US2865785A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Methods of coating catalyst carriers
Assignee: Calcinator Corp
•
Filing: 1955-04-06
•
Granted: 1958-12-23
•
Expires: 1975-04-06
Abstract
No abstract record available.
Inventors
- 👤 Henry L Coles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 15:53
CPC Classifications
B; B01; B01J; B01J23/00; B01J23/38; B01J23/40; B01J23/44; B01D; B01D53/00; B01D53/34; B01D53/74; B01D53/86; B01D53/864; B01J23/42; B01J37/00; B01J37/02; B01J37/0215; B01J37/03
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
109 words
A PROCESS FOR COATING A ROUGH SURFACE CATALYST CARRIER WITH METALLIC CATALYST SELECTED FROM THE GROUP CONSISTING OF PLATINUM, PALLADIUM, A COMBINATION OF PLATINUM AND PALLADIUM, AND COMPOUNDS THEREOF, SAID PROCESS COMPRISING THE STEPS OF APPLYING A FLAME REDUCIBLE CATALYST COMPOUND IN SOLUTION TO THE ROUGH SURFACE OF THE CARRIER TO COAT THE CARRIER, AND FIRING THE COATED CARRIER IN AN OPEN FLAME WHICH CONTACTS THE CARRIER TO REDUCE CATALYST COMPOUND TO FREE CATALYTIC METAL AND FIX FREE CATALYTIC METAL TO THE CARRIER; SAID FLAME HEATING THE COATED CARRIER AT TEMPERATURES ABOVE THE DECOMPOSITION TEMPERATURE OF THE CATALYST COMPOUND AND BELOW THE MELTING POINT OF THE FREE CATALYTIC METAL.
Claim 2
Dependent Claim
109 words
A PROCESS FOR COATING A ROUGH SURFACE CATALYST CARRIER WITH METALLIC CATALYST SELECTED FROM THE GROUP CONSISTING OF PLATINUM, PALLADIUM, A COMBINATION OF PLATINUM AND PALLADIUM, AND COMPOUNDS THEREOF, SAID PROCESS COMPRISING THE STEPS OF APPLYING A FLAME REDUCIBLE CATALYST COMPOUND IN SOLUTION TO THE ROUGH SURFACE OF THE CARRIER TO COAT THE CARRIER, AND FIRING THE COATED CARRIER IN AN OPEN FLAME WHICH CONTACTS THE CARRIER TO REDUCE CATALYST COMPOUND TO FREE CATALYTIC METAL AND FIX FREE CATALYTIC METAL TO THE CARRIER; SAID FLAME HEATING THE COATED CARRIER AT TEMPERATURES ABOVE THE DECOMPOSITION TEMPERATURE OF THE CATALYST COMPOUND AND BELOW THE MELTING POINT OF THE FREE CATALYTIC METAL.
References Cited (Backward Citations)
US1010914A
Cited
US1940934A
Cited
US2197792A
Cited
US2328101A
Cited
US2498003A
Cited
US2623860A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-12-22 | 1962-06-23 | 1962-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-22 | 1966-06-23 | 1966-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-22 | 1970-06-23 | 1970-12-23 | $7700.00 | Window Closed / Lapsed |