| Patent Number |
Title Of Patent |
Date Issued |
| 5634390 |
Rotary actuator |
June 3, 1997 |
| Disclosed is a rotary actuator utilizing magnetic screws which are stably rotatable at a great torque with little torque variation. The rotary actuator comprising (a) a closed hollow cylinder, a piston sliding within the cylinder, and a rotary shaft which rotates with the sliding of the |
| 5473971 |
Rodless cylinder |
December 12, 1995 |
| Disclosed is a rodless cylinder having a cylinder barrel with a slit formed axially therein. A piston is movably housed in the cylinder barrel. A mounting table is disposed movably along the external surface of the cylinder barrel and connected to the piston through the slit. An external |
| 4159890 |
Paving material extrusion molding apparatus |
July 3, 1979 |
| A paving material extrusion molding apparatus for continuously laying or molding a paving material wherein the paving material supplied into hoppers is conveyed into a molding element by a plurality of screw conveyors, the paving material is compacted or consolidated by screw thrusts |
| 4145155 |
Paving material extrusion molding apparatus |
March 20, 1979 |
| The paving material supplied into a hopper is conveyed by screw conveyors into a mold provided in the lower part of the apparatus thereby molding and laying the material. The paving material is densely compacted or consolidated in the mold, and when the paving material is conveyed under |
