Mixed media orbital valve
US-2016377185-A1 · Dec 29, 2016 · US
Drainage device for closed chamber containing liquid
US9067802B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9067802-B2 |
| Application number | US-201113242011-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 23, 2011 |
| Priority date | Jul 11, 2011 |
| Publication date | Jun 30, 2015 |
| Grant date | Jun 30, 2015 |
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Abstract
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A drainage device includes a closed chamber, a liquid pumping mechanism, and a liquid discharge mechanism. The drainage device can also include a controller. The closed chamber may be filled with liquid and gas for discharge. The liquid pumping mechanism pumps the liquid in the closed chamber, and prevents the liquid in the liquid pumping mechanism from flowing back to the closed chamber. The liquid discharge mechanism discharges the liquid in the liquid pumping mechanism to the outside, and prevents outside air from flowing into the closed chamber.
First claim
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What is claimed is: 1. A drainage device, comprising: a closed chamber filled with an amount of liquid and gas, the closed chamber defining a fluid channel and a gas channel in a top end, and a slag discharge hole in the bottom end thereof; a liquid pumping mechanism pumping the liquid in the closed chamber, and preventing the liquid in the liquid pumping mechanism from flowing back to the closed chamber, the liquid pumping mechanism comprising a drive assembly, a telescopic as…
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Frequently asked questions
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- What does patent US9067802B2 cover?
- A drainage device includes a closed chamber, a liquid pumping mechanism, and a liquid discharge mechanism. The drainage device can also include a controller. The closed chamber may be filled with liquid and gas for discharge. The liquid pumping mechanism pumps the liquid in the closed chamber, and prevents the liquid in the liquid pumping mechanism from flowing back to the closed chamber. The l…
- Who is the assignee on this patent?
- Yang Ming-Lu, Zhang Ya-Dong, Zhang tian-en, and 2 more
- What technology area does this patent fall under?
- Primary CPC classification E03F1/006. Mapped technology areas include Fixed Constructions.
- When was this patent published?
- Publication date Tue Jun 30 2015 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).