公开(公告)号：US11441959B2

公开(公告)日：2022-09-13

申请号：US16131414

申请日：2018-09-14

Applicant: Hexagon Technology AS

Inventor： Seth Andrew Wortman ,  Brad James Moutray

IPC: G01L7/16 ,  G01L19/12 ,  G01L19/10

Abstract: A pressure indicator includes a body, a piston, first and second biasing elements, and a rotatable disc. The piston is disposed at least partially in a bore of the body at a first longitudinal axial position relative to the body when pressure of fluid acting on the base is below a threshold pressure. The first biasing element is disposed between a base of the piston and a shoulder of the body, wherein a force of the first biasing element is overcome by pressure of fluid acting on the base at or above the threshold pressure, thereby allowing the piston to move to a second longitudinal axial position. The rotatable disc has a first rotational position when the piston is in the first axial position. The second biasing element is configured to urge the disc to a second rotational position when the piston is in the second axial position.

公开(公告)号：US20190107455A1

公开(公告)日：2019-04-11

申请号：US16131414

申请日：2018-09-14

Applicant: Hexagon Technology AS

Inventor： Seth Andrew Wortman ,  Brad James Moutray

IPC: G01L7/16

Abstract: A pressure indicator includes a body, a piston, first and second biasing elements, and a rotatable disc. The piston is disposed at least partially in a bore of the body at a first longitudinal axial position relative to the body when pressure of fluid acting on the base is below a threshold pressure. The first biasing element is disposed between a base of the piston and a shoulder of the body, wherein a force of the first biasing element is overcome by pressure of fluid acting on the base at or above the threshold pressure, thereby allowing the piston to move to a second longitudinal axial position. The rotatable disc has a first rotational position when the piston is in the first axial position. The second biasing element is configured to urge the disc to a second rotational position when the piston is in the second axial position.