Pneumatic device for excavating and removing material

Details Pneumatic device for excavating and removing material Pneumatic device for excavating and removing material

1990-06-21

1991-02-12

Taylor, Dennis L.

Excavating

Peat excavators

37 63, 37 58, E02F 388

Patent

active

049913212

ABSTRACT:
A high velocity pneumatic device for excavating and removing material such as soil. The device includes an elongated pressure tube having an inlet end connected to a source of gas, such as air, under pressure and the opposite or distal end is bent and projects into a removal tube. The projecting end of the pressure tube is provided with a pair of outlets with a first of the outlets facing away from the inlet end and the second outlet facing toward the inlet end. A nozzle is removably connected in the first outlet and is constructed to increase the velocity of air being discharged through the nozzle toward the soil to thereby dislodge or excavate the soil. A plug containing an orifice is connected to the second outlet and air flowing from the pressure tube through the orifice creates as aspirating action to draw the dislodged soil upwardly through the removal tube to a discharge site. By incorporationg a solid plug or closure in the second outlet in place of the orifice, the device can be used solely for excavating, and by connecting a solid plug in the first orifice the tool can be used only for removal of material.

REFERENCES:
patent: 1778942 (1930-10-01), Harp
patent: 1994884 (1935-03-01), Chew
patent: 3585740 (1971-06-01), de Koning et al.
patent: 3674100 (1972-07-01), Becker
patent: 3858398 (1975-01-01), Van Weele
patent: 4479741 (1984-10-01), Berti et al.
patent: 4497519 (1985-02-01), Grable
patent: 4776731 (1988-11-01), Briggs et al.

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