# US 9,038,352 B2 · Half shell element for the production of a hollow body > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 9,038,352 B2 - Document ID: US9038352B2 - Status: Granted - Kind: B2 - Application number: 13/515,691 - Filed: 2010-12-14 - Published: 2012-12-13 - Granted: 2015-05-26 - Earliest claimed: 2009-12-21 - Assignees: Cobiax Technologies AG - Applicants: Georg Miedzik; Michael Stücklin - Inventors: Georg Miedzik; Michael Stücklin - Web page: https://patentgrep.com/patent/US9038352B2 ## CPC - E04B 5/328: {the filling elements being spherical} - E04C 5/203: {Circular and spherical spacers} - Y10T 29/49826: Assembling or joining - E04B: GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS (border constructions of opening in walls, floors or ceilings E06B1/00; {electromagnetic shielding H05K9/0001}) - E04C: STRUCTURAL ELEMENTS; BUILDING MATERIALS (for bridges E01D; specially designed for insulation or other protection E04B; elements used as building aids E04G; for mining E21; for tunnels E21D; structural elements with broader range of application than for building engineering F16, particularly F16S) - Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION ## Abstract The invention concerns a half shell element (10) for the production of a hollow body with an identical further half shell element (10), with at least one guide (20 . . . 20′″) for the further element (10), which is constructed in the region of a first half periphery (11) of its encircling edge (12), so that the further element (10) can be pushed onto the half shell element (10) from the second half periphery (11′) of the edge (12) lying opposite this first half periphery (11) and guided on the edge (12) and held in a final position. The hollow bodies which are thus produced can be both inserted into steel cages and also connected with each other via bars and built into concrete layers. ## Claims ### Claim 1 Half shell element (10, 10′) for the production of a hollow body (110) with an identical further half shell element (10, 10′), with at least one guide (20 . . . 20′″) for the further element (10, 10′), which is constructed in a region of a first half periphery (11) of its encircling edge (12), so that the further element (10, 10′) is configured to be pushed onto the half shell element (10, 10′) edgewise from the second half periphery (11′) of the edge (12) lying opposite this first half periphery (11) parallel to a plane of the encircling edge (12) and can be guided on the edge (12) and held in a final position, and a detent hook (30) and a detent surface (31) for engagement on a complementary detent surface (31) and a complementary detent hook (30) of the further element (10, 10′), which are arranged lying opposite each other respectively in approximately the middle of the first and second half periphery (11, 11′) of the encircling edge (12), wherein detent grooves (40, 40′) for embracing an edge region of the further half shell element (10, 10′) are constructed on both sides of the detent surface (31) on the encircling edge (12). ### Claim 2 (depends on 1) Half shell element (10, 10′) according to claim 1, in which the at least one guide (20 . . . 20′″) is constructed as a groove for embracing an edge region of the further half shell element (10, 10′). ### Claim 3 (depends on 1) Half shell element (10, 10′) according to claim 1, in which the half shell element (10, 10′) has a flattened area (50) on a pole side. ### Claim 4 (depends on 3) Half shell element (10, 10′) according to claim 3, in which the flattened area (50) has an encircling shoulder (51) with an indented base surface (52) surrounded thereby. ### Claim 5 (depends on 4) Half shell element (10, 10′) according to claim 4, in which the base surface (52) is provided with information (53) stamped therein or thereon concerning the half shell element (10, 10′). ### Claim 6 (depends on 4) Half shell element (10, 10′) according to claim 4, in which the encircling shoulder (51) has at least one channel (60 . . . 60″) which extends as an extension of the base surface (52) towards an outer surface (13) of the half shell element (10, 10′). ### Claim 7 (depends on 6) Half shell element (10, 10′) according to claim 6, in which the base surface (52) in extension of the at least one channel (60 . . . 60″) is provided with at least one respective elevation (70 . . . 70″) at the height of the shoulder (51). ### Claim 8 (depends on 7) Half shell element (10, 10′) according to claim 7, in which the at least one elevation (70 . . . 70″) is provided with a through-bore (71 . . . 71″), which connects an inner side with an outer side of the half shell element (10, 10′). ### Claim 9 (depends on 1) Half shell element (10, 10′) according to claim 1, on the inner surface of which reinforcement ribs (90 . . . 90′″″) run, which extend in a star shape originating from a pole (P) of the half shell element (10, 10′). ### Claim 10 (depends on 9) Half shell element (10, 10′) according to claim 9, in which the reinforcement ribs (90 . . . 90′″″) are dimensioned and shaped so that they lie against the outer surface (13) of a further half shell element (10, 10′) which is stacked into the half shell element (10, 10′). ### Claim 11 (depends on 1) Half shell element (10, 10′) according to claim 1, in which an outer surface (13) of the half shell element (10, 10′) has at least one first clip (100, 100′) for the clamping of a bar (101 . . . 101′″), in order to connect this half shell element (10, 10′) with further identical half shell elements (10, 10′). ### Claim 12 (depends on 11) Half shell element (10, 10′) according to claim 11, in which the at least one first clip (100, 100′) is arranged in a region of a flattened area (50), on a pole side, of the half shell element (10, 10′). ### Claim 13 (depends on 12) Half shell element (10, 10′) according to claim 12, in which the at least one first clip (100, 100′) is arranged on a base surface (52) which is indented into the half shell element (10, 10′) via a shoulder (51) on the flattened area (50). ### Claim 14 (depends on 1) Hollow body (110), consisting of a combination of half shell elements (10, 10′) connected with each other, according to claim 1. ### Claim 15 (depends on 14) Hollow body (110) according to claim 14, in which the half shell elements (10, 10′) which are connected with each other are identical. ### Claim 16 (depends on 14) Hollow body (110) according to claim 14, in which the half shell elements (10, 10′) which are connected with each other are different in their height. ### Claim 17 (depends on 11) Method for the connecting of hollow bodies (110), wherein the hollow bodies (110) are produced from a combination of half shell elements (10, 10′) according to claim 11, in which a row or a surface of hollow bodies (110), connected with each other, is produced, by bars (101 . . . 101′″), running continuously over the hollow bodies (10, 10′) which are to be connected, being clamped into the first clips (100, 100′) of a hollow body (110) and into the corresponding first clips (100, 100′) of all further hollow bodies (110), which lie in a respective running direction of a bar (101 . . . 101′″). ### Claim 18 (depends on 14) Use of a hollow body according to claim 14 as displacer in a concrete layer.