Improvements in/or and relating to utility chambers and...

B - Operations – Transporting – 65 – D

Patent

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Details

B65D 88/76 (2006.01) B65D 90/10 (2006.01) B65D 90/62 (2006.01) E02D 29/12 (2006.01) E02D 29/14 (2006.01) E03F 5/02 (2006.01) H02G 3/14 (2006.01)

Patent

CA 2663634

The invention relates to a moulded or cast frame for use with a below surface utility chamber defining an entrance to the utility chamber. The frame forms a surround for the opening. The frame also has an outer wall that depends downwardly from the surround, and an inner wall bounding the opening and depending downwardly from the surround. There is also at least one inwardly directed flange or step from the inner wall. The outer wall has a lowermost surface, and at least one of the inner wall, flange or step or extension or extensions thereof also has lowermost surface, the lowermost surfaces present to collectively form a downwardly directed bearing surfaces. Disclosed also is a method of using the frame and setting it into surrounding and supporting material as well as adjusting the relative height of the frame to the surrounding and supporting material.

L'invention concerne un cadre moulé ou fondu utilisé avec une chambre utilitaire à surface inférieure définissant une entrée dans ladite chambre. Le cadre forme un encadrement pour l'ouverture. Ce cadre comprend également une paroi externe qui dépend en aval de l'encadrement, et une paroi interne limitant l'ouverture et dépendant en aval de l'encadrement. Il y a également au moins un rabat ou une marche dirigé vers l'intérieur de la paroi interne. La paroi externe possède une surface inférieure, et au moins la paroi interne, le rabat ou la marche ou une extension ou des extensions de celle-ci possédant une surface inférieure, ces surfaces inférieures servant à former de façon collective des surfaces supports dirigées vers le bas. L'invention concerne également un procédé d'utilisation et d'installation du cadre dans un matériau d'encadrement et de support ainsi que le réglage de la hauteur relative du cadre par rapport au matériau d'encadrement et de support.

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