e. said distal end of each of said pair of tie bars including a recess therein; f. a scraper having a lower scraper portion and an upper mounting portion, said upper mounting portion being secured within said recess against movement relative to said tie bars, said scraper being movable as a unit with said tie bars when the position of said tie bars is adjusted to adjust the position of the lower scraper portion of the scraper relative to the filter assembly surface.