Did You Know...
...that Kleenex tissue was originally designed to be a gas mask filter? It was developed at the beginning of World War I to replace cotton, which was then in short supply as a surgical dressing.
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| Number | Title | Issue Date |
| 7124574 | Method and apparatus for a substantially coaxial injector element A system to provide a two piece robust fluid injector. According to various embodiments, the fluid injector is a fuel injector for a combustion engine. The injector includes two coaxially formed annuluses. One annulus is formed in a face plate and the second annulus... | 10/24/2006 |
| 5394685 | Method and apparatus to enhance combustion rates and extend extinction limits in high speed propulsion units A stream of hydrocarbon fuel is catalytically decomposed to produce hydrogen and lower molecular weight fuel fragments, which may separated by molecular size. The hydrogen and low molecular weight fuel fragments are introduced along with a stream of nonde... | 03/07/1995 |
| 5333445 | Scramjet engine having improved fuel/air mixing A scramjet engine for powering an aircraft at supersonic velocities is disclosed. The scramjet engine includes supersonic compressed airflow in a combustor along with a fuel for providing combustion. A monopropellant is also supplied adjacent to the airfl... | 08/02/1994 |
| 4878968 | Oxidizing salts of cubyl amines A compound having the following formula: ##STR1## wherein R1 is --N+ H3 as found in claim 1 and R2 is either the same as F1 or hydrogen. "A" is an oxidizing anion, and X is selected to provide a ... | 11/07/1989 |
| 4635885 | Space maneuvering vehicle control thruster Disclosed is a single control thruster having the expanded capability of operating at various thrust levels and more than one propellant fluid so that the number of control thrusters for a maneuvering vehicle can be reduced to one third from that now requ... | 01/13/1987 |
