Patent ID: 6176493
Filing Date: 2001-01-23
Classification: E02B

Abstract:
A slide gate mechanism for controlling fluid flow through an opening in a wall, said slide gate mechanism comprising:(a) a frame assembly having first and second gate guide members for disposition along the sides of said opening and at least two members extending and interconnecting said first and second gate guide members;(b) a slide extending between said first and second gate guide members;(c) operating means carried by said frame assembly and connected to said slide, said operating means being operable to selectively move said slide in one direction or an opposite direction along said guide members so that said slide plate may be disposed in blocking or unblocking relation with said opening;(d) a seal member associated with each of said first and second gate guide members respectively, said seal member including first lip seal means and resilient seal means, the margins of said slide plate being received between said lip seal means and said resilient seal means, said seal member also comprising a wedge-receiving channel that is defined in part by said resilient seal means and in part by another portion of said seal member;(e) a wedge member disposed in said channel in engagement with said resilient seal means and said another portion of said seal member so as to cause said resilient seal means to press against the margin of one face of said slide and urge said slide into engagement with said lip seal means; and(f) adjustable retainer means connecting said seal member and said wedge member to one of said gate guide members, said retainer means extending through said wedge member and a portion of said seal member and being adjustable to vary the depth of penetration of said channel by said wedge member so as to vary the force with which said wedge member presses said resilient seal means against said slide.