Active sorting muck-collecting device for slurry balancing shield
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Nov 1, 2022
Grant Date -
Oct 28, 2021
app pub date -
Jul 8, 2021
filing date -
Sep 5, 2019
priority date (Note) -
In Force
status (Latency Note)
![]() |
A preliminary load of PAIR data current through [] has been loaded. Any more recent PAIR data will be loaded within twenty-four hours. |
PAIR data current through []
A preliminary load of cached data will be loaded soon.
Any more recent PAIR data will be loaded within twenty-four hours.
![]() |
Next PAIR Update Scheduled on [ ] |

Importance

US Family Size
|
Non-US Coverage
|
Abstract
The present application discloses an active sorting muck-collecting device for slurry balancing shield, aiming at solving a technical problem that an existing muck-collecting device cannot provide reliable sorting function for a shield slurry circulation system. The device includes a sorting stirring cylinder, a circulation pipeline and a muck-collecting box, the sorting stirring cylinder includes an outer cylinder and a rotatable grid cylinder coaxially-configured. The grid cylinder is configured with a rotating shaft, and a spiral conveying mechanism is fixedly configured inside. The rotating shaft is fixedly connected with the grid cylinder. A circulation pipeline communicated with the grid cylinder is correspondingly configured below the grid cylinder. A muck-collecting box is fixedly configured below the circulation pipeline, and the muck-collecting box is communicated with the grid cylinder at where an output end of a slurry discharging pipeline locates.

First Claim
Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
CHINA RAILWAY TUNNEL GROUP CO LTD | 511458 NO 2 WEST SIDE OF GONGYE 4TH ROAD MINGZHUWAN STARTING AREA NANSHA DISTRICT GUANGZHOU CITY GUANGDONG PROVINCE (OFFICE USE ONLY) (SELF DECLARATION) (MZ) GUANGZHOU CITY GUANGDONG PROVINCE 511458 | |
CHINA RAILWAY TUNNEL STOCK CO LTD | NO 99 SCIENCE AVENUE ZHENGZHOU HIGH-TECH INDUSTRIAL DEVELOPMENT ZONE HENAN PROVINCE ZHENGZHOU CITY HENAN PROVINCE 450001 |
International Classification(s)

- [Classification Symbol]
- [Patents Count]
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Dong, Wenqi | Zhengzhou, CN | 3 | 1 |
Guo, Maoyuan | Zhengzhou, CN | 1 | 0 |
Li, Jiange | Zhengzhou, CN | 2 | 12 |
Li, Jiwei | Zhengzhou, CN | 4 | 3 |
Liu, Minghui | Zhengzhou, CN | 33 | 42 |
Liu, Zhaobin | Zhengzhou, CN | 2 | 0 |
Ma, Jian | Zhengzhou, CN | 218 | 1878 |
Tian, Yong | Zhengzhou, CN | 110 | 370 |
Wang, Chuanzhe | Zhengzhou, CN | 1 | 0 |
Wang, Yunfeng | Zhengzhou, CN | 20 | 65 |
Wang, Yushuang | Zhengzhou, CN | 3 | 0 |
Zhang, Guangpu | Zhengzhou, CN | 1 | 0 |
Zhang, Zhiming | Zhengzhou, CN | 49 | 181 |
Cited Art Landscape
- No Cited Art to Display

Patent Citation Ranking
Forward Cite Landscape
- No Forward Cites to Display

Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
---|---|---|---|---|
3.5 Year Payment | $1600.00 | $800.00 | $400.00 | May 1, 2026 |
7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | May 1, 2030 |
11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | May 1, 2034 |
Fee | Large entity fee | small entity fee | micro entity fee |
---|---|---|---|
Surcharge - 3.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
Surcharge - 7.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
Surcharge - 11.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
Full Text

Legal Events

Matter Detail

Renewals Detail

Note
The template below is formatted to ensure compatibility with our system.
Provide tags with | separated like (tags1|tags2).
Maximum length is 128 characters for Customer Application No
Mandatory Fields * - 'MatterType','AppType','Country','Title','SerialNo'.
Acceptable Date Format - 'MM/DD/YYYY'.
Acceptable Filing/App Types -
- Continuation/Divisional
- Original
- Paris Convention
- PCT National
- With Priority
- EP Validation
- Provisional Conversion
- Reissue
- Provisional
- Foreign Extension
Acceptable Status -
- Pending
- Abandoned
- Unfiled
- Expired
- Granted
Acceptable Matter Types -
- Patent
- Utility Model
- Supplemental Protection Certificate
- Design
- Inventor Certificate
- Plant
- Statutory Invention Reg
Advertisement
Advertisement
Advertisement

Recipient Email Address

Recipient Email Address

Comment
Recipient Email Address

Success
E-mail has been sent successfully.
Failure
Some error occured while sending email. Please check e-mail and try again!
PAIR load has been initiated
A preliminary load of cached data will be loaded soon. Current PAIR data will be loaded within twenty four hours.
File History PDF
Thank you for your purchase! The File Wrapper for Patent Number 11484912 will be available within the next 24 hours.
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:

Last Refreshed On:
Changes done successfully
Important Notes on Latency of Status data
Please note there is up to 60 days of latency in this Status indicator for certain status conditions. You can obtain up-to-date Status indicator readings by ordering PAIR for the file.
An application with the status "Published" (which means it is pending) may be recently abandoned, but not yet updated to reflect its abandoned status. However, an application filed less than one year ago is unlikely to be abandoned.
A patent with the status "Granted" may be recently expired, but not yet updated to reflect its expired status. However, it is highly unlikely a patent less than 3.5 years old would be expired.
An application with the status "Abandoned" is almost always current, but there is a small chance it was recently revived and the status not yet updated.
Important Note on Priority Date data
This priority date is an estimated earliest priority date and is purely an estimation. This date should not be taken as legal conclusion. No representations are made as to the accuracy of the date listed. Please consult a legal professional before relying on this date.
We are sorry but your current selection exceeds the maximum number of portfolios (0) for this membership level. Upgrade to our Level for up to -1 portfolios!.