US 11,867,297 B2
Clamping a plug tip in a control valve
Aurélien Thomas Jules Réau, Flers (FR); Romain Francois Pierre Chenu, Condé en Normandie (FR); and Keith Meneses, Andover, MA (US)
Assigned to Dresser, LLC, Houston, TX (US)
Filed by Dresser, LLC, Houston, TX (US)
Filed on May 17, 2022, as Appl. No. 17/745,951.
Prior Publication US 2023/0375091 A1, Nov. 23, 2023
Int. Cl. F16K 1/48 (2006.01); F16K 1/38 (2006.01); F16K 1/54 (2006.01); F16K 3/02 (2006.01)
CPC F16K 1/482 (2013.01) [F16K 1/38 (2013.01); F16K 1/54 (2013.01); F16K 3/0281 (2013.01); F16K 2200/30 (2021.08)] 10 Claims
OG exemplary drawing
 
1. A valve, comprising:
a valve stem; and
a plug assembly coupled to the valve stem, the plug assembly comprising a plug tip and a clamp, the clamp comprising:
a stem adapter coupled to an end of the valve stem, the stem adapter having a shoulder with a first side and a second side, the stem adapter forming a first boss on the first side with a bore that receives the end of the valve stem;
a spring assembly disposed on the second side of the shoulder;
an upper clamp with a first peripheral wall and a first opening that receives the first boss; and
a lower clamp with a second peripheral wall and a second opening that receives the plug tip,
wherein portions on the first peripheral wall and the second peripheral wall that couple to one another to clamp at least part of the plug tip to cause the spring assembly to generate a pre-load.