Facile chemically-resistant coatings
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jun 13, 2017
Grant Date -
N/A
app pub date -
May 15, 2015
filing date -
May 15, 2014
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
The present invention provides methods for preparing or repairing a chemically-resistant coating such as a porcelain enamel on a metal substrate. One such method involves forming a ground coat on the substrate, cooling the substrate to substantially near ambient temperature, optionally by applying a heat source to cool the substrate slowly, followed by flame-spray depositing a coating material onto the softened ground coat. Then, the substrate is allowed to cool slowly so the chemically-resistant coating can form with less stress. Optionally, an induction coil is used to heat the substrate, both to form the ground coat and to slow the cooling of the substrate. Such methods allow for easier and faster repairs, and even in situ repairs of articles such as chemical reactor vessels, covers, baffles, thermowells, agitators, agitator shafts, pipes, heat exchangers, and storage tanks, as well as white goods such as ovens, stoves, washing machines, driers, in addition to bathtubs, sinks, and shower stalls, in addition to steel girders and steel reinforcing bars. Articles having a chemically-resistant coating also form a part of the invention.
First Claim
Other Claims data not available
Family
International Classification(s)
- 2015 Application Filing Year
- C23C Class
- 3009 Applications Filed
- 2118 Patents Issued To-Date
- 70.39 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 1 Citation Count
- C23C Class
- 27.20 % this patent is cited more than
- 8 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Dec 13, 2024 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Dec 13, 2028 |