US2860041A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Blasting explosives
Assignee: Trojan Powder Co
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Filing: 1955-11-17
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Granted: 1958-11-11
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Expires: 1975-11-17
Abstract
No abstract record available.
Inventors
- 👤 Jr George L Griffith
- 👤 Jr David G Samuel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:43
CPC Classifications
C; C06; C06B; C06B25/00; C06B25/02; C06B31/00; C06B31/28; C06B31/32; C06B31/34; C06B47/00; C06B47/14; Y; Y10; Y10S; Y10S149/00; Y10S149/11
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
149 words
IN MAKING AN EXPLOSIVE COMPOSITION OF REDUCED HAZARD DURING MANUFACTURE AND SUBSTANTIALLY FULL SENSITIVENESS TO DETONATION AT THE TIME OF USE, THE PROCESS WHICH COMPRISES MIXING NITROSTARCH IN WATER WET CONDITION, THE WATER CONTENT BEING 15-35 PARTS BY WEIGHT FOR 100 OF THE NITROSTARCH ON THE DRY BASIS, WITH A SOLID, FINELY DIVIDED, NON-HYGROSCOPIC WATER ABSORBENT SELECTED FROM THE GROUP CONSISTING OF LOCUST BEAN GUM EXTRACT, GUM KARAYA, AND AN ALKALI METAL SALT OF CARBOCYMETHYLCELLULOSE, THE ABSORBENT BEING IN THE PROPORTION OF ABOUT 7-80 PARTS BY WEIGHT FOR 100 OF WATER IN THE EXPLOSIVE, SERVING AS A WATER ABSORBING LATENT SENSITIZER OF THE COMPOSITION AND, IN ABSORBING WATER, FORMING FIRST A VISCOUS SWOLLEN SURFACE LAYER OVER THE PARTICLES OF THE ABSORBENT AND THIS VISCOUS LAYER DELAYING SUBSEQUENT ABSORPTION SO THAT WATER IS NOT ABSORBED FROM THE NITROSTARCH IN AMOUNT TO SENSITIZE THE EXPLOSIVE UNTIL THE MANUFACTURING OPERATION IS COMPLETED.
Claim 2
Dependent Claim
149 words
IN MAKING AN EXPLOSIVE COMPOSITION OF REDUCED HAZARD DURING MANUFACTURE AND SUBSTANTIALLY FULL SENSITIVENESS TO DETONATION AT THE TIME OF USE, THE PROCESS WHICH COMPRISES MIXING NITROSTARCH IN WATER WET CONDITION, THE WATER CONTENT BEING 15-35 PARTS BY WEIGHT FOR 100 OF THE NITROSTARCH ON THE DRY BASIS, WITH A SOLID, FINELY DIVIDED, NON-HYGROSCOPIC WATER ABSORBENT SELECTED FROM THE GROUP CONSISTING OF LOCUST BEAN GUM EXTRACT, GUM KARAYA, AND AN ALKALI METAL SALT OF CARBOCYMETHYLCELLULOSE, THE ABSORBENT BEING IN THE PROPORTION OF ABOUT 7-80 PARTS BY WEIGHT FOR 100 OF WATER IN THE EXPLOSIVE, SERVING AS A WATER ABSORBING LATENT SENSITIZER OF THE COMPOSITION AND, IN ABSORBING WATER, FORMING FIRST A VISCOUS SWOLLEN SURFACE LAYER OVER THE PARTICLES OF THE ABSORBENT AND THIS VISCOUS LAYER DELAYING SUBSEQUENT ABSORPTION SO THAT WATER IS NOT ABSORBED FROM THE NITROSTARCH IN AMOUNT TO SENSITIZE THE EXPLOSIVE UNTIL THE MANUFACTURING OPERATION IS COMPLETED.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-11-10 | 1962-05-12 | 1962-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-11-10 | 1966-05-12 | 1966-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-11-10 | 1970-05-12 | 1970-11-11 | $7700.00 | Window Closed / Lapsed |