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US 10,618,197 B2Granted
Gypsum-based board material producing apparatus
AssigneeYoshino Gypsum Co., Ltd.
InventorsYuichi Hirooka, Seigo Ishibashi, Masaru Yoshida
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Abstract
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.
Claims6
A gypsum-based board producing apparatus comprising:
- a mixer configured to prepare a gypsum slurry;
- a foamer;
- and
- a pump configured to convey foam generated by the foamer to the mixer;
- a first pipe having a first length that connects the pump and the mixer;
- and
- a second pipe having a second length that connects the foamer and the pump,
- wherein the pump is a positive displacement pump, and
- wherein the first length is shorter than the second length.
6 more elements
Dependencies are inferred from the claim text.