EP 0175930 B1 19911227 - PROCESS AND APPARATUS FOR MAKING HOLLOW SLABS AND SIMILAR CONSTRUCTION ELEMENTS, PREFERABLY OUT OF CONCRETE
Title (en)
PROCESS AND APPARATUS FOR MAKING HOLLOW SLABS AND SIMILAR CONSTRUCTION ELEMENTS, PREFERABLY OUT OF CONCRETE
Publication
Application
Priority
- DE 3431237 A 19840824
- DE 3529749 A 19850820
Abstract (en)
[origin: EP0175930A2] The invention relates to a process for making hollow slabs and similar construction elements, preferably by the sliding method, the material being introduced under pressure into a shaping chamber (10) by means of a conveying apparatus (2), which shaping chamber is defined by a shaping base (18), by side parts (11) and by an upper limit (14), and is characterised in that, in order to achieve compaction of the material, the latter is intermittently caused to undergo a reciprocating movement in the direction of flow, and in particular the material is compressed transversely to its direction of flow in the region of its reciprocating movement. In order to achieve this reciprocating movement, at least one shaping part (4, 5, 11, 14) is provided in the apparatus for carrying out the process, possesses a projection or a recess, and is intermittently reciprocally movable in the direction of flow of the material (Figure 1). <IMAGE>
IPC 1-7
IPC 8 full level
B28B 1/08 (2006.01); B28B 3/20 (2006.01); B28B 3/24 (2006.01); B28B 5/02 (2006.01)
CPC (source: EP)
B28B 1/084 (2013.01); B28B 3/228 (2013.01)
Designated contracting state (EPC)
BE DE FR GB IT NL SE
DOCDB simple family (publication)
EP 0175930 A2 19860402; EP 0175930 A3 19880720; EP 0175930 B1 19911227; DE 3585007 D1 19920206; DK 166767 B1 19930712; DK 383785 A 19860225; DK 383785 D0 19850823; FI 853224 A0 19850822; FI 853224 L 19860225; FI 85350 B 19911231; FI 85350 C 19930128; LV 10841 A 19951020; LV 10841 B 19951220; NO 853342 L 19860225; RU 2013205 C1 19940530
DOCDB simple family (application)
EP 85110539 A 19850822; DE 3585007 T 19850822; DK 383785 A 19850823; FI 853224 A 19850822; LV 930565 A 19930614; NO 853342 A 19850826; SU 3946997 A 19850823