EP 0469687 A3 19920401 - SYSTEM FOR MAKING CONCRETE FLOORS
Title (en)
SYSTEM FOR MAKING CONCRETE FLOORS
Publication
Application
Priority
NL 9001726 A 19900731
Abstract (en)
[origin: EP0469687A2] The invention relates to a floor leveling apparatus. According to the invention, it comprises a supporting frame (1), at least two cylindrical cage wheels (2,8) with a coarse-meshed circumferential surface (4), supported by the supporting frame (1), at least one of the cage wheels (2) being adapted to be driven in two directions, a control apparatus (12) acting on the cage wheels (2,8), two leveling cylinders (13,14) constructed as screw jacks and adapted to driven in rotational direction. The cylinders (13,14) are mounted, as viewed in the direction of travel, respectively, in front (13) of and behind (14) the cage wheels, and the terminal ends of each leveling cylinder (13,14) is mounted in supporting bars (15) which are continuously adjustable in vertical direction, relative to the supporting frame (1). The invention further relates to an apparatus for uniformly supplying concrete and distributing same over a surface, comprising a transport duct connectable to a concrete pump of a concrete mixer. According to the invention the apparatus comprises a concrete distributing vehicle (CD) equipped with a two-part concrete distributing tube (73,74) hingedly connected to the vehicle (C), the two members (73,74) of the tube being pivotally interconnected and the distributing tube being connectable to the transport hose, in which a pulsation damper is mounted. <IMAGE>
IPC 1-7
IPC 8 full level
E01C 19/40 (2006.01); E04G 21/04 (2006.01); E04G 21/10 (2006.01)
CPC (source: EP)
E01C 19/40 (2013.01); E04G 21/04 (2013.01); E04G 21/0436 (2013.01); E04G 21/10 (2013.01)
Citation (search report)
- [A] GB 1020691 A 19660223 - GEORGES BESSE
- [A] US 4614486 A 19860930 - BRAGAGNINI BRUNO [US]
- [A] US 4913584 A 19900403 - GARNER JAMES D [US], et al
- [A] GB 2082238 A 19820303 - JOHANSSON LEIF
- [A] WO 8504686 A1 19851024 - ALVARSSON YNGVE
Designated contracting state (EPC)
DE FR GB IT NL
DOCDB simple family (publication)
EP 0469687 A2 19920205; EP 0469687 A3 19920401; CA 2047446 A1 19920201; NL 9001726 A 19920217
DOCDB simple family (application)
EP 91201978 A 19910730; CA 2047446 A 19910719; NL 9001726 A 19900731