Ordnance – Line throwing
Patent
1986-11-24
1988-11-15
Kyle, Deborah L.
Ordnance
Line throwing
102504, 89 281, F41F 504
Patent
active
047840358
ABSTRACT:
A throwing device including, a throwing gun formed by a high pressure chamber located within a low pressure chamber. A first frangible diaphragm having a predetermined breaking pressure interconnecting the two chambers. A second frangible diaphragm closing off the lower pressure chamber and having a predetermined breaking pressure lower than the breaking pressure of the first diaphragm. A barrel mounted adjacent to and extending from the second frangible diaphragm. A projectile located within the barrel. A main charge substantially located within the high pressure chamber and an ignition charge coupled to the main charge for igniting the main charge upon activation of the ignition charge. The ignition of the main charge providing for the production of rapid burning forming gas having an increasing pressure within the high pressure chamber. When the pressure reaches the predetermined breaking pressure for the first flangible diaphragm, the first diaphragm bursts to allow the high pressure gas to escape by rapidly expanding into the low pressure chamber. When the pressure in the low pressure chamber raeches the predetermined breaking pressure for the second flangible diaphragm, the second diaphragm bursts to allow the low pressure gas to escape into the barrel to propel the projectile located within the barrel.
REFERENCES:
patent: 2472136 (1949-06-01), Whitlock
patent: 3505926 (1970-04-01), Johnson
patent: 3837107 (1974-09-01), Swaim et al.
patent: 4077349 (1978-03-01), Paul
patent: 4189703 (1980-02-01), Bennett
patent: 4275680 (1981-06-01), Pennington et al.
Fishfader Stanley S.
Friezner Sanford
Kirkeide Keith L.
Putzke Stanley G.
Singer Stanley J.
Johnson Stephen
Kyle Deborah L.
Roston Ellsworth R.
Schwartz Charles H.
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