Patent ID: 9297459
Filing Date: 2016-03-29
CPC Classification: F16K

Claim Text:
1. A gate valve, comprising: a holder; a valve plate slidably retained within the holder to be movable in an opening and closing direction within the holder; a seal for sealing the valve plate relative to the holder; a plurality of first wedge elements located on the valve plate and aligned along the opening and closing direction of movement of the valve plate and spaced at a distance from one another; a plurality of second wedge elements, each of the plurality of second wedge elements mateable with one of the plurality of first wedge elements to press the valve plate in a direction transverse to the opening and closing direction of movement of the valve plate and against the seal when the plurality of first and the plurality of second wedge elements slide against each other; and a slide rail connected to the plurality of second wedge elements and having a plurality of recesses therein into each of which one of the plurality of second wedge elements is inserted, the slide rail connectable to the valve plate to slide the plurality of second wedge elements in the opening and closing direction of movement of the valve plate when the valve plate is moved in the opening and closing direction.