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Matches 1 - 17 out of 17



Document Document Title
5107765
The above device consists mainly of a rigid explosion tank (10) with a closed rear end (11) and a front opening (12). Said tank is mounted in the direction of the slope on which the avalanche is to be triggered. It is connected to a fuel...  
4817529
A process and an apparatus for automatically positioning an explosive charge at a predetermined position above the surface of the snow for setting off an avalanche. The apparatus includes an electric winch for unwinding and rewinding a s...  
3924897
A tractor-drawn earth ripper is disclosed as including a combustion apparatus mounted on the tractor for providing repetitive explosions to aid the ripper in earth fracturing. A discharge conduit is provided for conducting gas under pres...  
3600116
An air control system for an apparatus displacing material by combustive explosions insuring that the air valve leading to the combustion chamber is closed during combustion. An air supply system for a combustive apparatus for displacing...  
3596383
A bowl-equipped earth-moving machine having an endless conveyor with its lower end disposed adjacent an earth cutting blade is disclosed. A fixed floor portion is arranged immediately rearwardly of the blade and a rolling floor portion w...  
3596382
A scraper having a bowl with an open end, and forward and rear compartments defined by an ejector in its rearward position, the ejector being capable of traversing the forward compartment to eject material out the open end. A sliding bot...  
3574404
An improvement in an apparatus for creating repetitive explosions from an outlet of a combustion chamber by actuating a digging assembly by the explosive pressures to loosen and break up hard materials. The use of piston-driven digging t...  
3461577  
3619917  
3584403  
0304098  
0294382  
0281497  
0281496  
0281495  
0276395  
0275039  

Matches 1 - 17 out of 17