Patent US4314005A successfully refreshed from Google Patents.
US4314005A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for coating ferrous metal articles and resulting articles
Assignee: Individual
•
Filing: 1980-06-12
•
Granted: 1982-02-02
•
Expires: 2000-06-12
Abstract
Abstract A process is described for thermo-chemically coating ferrous metal articles, especially small intricate ferrous articles. The process involves preparing a coating composition for homogenizing a complex of metal oxides and other solids in an organic liquid composition to obtain an emulsion, pre-heating the ferrous articles to an elevated temperature, immersing the pre-heated ferrous articles in the coating composition, withdrawing the articles and allowing them to cool.
Inventors
- 👤 Jose V. Arias
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:36
CPC Classifications
C; C23; C23C; C23C8/00; C23C8/04; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31678; Y10T428/31714
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
172 words
A process for thermo-chemically coating ferrous metal articles, comprising: (1) forming a uniform composition consisting essentially of: (a) 450 grams±10% of magnesium oxide (b) 170 grams±10% of zinc oxide (c) 80 grams±10% of lead dioxide (d) 80 grams±10% of lead pentoxide (e) 170 grams±10% of chromium oxide (f) 200 grams±10% of aluminum oxide (g) 240 grams±10% of manganese oxide (h) 250 grams±10% of cobalt oxide (i) 200 grams±10% of vanadium oxide (j) 309 grams±10% of copper oxide (k) 250 grams±10% of powdered lithium (l) 185 grams±10% of sodium hyposulphite (m) 3 liters±10% of neatsfoot oil (n) 5 liters±10% of African palm oil (o) 9.5 liters±10% of heavy transmission oil of 160 to 170 density (p) 3 liters±10% of creosote; (2) pre-heating a ferrous article to be treated to a temperature of about 678° C. in an oven with an oxidizing flame; (3) immersing the pre-heated ferrous article in, or otherwise contacting the surfaces of the pre-heated ferrous article with, the composition formed in step (1) for a minimum of 30 seconds; and
Claim 2
Dependent Claim
172 words
A process for thermo-chemically coating ferrous metal articles, comprising: (1) forming a uniform composition consisting essentially of: (a) 450 grams±10% of magnesium oxide (b) 170 grams±10% of zinc oxide (c) 80 grams±10% of lead dioxide (d) 80 grams±10% of lead pentoxide (e) 170 grams±10% of chromium oxide (f) 200 grams±10% of aluminum oxide (g) 240 grams±10% of manganese oxide (h) 250 grams±10% of cobalt oxide (i) 200 grams±10% of vanadium oxide (j) 309 grams±10% of copper oxide (k) 250 grams±10% of powdered lithium (l) 185 grams±10% of sodium hyposulphite (m) 3 liters±10% of neatsfoot oil (n) 5 liters±10% of African palm oil (o) 9.5 liters±10% of heavy transmission oil of 160 to 170 density (p) 3 liters±10% of creosote; (2) pre-heating a ferrous article to be treated to a temperature of about 678° C. in an oven with an oxidizing flame; (3) immersing the pre-heated ferrous article in, or otherwise contacting the surfaces of the pre-heated ferrous article with, the composition formed in step (1) for a minimum of 30 seconds; and
Claim 3
Dependent Claim
20 words
(4) removing the ferrous article from contact with the composition formed in step (1) and allowing the article to cool.
Claim 4
Dependent Claim
20 words
(4) removing the ferrous article from contact with the composition formed in step (1) and allowing the article to cool.
Claim 5
Dependent Claim
21 words
A process as in claim 1 wherein the ferrous article is pre-heated to a temperature of 678° C. to 680° C.
Claim 6
Dependent Claim
37 words
A process as in claim 1, wherein the pre-heated ferrous article is immersed in, or otherwise contacted on the surfaces thereof with, the composition formed in step (2) for a period of between 30 and 90 seconds.
Claim 7
Dependent Claim
220 words
A process for thermo-chemically coating ferrous metal articles comprising: (1) thoroughly mixing powders of: (a) 450 grams±10% of magnesium oxide (b) 170 grams±10% of zinc oxide (c) 80 grams±10% of lead dioxide (d) 80 grams±10% of lead pentoxide (e) 170 grams±10% of chromium oxide (f) 200 grams±10% of aluminum oxide (g) 240 grams±10% of manganese oxide (h) 250 grams±10% of cobalt oxide (i) 200 grams±10% of vanadium oxide (j) 309 grams±10% of copper oxide (k) 250 grams±10% of powdered lithium (l) 185 grams±10% of sodium hyposulphite (2) thoroughly mixing the mixture of step (1) with a mixture of: (a) 3 liters±10% of neatsfoot oil (b) 5 liters±10% of African palm oil (c) 9.5 liters±10% of heavy transmission oil of 160 to 170 density (d) 3 liters±10% of creosote to form a uniform composition of the powder mixture of step (1) in the liquid mixture of step (2); (3) pre-heating a ferrous article to be treated to a temperature of about 678° C. in an oven with an oxidizing flame; (4) immersing the pre-heated ferrous article in, or otherwise contacting the surfaces of the pre-heated ferrous article with, the composition formed in step (2) for a minimum of 30 seconds; and (5) removing the ferrous article from contact with the composition formed in step (2) and allowing the article to cool.
Claim 8
Dependent Claim
220 words
A process for thermo-chemically coating ferrous metal articles comprising: (1) thoroughly mixing powders of: (a) 450 grams±10% of magnesium oxide (b) 170 grams±10% of zinc oxide (c) 80 grams±10% of lead dioxide (d) 80 grams±10% of lead pentoxide (e) 170 grams±10% of chromium oxide (f) 200 grams±10% of aluminum oxide (g) 240 grams±10% of manganese oxide (h) 250 grams±10% of cobalt oxide (i) 200 grams±10% of vanadium oxide (j) 309 grams±10% of copper oxide (k) 250 grams±10% of powdered lithium (l) 185 grams±10% of sodium hyposulphite (2) thoroughly mixing the mixture of step (1) with a mixture of: (a) 3 liters±10% of neatsfoot oil (b) 5 liters±10% of African palm oil (c) 9.5 liters±10% of heavy transmission oil of 160 to 170 density (d) 3 liters±10% of creosote to form a uniform composition of the powder mixture of step (1) in the liquid mixture of step (2); (3) pre-heating a ferrous article to be treated to a temperature of about 678° C. in an oven with an oxidizing flame; (4) immersing the pre-heated ferrous article in, or otherwise contacting the surfaces of the pre-heated ferrous article with, the composition formed in step (2) for a minimum of 30 seconds; and (5) removing the ferrous article from contact with the composition formed in step (2) and allowing the article to cool.
Claim 9
Dependent Claim
21 words
A process as in claim 4 wherein the ferrous article is pre-heated to a temperature of 678° C. to 680° C.
Claim 10
Dependent Claim
37 words
A process as in claim 4 wherein the pre-heated ferrous article is immersed in, or otherwise contacted on the surfaces thereof with, the composition formed in step (1) for a period of between 30 and 90 seconds.
Claim 11
Dependent Claim
18 words
A ferrous metal article thermo-chemically coated by the process of claim 1, 2, 3, 4, 5, or 6.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-02-01 | 1985-08-03 | 1986-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-02-01 | 1989-08-03 | 1990-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-02-01 | 1993-08-03 | 1994-02-02 | $7700.00 | Window Closed / Lapsed |