Hydraulic and earth engineering – Earth treatment or control – Chemical
Patent
1984-10-29
1986-12-23
Husar, Cornelius J.
Hydraulic and earth engineering
Earth treatment or control
Chemical
405258, 60370, 222334, E02D 312, F15B 700
Patent
active
046309721
ABSTRACT:
An impulse injector apparatus operates to produce pulsed delivery of injected material, with the material moving during a delivery pulse at high velocity and under the urging of a compressed captured gas supply which is permitted to rapidly expand. The device includes an elongate cylinder and an actuating piston mounted for reciprocal movement within the cylinder. A captured compressible gas supply is located within a chamber which is defined between one end of the piston and one extremity of the cylinder. Another chamber is defined between the opposite end of the piston and the opposite extremity of the cylinder. A pressurized fluid is controllably admitted into the other chamber, thereby causing movement of the actuating cylinder towards the one extremity of the cylinder and resulting in compression of the captured gas supply. The control means then cause abrupt dumping of the pressure fluid from the other chamber whereupon the actuating piston is rapidly urged towards the opposite extremity of the cylinder under the effect of the captured gas supply. Material to be injected is received within an injection material chamber having an outlet at one end and injection piston movable within the chamber at the other end of the injection chamber. Means are provided to connect the actuating piston at the injection piston whereby movement of the actuating piston towards the opposite extremity of the cylinder produces movement of the injection piston towards the outlet end of the injection material chamber. A flexible conduit may be provided to connect the outlet to a nozzle which is movable independently of the apparatus. Additionally, the apparatus may be vehicle mounted for easy movement thereof.
REFERENCES:
patent: 2960831 (1960-11-01), Lonaberger et al.
patent: 3363512 (1968-01-01), Ottestad
patent: 3363513 (1968-01-01), Ottestad
patent: 3601285 (1971-08-01), Leger
patent: 3601987 (1971-08-01), Chermensky
patent: 3601988 (1971-08-01), Chermensky
patent: 4449856 (1984-05-01), Tokoro et al.
Husar Cornelius J.
Stodola Nancy J.
Utilitech, Incorporated
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