Dispensing – Gas or vapor dispensing
Patent
1986-05-27
1987-11-03
Rolla, Joseph J.
Dispensing
Gas or vapor dispensing
222195, 251 63, B67B 724
Patent
active
047038691
ABSTRACT:
An air cannon which includes a pressure tank with an inlet opening and an outlet opening for air, whereby the outlet opening is composed of a tube which is airtightly fastened in the wall of the pressure tank and the one open end terminates inside the pressure tank and the other open end extends out of the pressure tank. A cylindrical shaped second tube is fixed in the pressure tank with an open end and a closed end, generally concentric to the mentioned first tube, of which the cross section is larger than the cross section of the first tube. The first tube extends through the open end into the inside of the second tube, and is generally concentric to it. In the bottom of the second tube there is provided an in and outlet opening for the in and outflow of air. On the bottom of the second tube generally concentric to the aforementioned tubes, a third tube is provided having a smaller diameter and a shorter length than the second tube with the one end airtightly fastened to a wall of the pressure tank and being of such a length that between the end of the first tube and the third tube in the interior of the second tube there is provided a space. A disk is placed in the space, which near the circumference is provided with two collars which engage the interior wall of the second tube to guide the disk for movement back and forth between the ends of the first and the third tube.
REFERENCES:
patent: 2627873 (1953-02-01), Bothe
patent: 3788527 (1974-01-01), Matson
Noland Kenneth
Rolla Joseph J.
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