Class Information
Number: 405/105
Name: Hydraulic and earth engineering > Fluid control, treatment, or containment > Flow control > Water gate or adjustable weir > Sliding > Vertical > Gate unseating
Description: Method or apparatus wherein (a) means are provided for shifting the movable member out of contact with a cooperating sealing surface prior to or at the moment vertical movement begins, or (b) the movable member and the cooperating sealing surface are so configured that as the member is moved vertically from its sealing position, the member moves entirely off the sealing surface.
Patents under this class:
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