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LOCKING GATE DEVICE

  • US 20130243560A1
  • Filed: 03/13/2013
  • Published: 09/19/2013
  • Est. Priority Date: 03/14/2012
  • Status: Active Grant
First Claim
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1. A locking gate device comprising:

  • a pair of spaced apart fixed members presenting opposing sealing surfaces and defining a gate-receiving space between said sealing surfaces, wherein each of said fixed members defines a flow-through opening circumscribed by one of said sealing surfaces, wherein said flow-through openings are substantially aligned with one another; and

    a gate assembly shiftable within said gate-receiving space between a closed position where said gate assembly substantially blocks said flow-through openings and an open position where said gate assembly does not substantially block said flow-through openings,wherein said gate assembly comprises a pair of spaced apart sealing plates and a drive member disposed between said sealing plates, wherein when said gate assembly is in said closed position said drive member is shiftable relative to said sealing plates between a retracted position and an extended position,wherein said gate assembly further comprises at least one pair of bearings disposed between said sealing plates, wherein shifting of said drive member from said retracted position to said extended position causes said bearings to force said sealing plates apart from one another and into a sealed position where said sealing plates engage said opposing sealing surfaces, wherein shifting of said drive member from said extended position to said retracted position allows said sealing plates to retract towards one another and into an unsealed position where said sealing plates are disengaged from said opposing sealing surfaces.

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