Bladder-type pressure tank and preparation method thereof
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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May 21, 2024
Grant Date -
Jan 5, 2023
app pub date -
Sep 14, 2022
filing date -
Sep 14, 2022
priority date (Note) -
In Force
status (Latency Note)
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Importance

US Family Size
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Non-US Coverage
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Abstract
A bladder-type pressure tank includes an outer shell, a bladder, a nozzle, and an elbow pipe. The outer shell includes a liner and a glass-fiber layer covering the outer surface of the liner. The liner includes polyethylene (PE). The liner further includes a chamber, a first opening, and a second opening. The bladder is disposed in the chamber. In an inflated state of the bladder, a gap is formed between the inflated bladder and the inner surface of the liner. The bladder includes polyurethane (PU). The nozzle is integrated with the bladder, and is disposed in the first opening and seals the first opening. The elbow pipe includes a first end and a second end. The first end of the elbow pipe is disposed in the second opening and communicates with the chamber; and the second end of the elbow pipe is configured to connect to a pipeline.
First Claim
all claims..Other Claims data not available
Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
XI'AN SUNWARD AEROMAT CO LTD | NO 32 TUANJIE SOUTH ROAD HI-TECH DEVELOPMENT ZONE XI'AN 710065 |
International Classification(s)

- 2022 Application Filing Year
- B29D Class
- 579 Applications Filed
- 210 Patents Issued To-Date
- 36.27 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Du, Xiangrong | Xi'an, CN | 1 | 0 |
# of filed Patents : 1 Total Citations : 0 | |||
Du, Zeqiang | Xi'an, CN | 1 | 0 |
# of filed Patents : 1 Total Citations : 0 | |||
Hu, Liang | Xi'an, CN | 153 | 574 |
# of filed Patents : 153 Total Citations : 574 | |||
Li, Dongshuang | Xi'an, CN | 2 | 1 |
# of filed Patents : 2 Total Citations : 1 | |||
Liu, Hongshang | Xi'an, CN | 1 | 0 |
# of filed Patents : 1 Total Citations : 0 | |||
Lyu, Guangpu | Xi'an, CN | 1 | 0 |
# of filed Patents : 1 Total Citations : 0 | |||
Zhang, Chaogang | Xi'an, CN | 4 | 0 |
# of filed Patents : 4 Total Citations : 0 | |||
Zhang, Lijun | Xi'an, CN | 174 | 2085 |
# of filed Patents : 174 Total Citations : 2085 |
Cited Art Landscape
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Patent Citation Ranking
- 0 Citation Count
- B29D Class
- 0 % this patent is cited more than
- 1 Age
Forward Cite Landscape
- No Forward Cites to Display

Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
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3.5 Year Payment | $1600.00 | $800.00 | $400.00 | Nov 21, 2027 |
7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Nov 21, 2031 |
11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Nov 21, 2035 |
Fee | Large entity fee | small entity fee | micro entity fee |
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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 |
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Mar 19, 2020 | P | Published | |
Jan 02, 2020 | STPP | INFORMATION ON STATUS: PATENT APPLICATION AND GRANTING PROCEDURE IN GENERAL | free format text: APPLICATION DISPATCHED FROM PREEXAM, NOT YET DOCKETED |
Nov 19, 2019 | F | Filing | |
Nov 19, 2019 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:HUF, ANDREAS;HUFNAGL, KLAUS;KLEINDL, SYLVIA;AND OTHERS;SIGNING DATES FROM 20190913 TO 20191022;REEL/FRAME:051051/0568 Owner name: BAYERISCHE MOTOREN WERKE AKTIENGESELLSCHAFT, GERMANY |
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