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US 4,067,200 AGranted
Device and method for installing ducts in holes produced by soil piercing tool
OwnerJohn L. Watts, Jr., James H. Pattoninventors
Life of this patent
Estimating the term…
Abstract
A method and an apparatus for pulling flexible duct through soil simultaneously with the penetration of soil which comprises a means for penetrating the soil having a duct receiving portion mounted to its trailing end. The duct is pulled through the soil by a pulling means operably associated with the penetrating means which acts to pull the duct in the same direction and simultaneously with the movement of the penetrating means.
Claims10
An apparatus for pulling flexible duct through soil comprising:
- a. means for penetrating the soil having a leading end and a trailing end;
- b. means mounted to the trailing end of the penetrating means for receiving an end of the duct;
- c. means mounted to said penetrating means and said duct for pulling said duct through said soil simultaneously as said penetrating means moves through and penetrates said soil, the pulling means comprising:
- a. a member mounted to said duct to the rear of the end of said duct,
- b. means having one end mounted to said penetrating means and another end mounted to the member for interconnecting said penetrating means and said member so that movement in one direction by said penetrating means will pull the interconnecting means and said member in the one direction.
2 more elements
An apparatus for pulling flexible duct through soil comprising:
- a. means for penetrating the soil the penetrating means having a leading end and a trailing end;
- b. a cylindrical extension having one end mounted to the trailing end of said penetrating means and another end adapted to receive an end of the duct;
- c. means secured to said penetrating means and said duct for pulling said duct through said soil simultaneously as said penetrating means moves through and penetrates said soil, the pulling means comprising:
- a. an end member mounted to the other end of said duct, and
- b. means having one end mounted to said penetrating means and another end mounted to the end member for interconnecting said penetrating means and said end member, the interconnecting means passing generally coaxially through the cylinder and said duct.
2 more elements
Dependencies are inferred from the claim text.