公开(公告)号：US08888958B2

公开(公告)日：2014-11-18

申请号：US14097766

申请日：2013-12-05

Applicant: Andritz Inc.

Inventor： Grant Bechard ,  Keith Vogel ,  Jay Sheerer ,  Edward James Cummings ,  Carl Luhrmann

IPC: D21C9/04

CPC classification number: D21C9/04

Abstract: A pressure diffuser washer comprising: an outer wall, an inner wall adjacent to the outer wall, the inner wall defining annular baffle chambers between the outer wall and the inner wall, wherein each of the annular baffle chambers is configured to connect to a source of a wash liquid, a reciprocating screen assembly adjacent to the inner wall, the reciprocating screen assembly defining a first annular chamber between the inner wall and the reciprocating screen assembly, an area in the inner wall defining a gap associated with each of the annular baffle chambers, wherein the wash liquid from an annular baffle chamber flows through the gap into the first annular chamber, and an annular baffle screen plate covering the gap, wherein the annular baffle screen plate defines openings sized to prevent rocks and other large particulate debris from entering the annular baffle chambers.

Abstract translation: 一种压力扩散器垫圈，包括：外壁，与所述外壁相邻的内壁，所述内壁在所述外壁和所述内壁之间限定环形挡板室，其中每个所述环形挡板室被构造成连接到 洗涤液体，邻近内壁的往复式筛网组件，往复筛网组件限定在内壁和往复筛网组件之间的第一环形室，内壁中的区域限定与每个环形挡板室相关联的间隙 ，其中来自环形挡板室的洗涤液体通过所述间隙流入所述第一环形室，以及覆盖所述间隙的环形挡板筛板，其中所述环形挡板筛板限定开口尺寸以防止岩石和其它大颗粒物质进入 环形挡板室。

公开(公告)号：US20200149559A1

公开(公告)日：2020-05-14

申请号：US16665537

申请日：2019-10-28

Applicant: Andritz Inc.

Inventor： Grant Bechard ,  Jonathan Steinbiss ,  Brandon Smith

IPC: F15B1/02

Abstract: A method of hydraulic actuation that includes positioning a piston within the chamber of a cylinder body, the chamber including a gas region and a fluidized region, the sidewall of the piston including at least one sealing surface for engaging the sidewall of chamber; and traversing the piston between a portion of the gas region and a portion of the fluidized region, wherein a distance of travel within the chamber that the piston traverses between the gas region and the fluidized region is less than a length of the sidewall of the piston. By increasing the length of the piston sidewall and decreasing the distance of travel for the piston, the method eliminates or substantially reduces fluid carry over in accumulators.

公开(公告)号：US20240240401A1

公开(公告)日：2024-07-18

申请号：US18096789

申请日：2023-01-13

Applicant: ANDRITZ INC.

Inventor： Tyson B. Hunt ,  Grant Bechard ,  Spencer Williams ,  Keith Vogel ,  Jeff Williams

IPC: D21C9/04 ,  F16C29/02

CPC classification number: D21C9/04 ,  F16C29/02 ,  F16C33/20

Abstract: A bearing for guiding reciprocating vertical movement of a pressure diffuser screen assembly may include: a bearing cylinder; a screen extension having an upper portion configured to couple to a lower portion of the pressure diffuser screen assembly, the screen extension having a screen extension outer diameter less than a pressure diffuser screen assembly outer diameter and less than an inner diameter of the bearing cylinder; and a bearing assembly configured to couple to the screen extension at a lower portion of the screen extension, the bearing assembly having a bearing assembly inner diameter corresponding to the screen extension outer diameter and a bearing assembly outer diameter corresponding to the inner diameter of the bearing cylinder. An inner diameter of the bearing cylinder may provide a bearing surface for the bearing assembly.