Patent ID: 7748753
Filing Date: 2010-07-06
Classification: F16L

Abstract:
1. An improved band-clamp releasable coupling for mechanical and hydraulic linear interconnection of the ends of two pipes; comprising: a) an outer housing of cross-section resembling a wide, low-wall channel, the walls thereof facing the center of said pipes and the housing being curved to be slightly larger than the pipe diameter; b) a low-wall inner channel fitting into said outer channel, said inner channel being provided with spaced-apart inwardly-facing projections adjacent to each of said inner channel walls, each projection having a first sloping side axially facing a line of pipe abutment and having a second sloping side axially facing away from said line of pipe abutment; c) a sloped internally-toothed grip washer disposed proximate to each of said projection second sides; d) a circumferential elastomeric seal member disposed inside said inner channel and extending along the major portion of the width thereof to abut both said first sides axially facing the line of pipe abutment; and e) clamping elements to allow clamping of said housing around said pipes, preventing leakage of fluid carried by said pipes and preventing axial separation therebetween.