Gypsum-based board material producing apparatus

US2019054656A1 · US · A1

Patent metadata
FieldValue
Publication numberUS-2019054656-A1
Application numberUS-201716075733-A
CountryUS
Kind codeA1
Filing dateFeb 6, 2017
Priority dateFeb 10, 2016
Publication dateFeb 21, 2019
Grant date

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  1. Title

    What the patent document calls the invention.

  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  6. CPC / IPC classifications

    Technology tags used to group this patent with similar filings.

  7. Citations and related patents

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Abstract

Official abstract text for this publication.

Provided is a gypsum-based board producing apparatus including: a mixer configured to prepare a gypsum slurry; a foaming apparatus; and a pump configured to convey foam generated by the foaming apparatus to the mixer, wherein the pump is a positive displacement pump.

First claim

Opening claim text (preview).

1 . A gypsum-based board producing apparatus comprising: a mixer configured to prepare a gypsum slurry; a foaming apparatus; and a pump configured to convey foam generated by the foaming apparatus to the mixer, wherein the pump is a positive displacement pump. 2 . The gypsum-based board producing apparatus according to claim 1 , wherein the pump is disposed between the foaming apparatus and the mixer in a conveyance path of the foam. 3 . The gypsum-based board producing apparatus according to claim 1 , wherein the mixer includes a raw material supply part, a mixing area, and a slurry delivery part, and wherein a foam supply port for supplying, to the gypsum slurry, the foam conveyed by the pump is disposed on the slurry delivery part. 4 . The gypsum-based board producing apparatus according to claim 1 , wherein the pump is a rotary pump. 5 . The gypsum-based board producing apparatus according to claim 4 , wherein the pump is a screw pump. 6 . The gypsum-based board producing apparatus according to claim 5 , wherein the screw pump is a uniaxial screw pump. 7 . The gypsum-based board producing apparatus according to claim 1 , further comprising: a molding machine configured to mold the gypsum slurry prepared by the mixer; a sensor configured to detect a change in a volume of the gypsum slurry staying in front of the molding machine; and a control unit configured to control a supply amount of foam from the foaming apparatus to the mixer based on a detection result at the sensor.

Assignees

Inventors

Classifications

  • B28C5/381Primary

    Producing cellular concrete (B28C5/1269 takes precedence; producing foam B01F23/235, B01F23/291) · CPC title

  • by adding preformed foams · CPC title

  • B28C7/04Primary

    Supplying or proportioning the ingredients {(B28C7/022 takes precedence; forming a predetermined ratio of the components to be mixed, in general B01F35/80)} · CPC title

  • Plants; Systems; Methods · CPC title

  • as one or more layers of a layered structure · CPC title

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Frequently asked questions

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What does patent US2019054656A1 cover?
Provided is a gypsum-based board producing apparatus including: a mixer configured to prepare a gypsum slurry; a foaming apparatus; and a pump configured to convey foam generated by the foaming apparatus to the mixer, wherein the pump is a positive displacement pump.
Who is the assignee on this patent?
Yoshino Gypsum Co
What technology area does this patent fall under?
Primary CPC classification B28C5/381. Mapped technology areas include Operations & Transport.
When was this patent published?
Publication date Thu Feb 21 2019 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 6 related publications on this page (citations in our corpus or others sharing the same primary CPC).