Coating method using enamel and equipment for carrying out the method
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Apr 18, 2017
Issued Date -
N/A
app pub date -
Jun 10, 2014
filing date -
Jun 10, 2014
priority date (Note) -
In Force
status (Latency Note)
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Abstract
Provided are an enamel coating method and apparatus. The enamel coating method includes (a) preprocessing a surface of the metal tube by feeding the metal tube into a preprocessing chamber by an in-feed conveyor; (b) coating the surface of the metal tube with an enamel glaze supplied from an enamel glaze supply nozzle provided inside a coating chamber by feeding the preprocessed metal tube into the coating chamber; and (c) firing the coated metal tube by feeding the coated metal tube into a firing chamber, wherein the (b) coating includes spraying air toward the metal tube by an air spray nozzle provided inside the coating chamber.
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 | |
---|---|---|
BHI CO LTD | 165-2 JANGJI-RI GUNBUK-MYEON HAMAN-GUN GYEONGSANGNAM-DO |
International Classification(s)

- 2014 Application Filing Year
- B05C Class
- 528 Applications Filed
- 444 Patents Issued To-Date
- 84.10 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
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Woo, Jong Inn | Haman-gun, KR | 2 | 0 |
# of filed Patents : 2 Total Citations : 0 |
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Patent Citation Ranking
- 0 Citation Count
- B05C Class
- 0 % this patent is cited more than
- 8 Age
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- No Forward Cites to Display

Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
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11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Oct 18, 2028 |
Fee | Large entity fee | small entity fee | micro entity fee |
---|---|---|---|
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
Date | Code | Event | Description |
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Feb 26, 2025 | PD | Priority Date | |
Oct 08, 2024 | MAFP | MAINTENANCE FEE PAYMENT | free format text: PAYMENT OF MAINTENANCE FEE, 8TH YR, SMALL ENTITY (ORIGINAL EVENT CODE: M2552); ENTITY STATUS OF PATENT OWNER: SMALL ENTITY year of fee payment: 8 |
Oct 07, 2020 | MAFP | MAINTENANCE FEE PAYMENT | free format text: PAYMENT OF MAINTENANCE FEE, 4TH YR, SMALL ENTITY (ORIGINAL EVENT CODE: M2551); ENTITY STATUS OF PATENT OWNER: SMALL ENTITY year of fee payment: 4 |
Apr 18, 2017 | I | Issuance | |
Mar 29, 2017 | STCF | INFORMATION ON STATUS: PATENT GRANT | free format text: PATENTED CASE |
Dec 10, 2015 | P | Published | |
Jun 10, 2014 | F | Filing | |
Jun 10, 2014 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:WOO, JONG INN;REEL/FRAME:033327/0159 Owner name: BHI CO., LTD., KOREA, REPUBLIC OF Effective Date: Jun 10, 2014 |

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