Claims
- 1. A metal foil less than 10 mils thick having a porous pyrophoric surface, the pyrophoricity of that surface being partially blocked by an added stratum of colloidally sized inert particles.
- 2. The combination of claim 1 in which the added stratum includes an ethanolamine compound.
- 3. A pyrophoric compact essentially of pyrophoric iron powder and easily ignited combustible boron, the proportion of the pyrophoric powder being large enough so that when the member is exposed to oxygen the powder generates sufficient heat to ignite the boron.
Parent Case Info
This Application is a continuation-in-part of applications Ser. No. 230,333, filed Feb. 2, 1981, now U.S. Pat. No. 4,347,267, and Ser. No. 191,780, filed Sept. 29, 1980, now abandoned, and Ser. No. 172,938, filed July 28, 1980, now abandoned and Ser. No. 172,671, filed July 28, 1980, U.S. Pat. No. 4,435,481, and Ser. No. 25,456, filed Mar. 30, 1979, now U.S. Pat. No. 4,349,612, and the last two of which are in turn continuations-in-part of application Ser. No. 963,313 filed Nov. 27, 1978 and subsequently abandoned. Ser. No. 230,333 is a continuation-in-part of prior application Ser. No. 89,949 filed Oct. 31, 1979 and subsequently abandoned.
US Referenced Citations (23)
Foreign Referenced Citations (1)
Number |
Date |
Country |
1344609 |
Jan 1974 |
GBX |
Non-Patent Literature Citations (5)
Entry |
"Initiation and Propogation of Combustion in Gasless Pyrotechnics", Boddington, T., et al., Symp. Chem. Probl. Connected Stab. Explos., 1979, Chem Abstracts, 95:83154p. |
"Heatsource for Thermal Batteries", Prentice, Jack L., U.S. 4,158,084, Jun. 1979, Chemical Abstracts, 91:94415t. |
"Treatment of Aluminum Anodic Film with Ethanolamine-Containing Aqueous Solutions", Nakasugawa, Chemical Abstracts 78:51778c, 1972. |
"Treating Aluminum Articles for Sealing ", Yamada et al., Chemical Abstracts, 81:174,990k, 1974. |
"Aliphatic Amine-Containing Liquid Exposives", Fujihara et al., Chemical Abstracts, 84:7212p, 1976. |
Continuation in Parts (3)
|
Number |
Date |
Country |
Parent |
230333 |
Feb 1981 |
|
Parent |
963313 |
Nov 1978 |
|
Parent |
89949 |
Oct 1979 |
|