Patent US3787230A successfully refreshed from Google Patents.
US3787230A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of applying powder paint
Assignee: Grow Chemical Corp
•
Filing: 1971-10-06
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Granted: 1974-01-22
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Expires: 1991-10-06
Abstract
Abstract Powder paint is applied to an article to be coated by forming a slurry of substantially uniformly suspended non-water soluble powder paint in water, while maintaining the powder in such substantially uniform suspension coating the surface to be painted with said slurry, and thereafter evaporating the water from the slurry coating and curing the powder paint to form a substantially continuous uniform paint film on the article. Where the slurry is applied by spraying, overspray is collected, the powder paint filtered therefrom and re-mixed in the slurry being sprayed.
Inventors
- 👤 E Hoffman
- 👤 R Sikorski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 07:03
CPC Classifications
B; B05; B05D; B05D3/00; B05D3/02; B05D3/0254; B05D1/00; B05D1/02; B05D1/18; B05D3/10; B05D7/00; B05D7/24; B05D7/26; B05D2401/00; B05D2401/20
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
25 words
A method of painting as in claim 1 wherein the powder paint is heated to effect evaporation of the water and coalescence of the powder.
Claim 2
Dependent Claim
16 words
A method of painting as in claiM 1 wherein the slurry is sprayed on the surface.
Claim 3
Dependent Claim
19 words
A method of painting as in claim 1 wherein the article to be coated is dipped in the slurry.
Claim 4
Dependent Claim
29 words
The method of painting as in claim 1 wherein a solvent for the powder is applied thereto following evaporation of the water to soften the powder and effect coalescence.
Claim 5
Dependent Claim
40 words
The method of painting as in claim 1 wherein the slurry is sprayed on to the surface to be coated, collecting the overspray, filtering the powder paint therefrom, and re-mixing the powder paint thus filtered into the slurry being sprayed.
Claim 6
Dependent Claim
27 words
The method of painting as in claim 6 wherein the overspray is collected in a water curtain, collecting the water curtain and filtering the powder paint therefrom.
References Cited (Backward Citations)
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Cited
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-01-21 | 1977-07-23 | 1978-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-21 | 1981-07-23 | 1982-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-21 | 1985-07-23 | 1986-01-22 | $7700.00 | Window Closed / Lapsed |