Reinforcing steel connection
OwnerHeribert Hiendlinventor
Life of this patent
Estimating the term…
Abstract
A sleeveless screw connection between two reinforcing steel elements includes a conical tapped hole in one end of one of the elements, and a conical externally threaded end on the other element. The surface of each thread envelope makes an angle of between 3.degree. and 10.degree. with the axis of the respective element; the thread pitch is between 1.0 and 2.5 mm, and the thread angle is between 70.degree. and 90.degree..
Claims23
A sleeveless screw connection between two reinforcing steel rods, comprising a conical tapped hole in one of the rods and a conical threaded section on the other rod, said conical section engaging said hole, wherein the inner surface of the conical tapped hole and the envelope surface of the conical threaded section enclose an angle (a) of between about 3.degree. and 10.degree. with the longitudinal axis of the rods, with said conical threaded section and said conical tapped hole each having a thread having a thread pitch (h) approximately between 1.0 and 2.5 mm and having a screw thread angle (b) between about 70.degree. and 90.degree..
A sleeveless screw connection between at least two reinforcing steel rods, comprising a conical tapped hole inserted directly in one of the rods and a conical threaded section applied directly to the other rod, said conical threaded section engaging said conical tapped hole, wherein the inner surface of the conical tapped hole and the envelope surface of the conical threaded section enclose an angle between about 3.degree. and 4.degree. with the longitudinal axis of the rods, with said conical threaded section and said conical tapped hole each having a thread pitch (h) between 1.0 and 2.5 mm and a screw thread angle (b) of about 90.degree..
Dependencies are inferred from the claim text.