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US 6,634,607 B2Granted
Pipe clamp
AssigneeDonaldson Company, Inc.
InventorsJames E. Vogel, John L Belisle, Wayne M. Wagner
Life of this patent
Estimating the term…
Abstract
A clamp for sealing a lap joint is disclosed. The clamp includes a band having a main body and bolts mounting flanges located at opposite ends of the main body. A sealing bar is mounted between the bolt mounting flanges of the band. The sealing bar includes a pre-formed step for assisting in sealing the lap joint.
Claims30
A pipe clamp comprising:
- a band including a main body and bolt mounting flanges located at opposite ends of the main body, the bolt mounting flanges each having a length and a height, the bolt mounting flanges each including first and second bolt openings spaced-apart along the length of each bolt mounting flange, the first and second bolt openings of each bolt mounting flange being staggered in a direction corresponding to the height of each bolt mounting flange, the bolt mounting flanges being defined by doubled over portions of the band, the doubled over portions being bent to define concave pockets, and portions of the bolt mounting flanges being extruded outwardly into the first and second bolt openings of the outer reinforcing bars;
- a sealing bar mountable between the bolt mounting flanges of the band, the sealing bar including a length and a height, the sealing bar including first and second bolt openings adapted to respectively align with the first and second bolt openings of the bolt mounting flanges, the first and second bolt openings of the sealing bar being spaced-apart along the length of the sealing bar and being staggered in a direction corresponding to the height of the sealing bar;
- retaining bars around which the band is bent to form the doubled over portions of the mounting flanges;
- and
- outer reinforcing bars mountable in the concave pockets, the outer reinforcing bars including convex portions sized to fit within the concave pockets, each of the outer reinforcing bars having a length and a height, each of the outer reinforcing bars including first and second bolt openings that are spaced-apart along the length of each outer reinforcing bar and are adapted to respectively align with the first and second bolt openings of the bolt mounting flanges, the first and second bolt openings of each outer reinforcing bar being staggered in a direction corresponding to the height of each outer reinforcing bar.
2 more elements
A pipe clamp comprising:
- a band including a main body and bolt mounting flanges located at opposite ends of the main body, the bolt mounting flanges each having a length and a height, the bolt mounting flanges each including first and second bolt openings spaced-apart along the length of each bolt mounting flange;
- and
- a sealing bar mountable between the bolt mounting flanges of the band, the sealing bar including a length and a height, the sealing bar including first and second bolt openings adapted to respectively align with the first and second bolt openings of the bolt mounting flanges, the sealing bar including a sealing side and a reaction side, the sealing side being separated from the reaction side by the height of the sealing bar, the sealing bar also including an offset portion located between the first and second openings, the offset portion including a step located at the reaction side of the sealing bar and a step located at the sealing side of the sealing bar.
A pipe clamp comprising:
- a band including a main body and bolt mounting flanges located at opposite ends of the main body, the bolt mounting flanges each having a length, the bolt mounting flanges each including first and second bolt openings spaced-apart along the length of each bolt mounting flange;
- and
- a sealing bar mountable between the bolt mounting flanges of the band, the sealing bar including a length and a height, the sealing bar including first and second bolt openings adapted to respectively align with the first and second bolt openings of the bolt mounting flanges, the sealing bar including a sealing side and a reaction side, the sealing side being separated from the reaction side by the height of the sealing bar, the sealing bar also including a factory manufactured step located at the sealing side at a location between the first and second openings of the sealing bar.
A pipe clamp comprising:
- a band including a main body and bolt mounting flanges located at opposite ends of the main body, the bolt mounting flanges each having a length, the bolt mounting flanges each including first and second bolt openings spaced-apart along the length of each of the bolt mounting flanges;
- and
- a sealing bar mountable between the bolt mounting flanges of the band, the sealing bar including a length and a height, the sealing bar including first and second bolt openings adapted to respectively align with the first and second bolt openings of the bolt mounting flanges, the sealing bar including a sealing side and a reaction side, the sealing side being separated from the reaction side by the height of the sealing bar, the sealing bar also including a deformation opening at a location between the first and second openings of the sealing bar, the deformation opening having a height and a length, the ratio of the height to length of the deformation opening being in the range of 0.75 to 1.25.
A pipe clamp comprising:
- a band including a main body and bolt mounting flanges located at opposite ends of the main body, the bolt mounting flanges each having a length, the bolt mounting flanges each including first and second bolt openings spaced-apart along the length of each of the bolt mounting flanges;
- and
- a sealing bar mountable between the bolt mounting flanges of the band, the sealing bar including a length and a height, the sealing bar including first and second bolt openings adapted to respectively align with the first and second bolt openings of the bolt mounting flanges, the first and second bolt openings of the sealing bar each having a height, the sealing bar including a sealing side and a reaction side, the sealing side being separated from the reaction side by the height of the sealing bar, the sealing bar also including a deformation opening at a location between the first and second openings of the sealing bar, the deformation opening having a height that is at least 50 percent as tall as the heights of the first and second bolt openings of the sealing bar, and the deformation opening being fully enclosed within the sealing bar.
A method for making a pipe clamp comprising:
- providing a band including a main body and bolt mounting flanges located at opposite ends of the main body, the bolt mounting flanges each having a length, the bolt mounting flanges each including first and second bolt openings spaced-apart along the length of each of the bolt mounting flanges;
- providing a sealing bar mountable between the bolt mounting flanges of the band, the sealing bar including a length and a height, the sealing bar including first and second bolt openings adapted to respectively align with the first and second bolt openings of the bolt mounting flanges, the sealing bar including a sealing side and a reaction side, the sealing side being separated from the reaction side by the height of the sealing bar;
- and
- making a step at the sealing side of the sealing bar while the sealing bar is not fastened to the band, the step being made at a location between the first and second bolt openings of the sealing bear.
1 more element
A pipe clamp comprising:
- a band including a main body and bolt mounting flanges located at opposite ends of the main body, the bolt mounting flanges each having a length and a height, the bolt mounting flanges each including first and second bolt openings spaced-apart along the length of each of the bolt mounting flanges, the bolt mounting flanges being curved such that each of the bolt mounting flanges defines an outwardly facing concave surface and an inwardly facing convex surface;
- a sealing bar mounted between the bolt mounting flanges of the band, the sealing bar including a length and a height, the sealing bar including first and second bolt openings that align with the first and second bolt openings of the bolt mounting flanges, the sealing bar including a sealing side and a reaction side, the sealing side being separated from the reaction side by the height of the sealing bar, the sealing bar also including concave pockets that face in opposite directions, each of the concave pockets receiving the convex surface of a corresponding one of the bolt mounting flanges;
- outer reinforcing bars including convex portions sized to fit within the outwardly facing concave surfaces of the bolt mounting flanges, each of the outer reinforcing bars having a length and a height, each of the outer reinforcing bars including first and second bolt openings that are spaced-apart along the length of each of the outer reinforcing bars and that respectively align with the first and second bolt openings of the bolt mounting flanges;
- and
- the bolt mounting flanges including portions that project outwardly into the first and second bolt openings of the outer reinforcing bars.
2 more elements
Dependencies are inferred from the claim text.