公开(公告)号：US20220178906A1

公开(公告)日：2022-06-09

申请号：US17114556

申请日：2020-12-08

Applicant: M-I L.L.C.

Inventor： Kenneth Slater ,  Bruno Lecerf ,  Steven Philip Young ,  Chemsseddine Bouguetta

IPC: G01N33/28

Abstract: A device includes a housing having a bore formed axially therethrough. The housing includes a stop that protrudes radially inward proximate to a lower end of the housing. The device also includes a lower piston positioned in the bore. The lower piston is configured to move axially within the bore in response to a pressure differential across the lower piston. The lower piston is prevented from passing out through the lower end of the housing by the stop. The lower piston has a lower piston hole formed therethrough. The device also includes an upper piston positioned in the bore. The upper piston is configured to move axially within the bore in response to a pressure differential across the upper piston. The upper piston has an upper piston hole formed therethrough. The device is configured to receive a fluid in the bore, between the upper and lower pistons.

公开(公告)号：US11674945B2

公开(公告)日：2023-06-13

申请号：US17114556

申请日：2020-12-08

Applicant: M-I L.L.C.

Inventor： Kenneth Slater ,  Bruno Lecerf ,  Steven Philip Young ,  Chemsseddine Bouguetta

IPC: G01N33/28 ,  B25J11/00

CPC classification number: G01N33/2823 ,  G01N33/2835 ,  B25J11/005

Abstract: A device includes a housing having a bore formed axially therethrough. The housing includes a stop that protrudes radially inward proximate to a lower end of the housing. The device also includes a lower piston positioned in the bore. The lower piston is configured to move axially within the bore in response to a pressure differential across the lower piston. The lower piston is prevented from passing out through the lower end of the housing by the stop. The lower piston has a lower piston hole formed therethrough. The device also includes an upper piston positioned in the bore. The upper piston is configured to move axially within the bore in response to a pressure differential across the upper piston. The upper piston has an upper piston hole formed therethrough. The device is configured to receive a fluid in the bore, between the upper and lower pistons.