Method and apparatus for sealing a space
AssigneeHilti Aktiengesellschaft
InventorsMarkus Kögler, Franz Heimpel, Silvia Huber, Peter Vogel
Life of this patent
Estimating the term…
Abstract
For sealing an annular space (4) between opening (2) in a wall or similar, member (1) and an object (3), extending through the opening (2), by introducing a sealing agent into the space (4), at least one bag (9, 10), into which the sealing agent is introduced, is positioned in the space (4). For this purpose, a supporting element (5, 6) is used, which can be positioned in the opening and to which a bag (9, 10) is fastened. The annular space (4) can be sealed easily and also liquid-tight in this manner.
Claims12
A method of permanently sealing an annular sealing space (4) between a laterally closed opening (2) having an axial direction through a wall or similar structure (11) and an object (3) extending inwardly and spaced inwardly from through the opening, said opening (2) having a circumferentially extending peripheral surface through the wall and an entrance into the opening, comprising the steps of mounting a plurality of bags (9, 10) on a plural part supporting element (5, 6) sized to fit into and to form a closure wherein the surface fits into the opening (2) with the bags constructed in a tubular and folded fashion and secured to the supporting element and being initially empty, the plural part supporting element is a split annular member, inserting the supporting element with the bags at least partially in the axial direction into the opening, and with the bags spaced inwardly of the opening (2), filling the bags (9, 10) with a curable sealing agent and unfolding and expanding the bags, the curable sealing agent, after being cured, providing permanent sealing contact with the object (3) and with the circumferentially extending peripheral surface of the wall or similar structure of said laterally closed opening (2).
An apparatus for sealing an annular space (4) between an axially extending laterally closed opening (2) through a wall or similar structure (1) having an entrance into the opening and an object (3) extending through the entrance into the opening, the apparatus comprising a plural part supporting element formed as a split annular member (5, 6) and plural tubular bags are arranged to extend at least in part in the axial direction through the entrance into the annular space within the opening and to extend circumferentially about said object (3), and form a closure of the entrance into the opening, the plural tubular bags (9, 10) secured to said supporting element (5, 6) and initially in an empty condition so that said bags are spaced inwardly of said opening, said bags in the empty condition are folded on the supporting element, and an age hardening sealing agent is filled into said tubular bags (9, 10) to expand said bags into permanent sealing contact with said object (3) and with a circumferentially extending surface of said opening (2) and extends inward of said supporting element so that the closed opening (2) and the object (3) is completely permanently sealed.
Dependencies are inferred from the claim text.