Clamp for joining tubular pipe sections

• US 5,782,499 A
• Filed: 09/05/1996
• Issued: 07/21/1998
• Est. Priority Date: 09/16/1995
• Status: Expired due to Fees

• Current Assignee: Daimler Chrysler Company LLC (Stellantis NV)
• Original Assignee: Mercedes-Benz AG (Mercedes-Benz Group AG)
• Inventors: Roder, Thomas, Oster, Otto, Gfrerer, Heinrich
• Primary Examiner(s): Nicholson, Eric K.
• Application Number:
  US08/708,647
• Time in Patent Office: 684 Days
• Field of Search: 285/23, 285/420, 285/410, 285/409, 285/252, 285/253
• US Class Current: 285/23
• CPC Class Codes: F01N 13/1805 Fixing exhaust manifolds, exhaust pipes or pipe sections to each other, to engine or to vehicle body pipe joints in general F16L; fixing auxiliaries in motor vehicles in general B60K
• CPC Class Codes: F16L 23/08 connection by tangentially arranged pin and nut

Abstract

In a pipe jointure for joining pipe sections, particularly of exhaust systems of motor vehicles including a clamp having opposite leg portions with clamping surfaces for enclosing and firmly engaging adjacent ends of the pipe sections, at least one of the leg portions has radially inwardly and axially outwardly directed tabs extending therefrom in circumferentially spaced relationship for retaining and guiding the adjacent pipe sections while the clamp is mounted and tightened by compressing bolts.

Claims

1. A pipe jointure for pipe end sections having conical end flanges, particularly of exhaust systems of motor vehicles, said pipe jointure including a clamp having opposite leg portions with clamping surfaces enclosing and firmly engaging adjacent conical end flanges of said pipe sections, and means for compressing said clamp for clamping said pipe sections together, at least one of said leg portions of said clamp having radially inwardly and axially outwardly directed tabs formed thereon in circumferentially spaced relationship which extend at least one of the clamping surfaces for engaging an adjacent pipe section end flange during mounting of the clamp, said tabs each including at least two outwardly inclined areas, a radially outer area and a radially inner area which has a greater inclination than said radially outer area which is joined to said leg portion.

2. A clamp according to claim 1, wherein said pipe jointure has a U-shaped cross-section and said opposite leg portions are inclined outwardly in axial direction of said clamp and said clamping surfaces are disposed at opposite inner sides of said opposite leg portions, said tabs extending said clamping surfaces.

3. A pipe jointure according to claim 1, wherein said clamp has an axial projection for engagement with a stop formed on a pipe section for properly locating and retaining said clamp with respect to said pipe section.

4. A pipe jointure according to claim 1, wherein said clamp comprises two clamp halves which are joined by a hinge portion.

5. A pipe jointure according to claim 1, wherein said clamp has radial cutouts formed in its opposite leg portions in circumferentially spaced relationship.

6. A pipe jointure for pipe end sections having conical end flanges, particularly of exhaust systems of motor vehicles, said pipe jointure including a clamp having opposite leg portions with clamping surfaces enclosing and firmly engaging adjacent conical end flanges of said pipe sections, and means for compressing said clamp for clamping said pipe sections together, at least one of said leg portions of said clamp having radially inwardly and axially outwardly directed tabs formed thereon in circumferentially spaced relationship which extend the clamping surfaces for engaging an adjacent pipe section end flange during mounting of the clamp, said clamp having an axial projection for engagement with a stop formed on a pipe section for properly locating and retaining said clamp with respect to said pipe section.