Protection cover for pipe bends

Claim 1

An elongate protection cover for pipe bends, each such pipe bend defining a curvature plane and having an exterior side and an interior side; said cover comprised of a deformable material that has been deep drawn into a shape which is similar to the shape which could be obtained if an integral and complete cover installed on a pipe bend had been cut along the interior generatrics line of the pipe bend and spread apart and opened up, said cover before being installed on a pipe bend having longitudinal and transverse planes of symmetry and comprising a cup-shaped portion elongated along said longitudinal plane of said cover and having long sides and short sides, said cup-shaped part being rounded in transverse cross-section; and a tail section located at each short side of said cup-shaped part, each said tail section having a concave bend therein such that when said cover is applied to a pipe bend with said longitudinal plane of said cover perpendicular to the curvature plane of the pipe bend, each said tail section can be folded at least to an edge line located along the interior generatrics line of the pipe bend; said cup-shaped part having a first curvature radius in the transverse direction determining the curvature of said cover, when applied to a pipe bend, on the exterior side of the pipe bend; and said cover further having, when applied to the pipe bend, a second curvature radius determining the curvature of the cover on the interior side of the pipe bend, said first and second radii respectively having first and second mutually different centers, said first center being located closer to the exterior side of the pipe bend than said second center, said second curvature radius being greater than said first curvature radius; said two tail sections, before said cover is applied over the pipe bend, having the free edges thereof in the same plane, said same plane being perpendicular to both said transverse and longitudinal planes of said cover, and the connecting edges connecting said two tail sections and defining the lower edges of said long sides of said cup-shaped part being curved upward and above said same plane.