US2718463A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sensitized magnesium powder and method of producing same
Assignee: Individual
•
Filing: 1949-01-24
•
Granted: 1955-09-20
•
Expires: 1969-01-24
Abstract
No abstract record available.
Inventors
- 👤 Richard G Clarke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 05:08
CPC Classifications
C; C06; C06B; C06B45/00; C06B45/18; C06B45/30; C06B45/32; Y; Y10; Y10T; Y10T428/00; Y10T428/29
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
54 words
MAGNESIUM PARTICLES IN SUFFICIENTLY FINELY DIVIDED CONDITION AS TO BE READILY COMBUSTIBLE IN AIR AT ATMOSPHERIC PRESSURE AND TEMPERATURE, EACH OF SAID PARTICLES HAVING BEEN TREATED WITH DILUTE AMMONIUM HYDROXIDE OF ABOUT 0.9508 SP.GR. FOR ABOUT 30 TO 90 SECONDS FOLLOWED BY QUICK SEPARATION FROM THE AMMONIUM HYDROXIDE AND BY DRUING AT MODERATE TEMPERATURES
Claim 2
Dependent Claim
54 words
MAGNESIUM PARTICLES IN SUFFICIENTLY FINELY DIVIDED CONDITION AS TO BE READILY COMBUSTIBLE IN AIR AT ATMOSPHERIC PRESSURE AND TEMPERATURE, EACH OF SAID PARTICLES HAVING BEEN TREATED WITH DILUTE AMMONIUM HYDROXIDE OF ABOUT 0.9508 SP.GR. FOR ABOUT 30 TO 90 SECONDS FOLLOWED BY QUICK SEPARATION FROM THE AMMONIUM HYDROXIDE AND BY DRUING AT MODERATE TEMPERATURES
Claim 3
Dependent Claim
15 words
MAGNESIUM ACCORDING TO CLAIM 1, WHICH IS COATED WITH A THIN COATING OF A FUCHSONE.
Claim 4
Dependent Claim
86 words
THE PROCESS OF TREATING MAGNESIUM IN FINELY DIVIDED POWDER OR FLAKE FORM WHICH COMPRISES CONTACTING THE MAGNESIUM WITH AMMONIUM HYDROXIDE AQUEOUS SOLUTION OF WHICH ABOUT ONE-EIGHTH OF ITS WEIGHT IS NH3, CONTINUING THE CONTACT FOR ABOUT THIRTY TO NINETY SECONDS, SEPARATING THE AMMONIUM HYDROXIDE AND THE MAGNESIUM AS QUICKLY AS POSSIBLE, AND DRYING THE MAGNESIUM IN A LAYER NOT THICKER THAN ONE INCH AT A TEMPERATURE BETWEEN 150* F. AND 215* F., WHEREBY THE BURNING RATE OF THE MAGNESIUM IN OPEN AIR WILL BE SUBSTANTIALLY INCREASED.
Claim 5
Dependent Claim
86 words
THE PROCESS OF TREATING MAGNESIUM IN FINELY DIVIDED POWDER OR FLAKE FORM WHICH COMPRISES CONTACTING THE MAGNESIUM WITH AMMONIUM HYDROXIDE AQUEOUS SOLUTION OF WHICH ABOUT ONE-EIGHTH OF ITS WEIGHT IS NH3, CONTINUING THE CONTACT FOR ABOUT THIRTY TO NINETY SECONDS, SEPARATING THE AMMONIUM HYDROXIDE AND THE MAGNESIUM AS QUICKLY AS POSSIBLE, AND DRYING THE MAGNESIUM IN A LAYER NOT THICKER THAN ONE INCH AT A TEMPERATURE BETWEEN 150* F. AND 215* F., WHEREBY THE BURNING RATE OF THE MAGNESIUM IN OPEN AIR WILL BE SUBSTANTIALLY INCREASED.
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) | 1958-09-19 | 1959-03-21 | 1959-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-09-19 | 1963-03-21 | 1963-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-09-19 | 1967-03-21 | 1967-09-20 | $7700.00 | Window Closed / Lapsed |