Patent US1782078A successfully refreshed from Google Patents.
Patent US3634153A successfully refreshed from Google Patents.
US3634153A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Noncorrosive pyrotechnic composition
Assignee: United States Department of the Army
•
Filing: 1970-02-03
•
Granted: 1972-01-11
•
Expires: 1990-02-03
Abstract
Abstract A noncorrosive pyrotechnic igniter composition in combination with corrosive pyrotechnic tracer compositions for use in very small tracer cavities. A noncorrosive igniter composed of lead dioxide as the noncorrosive oxidizer, zirconium as the fuel and stabilized red phosphorus as the sensitizer all in predetermined proportions, prevents the premature ignition of the corrosive tracer composition.
Inventors
- 👤 William E Perkins
- 👤 Thomas Q Ciccone
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:51
CPC Classifications
C; C06; C06B; C06B33/00; C06B33/02; C06B39/00; C06B39/06; C06C; C06C9/00; Y; Y10; Y10S; Y10S149/00; Y10S149/11; Y10S149/114; Y10S149/117
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
30 words
An igniter composition in accordance with claim 1 consisting essentially of lead dioxide 68.25 weight percent zirconium (diameter approx. 40 microns) 29.25 weight percent stabilized red phosphorus 2.50 weight percent
Claim 2
Dependent Claim
47 words
An igniter composition in accordance with claim 2 wherein said corrosive pyrotechnic tracer compositions include a composition consisting essentially of an oxidizer selected from the group consisting of potassium chlorate and potassium perchlorate, a fuel consisting of zirconium, and a binder consisting of vinyl alcohol acetate resin.
Claim 3
Dependent Claim
47 words
An igniter composition in accordance with claim 1 wherein said corrosive pyrotechnic tracer compositions include a composition consisting essentially of an oxidizer selected from the group consisting of potassium chlorate and potassium perchlorate, a fuel consisting of zirconium, and a binder consisting of vinyl alcohol acetate resin.
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) | 1975-01-10 | 1975-07-12 | 1976-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-10 | 1979-07-12 | 1980-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-10 | 1983-07-12 | 1984-01-11 | $7700.00 | Window Closed / Lapsed |