초록 ▼

A pipe coupling is disclosed which comprises an open sleeve which is stretched around the pipes. The open sleeve comprises a roundish sector and a channel-shaped sector comprising a pair of sidewalls extending outwardly from the roundish sector. Force applying means are connected with the sidewalls

A pipe coupling is disclosed which comprises an open sleeve which is stretched around the pipes. The open sleeve comprises a roundish sector and a channel-shaped sector comprising a pair of sidewalls extending outwardly from the roundish sector. Force applying means are connected with the sidewalls to draw the sidewalls together and retaining means on the sidewalls are trapped by the force applying means so that the roundish portion of the sleeve is stretched over the pipes.

대표청구항 ▼

In a pipe coupling of the type comprising a sleeve adapted to receive one pipe inside one end and another pipe inside the other end, said sleeve having a cross section including a roundish sector and a radially projecting channel shaped sector, force applying means connected with the channel-shaped

In a pipe coupling of the type comprising a sleeve adapted to receive one pipe inside one end and another pipe inside the other end, said sleeve having a cross section including a roundish sector and a radially projecting channel shaped sector, force applying means connected with the channel-shaped sector and adapted to act on the sleeve for deforming the sleeve to change the cross sectional dimensions thereof to stretch the sleeve around said pipes, the improvement wherein said channel-shaped sector comprises a pair of sidewalls extending outwardly from the roundish sector and being separated from each other at the outer ends to form an opening in the sleeve, a spline disposed between the sidewalls and having a concave surface opposite each sidewall, a pair of bars each having a convex surface, one bar being disposed against one sidewall opposite one concave surface of the spline and the other bar being disposed against the other sidewall opposite the other concave surface of the spline, each of said sidewalls having a retaining member on the outer edge thereof and disposed outwardly of the spline and the respective bar, said retaining members having a greater thickness than the respective sidewalls, said force applying means including at least one bolt and nut with the bolt extending laterally through the bars, sidewalls and spline and being adapted to draw the bars together and force the sidewalls against the concave surfaces of the spline with said retaining members being trapped against the outer surfaces of the spline and bars whereby the sleeve may be stretched around said pipes.