公开(公告)号：USD780227S1

公开(公告)日：2017-02-28

申请号：US29537495

申请日：2015-08-26

Applicant: Graco Minnesota Inc.

Designer： Bradley H. Hines ,  Brian W. Koehn ,  Ronald A. Flor ,  David L. Breeser ,  Todd L. Johnson

公开(公告)号：US20230243424A1

公开(公告)日：2023-08-03

申请号：US18094013

申请日：2023-01-06

Applicant: Graco Minnesota Inc.

Inventor： Nathan C. Grossman ,  Tera D. Brezny ,  Ronald A. Flor ,  Todd L. Johnson

IPC: F04B43/00 ,  F04B43/06

CPC classification number: F04B43/0054 ,  F04B43/06

Abstract: A diaphragm for use in a pump includes a cover configured to contact fluid to pump the fluid and a backing disposed at least partially within the cover. The backing includes a flexible plate that extends outward relative to a core of the backing, the flexible plate configured to flex during reciprocation of the diaphragm. The cover is formed from a first polymer and the flexible plate is formed from a second polymer.

公开(公告)号：USD771714S1

公开(公告)日：2016-11-15

申请号：US29537492

申请日：2015-08-26

Applicant: Graco Minnesota Inc.

Designer： Bradley H. Hines ,  Brian W. Koehn ,  Ronald A. Flor ,  David L. Breeser ,  Todd L. Johnson

公开(公告)号：US11754181B2

公开(公告)日：2023-09-12

申请号：US18094013

申请日：2023-01-06

Applicant: Graco Minnesota Inc.

Inventor： Nathan C. Grossman ,  Tera D. Brezny ,  Ronald A. Flor ,  Todd L. Johnson

IPC: F16J3/02 ,  F04B43/06 ,  F04B43/00

CPC classification number: F16J3/02 ,  F04B43/0054 ,  F04B43/06

Abstract: A diaphragm for use in a pump includes a cover configured to contact fluid to pump the fluid and a backing disposed at least partially within the cover. The backing includes a flexible plate that extends outward relative to a core of the backing, the flexible plate configured to flex during reciprocation of the diaphragm. The cover is formed from a first polymer and the flexible plate is formed from a second polymer.

公开(公告)号：US10514027B2

公开(公告)日：2019-12-24

申请号：US15101222

申请日：2014-12-10

Applicant: Graco Minnesota Inc.

Inventor： Todd L. Johnson ,  Daniel L. MacDonald ,  Ronald A. Flor

IPC: F04B43/02 ,  F04B23/06 ,  F04B9/131 ,  F04B43/073 ,  F04B45/053 ,  F04B49/22 ,  F04B9/133 ,  F04B43/00 ,  F04B45/04 ,  F16K3/08 ,  F16K27/04 ,  F04B35/00 ,  F04B53/10 ,  F04B53/16 ,  F04B49/00

Abstract: A positive displacement pump includes two fluid flow paths, two center sections with a common fluid valve, a changeover valve, and three fluid displacement members. Each center section contains a diaphragm shaft, and the two sections are separated by the third diaphragm. In low-pressure mode the pump operates as a typical positive displacement pump with pumping fluid supplied to one center section and the changeover valve allowing the fluid to freely circulate within the second center section. In high-pressure mode, the changeover valve is switched and the changeover valve allows the common fluid valve to supply pumping fluid to both center sections to drive the fluid displacement members therein, which generates a higher outlet fluid pressure.

公开(公告)号：US20160305410A1

公开(公告)日：2016-10-20

申请号：US15101222

申请日：2014-12-10

Applicant: GRACO MINNESOTA INC.

Inventor： Todd L. Johnson ,  Daniel L. MacDonald ,  Ronald A. Flor

IPC: F04B9/131 ,  F04B43/073 ,  F04B45/053 ,  F04B53/10 ,  F04B49/22 ,  F04B35/00 ,  F04B49/00 ,  F04B53/16

Abstract: A positive displacement pump includes two fluid flow paths, two center sections with a common fluid valve, a changeover valve, and three fluid displacement members. Each center section contains a diaphragm shaft, and the two sections are separated by the third diaphragm. In low-pressure mode the pump operates as a typical positive displacement pump with pumping fluid sup plied to one center section and the changeover valve allowing the fluid to freely circulate within the second center section. In high-pressure mode, the changeover valve is switched and the changeover valve allows the common fluid valve to supply pumping fluid to both center sections to drive the fluid displacement members therein, which generates a higher outlet fluid pressure.

Abstract translation: 正排量泵包括两个流体流动路径，具有公共流体阀的两个中心部分，转换阀和三个流体位移构件。 每个中心部分都包含一个隔膜轴，两个部分由第三个隔膜隔开。 在低压模式下，泵作为典型的容积式泵运行，泵送液体支撑在一个中心部分，而转换阀允许流体在第二中心部分内自由循环。 在高压模式下，转换阀被切换，并且切换阀允许公共流体阀将泵送流体供应到两个中心部分以驱动其中的流体位移元件，从而产生更高的出口流体压力。