E - Fixed Constructions – 03 – F
Patent
E - Fixed Constructions
03
F
E03F 3/04 (2006.01) F16L 41/02 (2006.01) F16L 41/08 (2006.01)
Patent
CA 2744902
The pipe access device is comprised of a curved plate (30) adapted to engage an underground pipe (10) along an arc of the outer surface of the pipe, and a boss (32) extending upwardly from the curved plate about an aperture (34) in the curved plate. The curved plate extends along an arc of the outer surface of the curved plate that corresponds to a central angle of the pipe less than or equal to 180°. The curved plate includes a concave surface with a radius of curvature less than a radius of curvature of the outer surface of the pipe so as to bias the curved plate against the outer surface of the pipe when the curved plate is flexed to engage the pipe. The pipe access device is for use in providing access to the buried pipe that requires minimal excavation and disruption of the soil. In the expanded state, the boss is oval-shaped but changes to a circular form when pressed against the pipe and fixed thereto.
Selon l'invention, le dispositif d'accès au tuyau se compose d'une plaque incurvée (30) destinée à venir en prise avec un tuyau souterrain (10) le long d'un arc de la surface externe du tuyau, d'une bosse (32) se prolongeant vers le haut à partir de la plaque incurvée autour d'un orifice (34) dans ladite plaque incurvée. Celle-ci s'étend le long d'un arc de la surface externe de la plaque incurvée qui correspond à un angle central du tuyau inférieur ou égal à 180°. La plaque incurvée comporte une surface concave dont le rayon de courbure est inférieur à un rayon de courbure de la surface externe du tuyau de façon à solliciter la plaque incurvée contre la surface externe du tuyau lorsque la plaque incurvée est repliée pour venir en prise avec le tuyau. Le dispositif d'accès au tuyau permet d'avoir accès au tuyau enterré qui nécessite une excavation et une perturbation minimales du sol. En l'état déployé, la bosse est de forme ovale, mais elle devient circulaire lorsqu'elle comprimée contre le tuyau auquel elle fixée.
Lmk Enterprises Inc.
Oyen Wiggs Green & Mutala Llp
LandOfFree
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