초록 ▼

The present disclosure relates to a clamp for sealing a lap joint formed by a first pipe inserted within a second pipe. The clamp includes a strap having a concave inner curvature that curves about a central axis. The strap includes a first axial end positioned opposite from a second axial end. A fi

The present disclosure relates to a clamp for sealing a lap joint formed by a first pipe inserted within a second pipe. The clamp includes a strap having a concave inner curvature that curves about a central axis. The strap includes a first axial end positioned opposite from a second axial end. A first axial portion of the strap is positioned at the first axial end, and a second axial portion of the strap is positioned at the second axial end. The first axial portion has a cylindrical inner surface adapted to provide a seal about the first pipe, and the second axial portion has a cylindrical inner surface adapted to form a seal about the second pipe. A radial in-step connects the first and second axial portions. The radial in-step provides a diameter transition between an inner diameter D.sub.1 of the first axial portion and an inner diameter D.sub.2 of the second axial portion such that the inner diameter D.sub.1 is larger than the inner diameter D.sub.2. The clamp further includes a single fastener for tightening both the first and second axial portions at the lap joint.

대표청구항 ▼

[ We claim:] [1.]1. A clamp for clamping a lap joint, the clamp comprising:A) a strap having a concave inner curvature that curves about a central axis, the strap including:i) a first axial end positioned opposite from a second axial end;ii) a first strap portion positioned at the first axial end, t

[ We claim:] [1.]1. A clamp for clamping a lap joint, the clamp comprising:A) a strap having a concave inner curvature that curves about a central axis, the strap including:i) a first axial end positioned opposite from a second axial end;ii) a first strap portion positioned at the first axial end, the first strap portion including a cylindrical inner surface defining an effective inner diameter D.sub.1 ;iii) a second strap portion positioned at the second axial end, the second strap portion having an effective inner diameter D.sub.2 ;iv) the effective inner diameter D.sub.1 being larger than the effective inner diameter D.sub.2 ;B) a single fastener for tightening the strap about the lap joint, the fastener including a single bolt for tightening both the first and second strap portions about the lap joint; andC) the second strap portion includes a cylindrical sealing surface defining the effective inner diameter D.sub.2, wherein the effective inner diameter D.sub.1 is substantially constant over an axial length of the first strap portion and the effective inner diameter D.sub.2 is substantially constant over an axial length of the second strap portion, and wherein the first and second strap portions are interconnected by a circumferential radial in-step.