Patent ID: 6305054
Filing Date: 2001-10-23
Classification: F01N,F16L,Y10T

Abstract:
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.