Reciprocating pump

US10731640B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-10731640-B2
Application numberUS-201716322587-A
CountryUS
Kind codeB2
Filing dateJun 15, 2017
Priority dateAug 3, 2016
Publication dateAug 4, 2020
Grant dateAug 4, 2020

How to read this patent

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  1. Title

    What the patent document calls the invention.

  2. Abstract

    A short plain-language summary of the technical disclosure.

  3. Assignees and inventors

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  4. Key dates

    Filing, priority, publication, and grant dates set the timeline.

  5. First independent claim

    The legal scope of protection — read this for what is actually claimed.

  6. CPC / IPC classifications

    Technology tags used to group this patent with similar filings.

  7. Citations and related patents

    Prior art links and similar publications in this corpus.

Abstract

Official abstract text for this publication.

A reciprocating pump includes: a housing with a suction port and a discharge port; a reciprocated member disposed in the housing to form a pump chamber and reciprocable such that fluid is sucked into the pump chamber through the suction port and then discharged from the pump chamber through the discharge port; an actuator configured to reciprocate the reciprocated member; and a pressure gauge with a pressure receiving portion, configured to detect pressure of the fluid in the pump chamber through the pressure receiving portion, and coupled to the reciprocated member to be reciprocated by the actuator integrally with the reciprocated member.

First claim

Opening claim text (preview).

What is claimed is: 1. A reciprocating pump for transferring fluid, comprising: a housing with a suction port and a discharge port; a reciprocated member disposed in the housing to form a pump chamber, and reciprocable such that fluid is sucked into the pump chamber through the suction port and discharged from the pump chamber through the discharge port, the reciprocated member including a moving wall defining the pump chamber within the housing, an opposite side of the moving wall from the pump chamber includes a recess, a bottom of the recess defined by a flexible membranous portion having a thickness smaller than a surrounding portion of the reciprocated member; an actuator configured to reciprocate the reciprocated member; and a pressure gauge with a pressure receiving portion, configured to detect pressure of fluid in the pump chamber through the pressure receiving portion, and coupled to the reciprocated member to be reciprocated by the actuator integrally with the reciprocated member, and fitted into the recess of the moving wall with the pressure receiving portion abutting on the flexible membranous portion of the recess so that the pressure gauge is covered by the moving wall from the pump chamber. 2. The reciprocating pump according to claim 1 , wherein the moving wall reciprocated member comprises a rolling diaphragm. 3. The reciprocating pump according to claim 1 , wherein the moving wall reciprocated member comprises a bellows.

Assignees

Inventors

Classifications

  • Casings; Cylinders; Cylinder liners or heads; Fluid connections · CPC title

  • F04B43/04Primary

    Pumps having electric drive · CPC title

  • Pressure in the compression chamber · CPC title

  • Pumps having electric drive · CPC title

  • Control using electricity (regulating by means of floats actuating electric switches F04B49/04) · CPC title

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Frequently asked questions

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What does patent US10731640B2 cover?
A reciprocating pump includes: a housing with a suction port and a discharge port; a reciprocated member disposed in the housing to form a pump chamber and reciprocable such that fluid is sucked into the pump chamber through the suction port and then discharged from the pump chamber through the discharge port; an actuator configured to reciprocate the reciprocated member; and a pressure gauge w…
Who is the assignee on this patent?
Nippon Pillar Packing
What technology area does this patent fall under?
Primary CPC classification F04B43/04. Mapped technology areas include Mechanical Engineering.
When was this patent published?
Publication date Tue Aug 04 2020 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).