Patents Assigned to Uretek Worldwide Oy
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Patent number: 9200422Abstract: Method and arrangement for supporting a structure. Beneath the structure there is arranged a cohesion structure, which transfers the structure load through shaft adhesion to surrounding ground. The cohesion structure includes an expansion element having a wall of flexible material, inside which there is injected along an injecting pipe unreacted polymer, which reacts in the expansion element. The expansion element with the reacted polymer therein constitutes the cohesion pillar. The polymer is water absorbing material and the wall of the expansion element is of water-permeable material, whereby the cohesion pillar is arranged to absorb water from the surrounding ground so as to improve the adhesion between the expansion element and the surrounding ground.Type: GrantFiled: December 19, 2011Date of Patent: December 1, 2015Assignee: Uretek Worldwide OYInventors: Sami Hakkinen, Tuomas Lievonen, Antti Perala
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Patent number: 8956083Abstract: The invention relates to a method and an apparatus for injecting a material into soil. A material (3) which expands as a consequence of a chemical reaction is injected into the soil (2) through an injection bar (5). During injection, a quantity related to a feed volume flow of the injectable material (3) is monitored. When the quantity indicates that the feed volume flow has dropped below a determined limit value, a reaction regarding a procedure related to the injection follows.Type: GrantFiled: February 7, 2011Date of Patent: February 17, 2015Assignee: Uretek Worldwide OYInventors: Sami Häkkinen, Tuomas Lievonen
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Publication number: 20140017015Abstract: Method and arrangement for supporting a structure. Beneath the structure there is arranged a cohesion structure, which transfers the structure load through shaft adhesion to surrounding ground (2). The cohesion structure includes an expansion element (6) having a wall of flexible material, inside which there is injected along an injecting pipe (7) unreacted polymer (8), which reacts in the expansion element (6). The expansion element (6) with the reacted polymer (8) therein constitutes the cohesion pillar (5). The polymer (8) is water absorbing material and the wall of the expansion element (6) is of water-permeable material, whereby the cohesion pillar (5) is arranged to absorb water from the surrounding ground (2) so as to improve the adhesion between the expansion element (6) and the surrounding ground (2).Type: ApplicationFiled: December 19, 2011Publication date: January 16, 2014Applicant: URETEK WORLDWIDE OYInventors: Sami Hakkinen, Tuomas Liebonen, Antti Perala
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Publication number: 20130129423Abstract: The invention relates to a method and arrangement for preventing movement of a structure. An expansion element (6) is arranged in soil. A material which expands inside the expansion element (6) as a consequence of a chemical reaction is injected into the expansion element (6). The expanded expansion element (6) remains in its place in the soil owing to friction and cohesive forces, and it is fastened to the structure (2), the expansion element (6) thus preventing movement of the structure (2).Type: ApplicationFiled: April 18, 2011Publication date: May 23, 2013Applicant: URETEK WORLDWIDE OYInventors: Sami Häkkinen, Tuomas Lievonen
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Publication number: 20130051929Abstract: The invention relates to a method and an apparatus for injecting a material into soil. A material (3) which expands as a consequence of a chemical reaction is injected into the soil (2) through an injection bar (5). During injection, a quantity related to a feed volume flow of the injectable material (3) is monitored. When the quantity indicates that the feed volume flow has dropped below a determined limit value, a reaction regarding a procedure related to the injection follows.Type: ApplicationFiled: February 7, 2011Publication date: February 28, 2013Applicant: URETEK WORLDWIDE OYInventors: Sami Häkkinen, Tuomas Lievonen
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Patent number: 7789591Abstract: A hole (6) is provided in soil or a structure, and an injection bar (1) having a fillable expansion element (2) in connection therewith is arranged into the hole. A substance which expands as a consequence of a chemical reaction is injected into the expansion element (2). The expansion element (2) filled with the reacted substance condenses, fills or replaces surrounding soil or lifts as well as stabilizes ground-based structures. A force pressing the expansion element (2) against the soil is generated by the chemical reaction which expands the substance injected into the expansion element (2).Type: GrantFiled: June 4, 2007Date of Patent: September 7, 2010Assignee: Uretek Worldwide OyInventors: Sami Häkkinen, Tuomas Lievonen
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Patent number: 6634831Abstract: A method for increasing the bearing capacity of foundation soils for built structures consisting of providing a plurality of holes spaced from each other deep in the soil, and injecting into the soil, through the holes, a substance which expands as a consequence of a chemical reaction, with a potential increase in volume of at least five times the volume of the substance before expansion. The expansion of the substance injected into the soil produces compaction of the contiguous soil.Type: GrantFiled: September 2, 1999Date of Patent: October 21, 2003Assignee: Uretek Worldwide OyInventor: Carlo Canteri