US 4,496,176 A · Device for connecting flanged pipes

Abstract

The invention relates to a device for connecting flanged pipes. For this purpose, a multiple-section clamp is mainly used which includes inwardly protruding flanges engaging beyond the collars of the pipe ends. An annular profiled seal forms an approximately U-shaped hollow profile with the shanks which are formed as sealing lips and which abut against the peripheral surfaces of the collars. The assembly of the profiled seal is difficult. The sealing effect is often impaired by the peripheral surfaces of the collars being no longer sufficiently even and smooth. These drawbacks are removed by the invention such that the profiled seal has an inner profiled section extending between the faces of the collars and that the outer surfaces of the outer profiled section surrounding the peripheral surfaces of the collars are reinforced at a guide ring. Thus, the particular sealing region is disposed between the faces of the collars. The assembly is simplified by the reinforced outer profiled section of the profiled seal.

Claims19

Dependent claims

A device for connecting the ends of two pipes wherein each of said ends is provided with an annular collar having a front face at an end of the pipe, a rear face spaced axially from said front face and a peripheral surface between the front and rear faces thereof, comprising:

a clamp having at least two sections, each section of said clamp including a radially inwardly projecting flange at each axial end thereof for engaging the rear surfaces of said collars when the ends of said pipes are placed adjacent each other;
an annular elastic inner profiled member having a pair of sealing lips for contacting the front faces of said collars, said inner profiled member being disposed between the front faces of said collars and forming an approximately V-shaped cross-section extending radially inward;
and
an outer annular member surrounding the peripheral surfaces of said collars and being attached to said inner profiled member, said outer annular member extending axially to the radially inwardly projecting flanges of said clamp thereby substantially preventing axial movement of said inner profiled member with respect to said clamp regardless of the relative deflection of said collars from a co-axial position.

1 more element

Dependencies are inferred from the claim text.

Device for connecting flanged pipes

Life of this patent

Device for connecting flanged pipes

Life of this patent

Abstract

Claims19