Motor vehicles – With means for promoting safety of vehicle – its occupant or... – By preventing unauthorized or unintended access or use
Patent
1994-09-19
1995-05-16
Focarino, Margaret A.
Motor vehicles
With means for promoting safety of vehicle, its occupant or...
By preventing unauthorized or unintended access or use
89 111, 222 3, 239289, 239463, B60R 2500
Patent
active
054152461
ABSTRACT:
A gas projection apparatus for disabling the engine of an automobile being ursued by, for example, a police cruiser. The gas projection apparatus comprises a housing having a charging chamber which receives carbon dioxide gas under pressure from an external source of supply. The charging chamber is partially sealed by a blast valve which is attached to a movable shaft centrally located within the housing. There is also attached to the movable shaft a diaphragm which is positioned in a rear chamber of the housing adjacent the charging chamber. Carbon dioxides from the charging chamber is supplied to the rear chamber exerting a force on the diaphragm. When the force exerted by carbon dioxide gas on the diaphragm exceeds a predetermined pressure level, the diaphragm moves the shaft unseating the blast valve which the pressurized carbon dioxide gas to enter a wave shaping chamber within the housing. A pair of annular ports at the front end of the housing receive the pressurized carbon dioxide gas from the wave shaping chamber and, in combination, with the wave shaping chamber form a train of ring vortices of carbon dioxide gas. The train of ring vortices of carbon dioxide gas is directed to the engine of the automobile being pursued causing the automobile to slow and eventually stall.
REFERENCES:
patent: 1364152 (1921-01-01), Steinmetz
patent: 3788527 (1974-01-01), Matson
patent: 4762198 (1988-08-01), Vagnone et al.
patent: 4790406 (1988-12-01), Ferrell
patent: 4880147 (1989-11-01), Tolan
Dickson Paul N.
Focarino Margaret A.
Kalmbaugh David S.
The United States of America as represented by the Secretary of
LandOfFree
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