Donaldson Comapny, Inc.

James P Shields

Wayne M Wagner

John T Herman

Michael J Protas

Julian A Imes

John I Belisle

A pipe clamp including a strap adapted to surround a pipe. The strap includes first and second opposing ends separated by a gap. The clamp also includes a fastener that extends across the gap for tightening or loosening the clamp by narrowing or widening the gap between the first and second opposing ends of the strap. The first opposing end includes at least one projection and the second opposing end defines at least one recess for receiving the projection when the clamp is tightened.

Strap clamp

Bent bolt clamp

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,of the first axial portion and an inner diameter D,of the second axial portion such that the inner diameter D,is larger than the inner diameter D,. The clamp further includes a single fastener for tightening both the first and second axial portions at the lap joint.

Exhaust system clamp

The present disclosure relates to guillotine clamp including a U-bolt mounted on a saddle member. The U-bolt has a concave portion that opposes a corresponding concave portion of the saddle member. At least one curved shim is positioned between the concave portions of the U-bolt and the saddle member to provide both sealing and clamping of a lap joint.

U-bolt clamp for sealing lap joints

U-bolt clamp

Growing community of inventors

Fairbank, IA, United States of America

James P Shields