Back to results
US 4,904,116 AGranted
Apparatus for making tunnels in the ground and for laying supply lines
AssigneePaul Schmidt
InventorAlfons Hesse
Life of this patent
Estimating the term…
Abstract
An apparatus for making tunnels and for laying supply lines in the ground comprises an earth displacing machine which is guided by a sword projecting out of the ground to allow the attachment of a power drive engaging the free end of the sword, and makes it possible to lay the supply lines accurately over long stretches, in particular along walls or the line of roadways or paths or the like.
Claims17
Apparatus for making for making tunnels in the ground and for laying supply lines in the ground comprising;
- an earth displacing machine guided by a sword projecting above the ground, wherein the displacing machine has a wing formed for guiding the sword, said wing having a first portion extending above the ground and a second portion extending below the ground, said first portion having a means for impacting said sword and said second portion having an impact tip.
Dependencies are inferred from the claim text.