| Patent Number |
Title Of Patent |
Date Issued |
| 8127756 |
Method of grinding concrete block and apparatus for grinding concrete block |
March 6, 2012 |
| The present method of grinding side ridge line portion and a side surface of concrete blocks having the flowing steps: providing a rotating shaft of the grinding machine to be rotationally supported by lower ends of two vertical bars facing each other in the direction in which a conveyor |
| 7179214 |
Splitting blade changing device for block splitter |
February 20, 2007 |
| A splitting blade changing device for a block splitter, comprising a revolving mechanism in which an upper rotary member is suspended by a supporting plate which is moved up and down by a cylinder installed in an upper part of a gate-like frame, a plurality of upper blades are held on |
| 7055517 |
Block working blade unit, block chipping machine and block chipping process |
June 6, 2006 |
| A block working blade unit which has working blades disposed in the form of a lattice in order to perform chipping work on the upper surface corner parts of a plurality of workpiece blocks when these blocks are arranged side by side at equal intervals. In a block chipping machine con |
| 4795334 |
Concrete block molding machine |
January 3, 1989 |
| A concrete block molding machine including: a gate-type frame constituting the body of the apparatus; a rail frame extending to right and left from the gate-type frame and; a pair of presses slidably mounted on the rail frame and adapted to move along the rail frame by the action of hydr |
