US 11,725,739 B2
Valve plate for sealing a valve opening of a vacuum valve
Lukas Schaltegger, Grabs (CH)
Assigned to VAT Holding AG, Haag (CH)
Filed by VAT Holding AG, Haag (CH)
Filed on Jun. 6, 2022, as Appl. No. 17/832,876.
Claims priority of application No. 102021114421.3 (DE), filed on Jun. 4, 2021.
Prior Publication US 2022/0390021 A1, Dec. 8, 2022
Int. Cl. F16K 3/314 (2006.01); F16K 27/04 (2006.01); F16K 51/02 (2006.01); F16K 3/18 (2006.01)
CPC F16K 3/314 (2013.01) [F16K 3/188 (2013.01); F16K 27/044 (2013.01); F16K 51/02 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A valve plate configured for sealing a valve opening of a vacuum valve, the valve plate comprising:
an essentially rectangular valve plate body with relatively long longitudinal sides and relatively short narrow sides;
a sealing ring made of an elastomer material fitted on a front side of the valve plate body configured for sealing the valve plate in relation to a valve seat which encloses the valve opening;
at least one recess on a rear side of the valve plate body having an undercut boundary wall which forms a sloping surface which, for fastening the valve plate on a carrier, is configured to be braceable with a sloping surface of the carrier;
at least one lug that protrudes beyond the rear side of the valve plate body and has a through-passage bore through which a clamping screw is guidable that is adapted to be screwed into a threaded bore of the carrier, for bracing the at least one sloping surface of the valve plate with the at least one sloping surface of the carrier;
wherein in a side view of the valve plate, as seen in a direction parallel to the longitudinal sides of the valve plate, a straight-line extension of a longitudinal center axis of the through-passage bore, which extends through the lug, extends past the sloping surface at a distance from the rear side of the valve plate body.